Session Index

Photovoltaic Technology

Photovoltaic Technology I
Thursday, Dec. 2, 2021  13:15-15:00
Presider: Prof. Hsin-Ying Lee, NCKU Prof. Cheng-Ling Lee, NUU
Room: 303d
13:15 - 13:45
Manuscript ID.  0735
Paper No.  2021-THU-S0901-I001
Invited Speaker:
Junseok Heo
MoS2/Ge van der Waals heterojunction device towards broadband photodetection
Junseok Heo

13:45 - 14:00 Award Candidate (Paper Competition)
Manuscript ID.  0436
Paper No.  2021-THU-S0901-O001
CHI WING LEE Tuning the Charge Transfer Route by NiOx decorated p-n GaN Junction Photoelectrodes for PEC Water Splitting
CHI WING LEE;Kogularasu Sakthivel;Feng-Wu Lin;Ming-Lun Lee;Jinn-Kong Sheu

In this study, we developed NiOx decorated p-n junction GaN photoanodes for overall water splitting. The surface p-n junction enhances the charge separation and the NiOx nanoparticles catalyst reduced the interfacial charge transfer resistance. As a result, the NiOx/p-n-GaN photoanodes exhibited a photocurrent of 0.2 mA cm-2 at zero bias.

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14:00 - 14:15 Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0458
Paper No.  2021-THU-S0901-O002
Ching-Yu Hsu Optical, Material and Electrical Properties of GeSn Thin Film Prepared by Sputtering
Yu-Chen Tsai;Ching-Yu Hsu;Zingway Pei

Radio-frequency (RF) magnetron sputtering is used to prepare Germanium-tin (GeSn) alloy in this work. The crystallization, electrical conductivity, and absorbance were measured by X-ray diffraction, Raman scattering, transmission line resistance, and optical transmittance. After annealing at 450℃ for 60 minutes, the GeSn layers exhibit (111) preferred orientation, with a small grain size of 2.5 nm. By electron dispersive spectroscopy (EDS), the amount of Sn is approximately 3%. The carrier concentration for this film is 2.62E+19 cm-3 and the mobility is 18.52 cm2/Vs.

14:15 - 14:30
Manuscript ID.  0094
Paper No.  2021-THU-S0901-O003
Hsiang-Chen Wang Electric Field Fiber Sensor Based on a Fiber Bragg Grating and Liquid Crystal
Hsiang-Chen Wang;Cheng-Yu Lin;Wen-Fung Liu;Hung-Ying Chang;Wei-Chen Li

We propose an electric field intensity sensor by using a fiber Bragg grating (FBG) packaging within liquid crystals. Two different processes of FBG include the fiber side-polishing and taper etching for improving the sensitivity.

14:30 - 14:45
Manuscript ID.  0116
Paper No.  2021-THU-S0901-O004
Zih-Hua Wang Magnetic Field Sensor based on Tilted Fiber Grating combined with Magnetic Fluid
Zih-Hua Wang;Wen-Fung Liu;Cheng-Yu Lin;Yu-Chun Chang

A magnetic field sensor based on a tilted fiber Bragg grating (TFBG) combined with the magnetic fluid is proposed. By changing the magnetic field perpendicular to the TFBG axis, the wavelength of the cladding modes is shifted. For the magnetic field in the range from 0 to 60 Gauss, the maximum sensitivity of -0.586725pm/Gauss is obtained.

14:45 - 15:00
Manuscript ID.  0091
Paper No.  2021-THU-S0901-O005
Wei-Lin Shu Fiber Bragg Grating Magnetic Field Sensor Based on Magnetic Fluid
Wei-Lin Shu;Cheng-Yu Lin;Wen-Fung Liu;Hung-Ying Chang;Jeson Chen

This paper proposed a magnetic field fiber sensor based on fiber Bragg gratings (FBGs) combined with the magnetic fluid (MF). Two different fiber structures are designed for measuring the testing magnetic field by changing the index change of magnetic fluid and then to cause the variation of grating reflection spectrum.


Photovoltaic Technology

Photovoltaic Technology II
Thursday, Dec. 2, 2021  15:15-17:00
Presider: Prof. Wen-Fung Liu, FCU Prof. Cheng-Mu Tsai, NCHU
Room: 303d
15:15 - 15:30 Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0413
Paper No.  2021-THU-S0902-O001
Wei-Rong Zhuo A Mach–Zehnder Interferometer Based on an Ultracompact Leaky-Guided Liquid Core
Wei-Rong Zhuo;Tai-Kai Liu;Cheng-Ling Lee

We proposed a novel sensor based on an ultracompact leaky-guided liquid-core fiber Mach-Zehnder interferometer (LLCFMZI) for high modulation of interference spectra. The structure is based on a micron-sized hollow-core fiber (HCF) splicing a tilt endface single-mode fiber (SMF) to create a miniature oblique gap for effective access of different liquids.

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15:30 - 15:45 Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0448
Paper No.  2021-THU-S0902-O002
Chi-Shiang Chen Fiber Michelson Interferometer Temperature Sensor based on a Liquid-core Fiber
Chi-Shiang Chen;Sheng-Yun Cho;Cheng-Ling Lee

This study presents a highly sensitive liquid-core fiber Michelson interferometer (LCFMI) for sensing temperature (T). The structure is based on single-mode fiber (SMF) fusion splicing a micron-sized liquid-core fiber (LCF) whose volume of liquid is only a few picoliters.

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15:45 - 16:00
Manuscript ID.  0092
Paper No.  2021-THU-S0902-O003
Chih-Chuan Chiu Dynamic vibration sensor based on fiber Bragg grating
Chih-Chuan Chiu;Cheng-Yu Lin;Wen-Fung Liu;Yi-Lin Yu

This paper shows the fiber grating sensor for detecting acoustic vibration signals. We design two kinds of sensing structures and experimentally demonstrate to confirm the sensing performance in different frequency bands. The wavelet transform is used for analyzing the variety of the non-stationary signal.

16:00 - 16:15
Manuscript ID.  0072
Paper No.  2021-THU-S0902-O004
Yu-Tong Lee An Electric Field Sensor Based on A Tilted Fiber Bragg Grating Combined with The Liquid Crystal
Yu-Tong Lee;Wen-Fung Liu;Hung-Ying Chang;Ming-Yu Fu

This paper proposed a novel electric-field fiber sensor composed of a tilted fiber grating (TFBG) and the liquid crystal. Due to that TFBG is insensitive to electric field changes, the index change of TFBG’s cladding layer can be used for indirectly measuring the testing electric field. The variation of the electric-field intensity will create the index change of the liquid crystal and then to cause the loss-dip wavelength shift of the TFBG. By means of monitoring the wavelength shift of spectrum loss-dip to obtain the the testing electric field intensity.

16:15 - 16:30
Manuscript ID.  0095
Paper No.  2021-THU-S0902-O005
Chia-Tse Hsu Optical Fiber Grating Humidity Sensor Based on Calcium Chloride
Chia-Tse Hsu;Cheng-Yu Lin;Wen-Fung Liu;Hung-Ying Chang;Yi-Lin Yu

In this paper we propose a humidity fiber sensor by using a tapered superstructure fiber grating coated on the thin-film of calcium chloride. The operation mechanism is based on the humidity to cause the index change of calcium chloride and then to result in the grating spectrum variation.


Photovoltaic Technology

Photovoltaic Technology III
Friday, Dec. 3, 2021  10:45-12:00
Presider: Prof. Chao-Yu Chen National Cheng Kung University, Taiwan, Dr. Yong-Liang Tong Industrial Technology Research Institute, Taiwan ,
Room: 303d
10:45 - 11:15
Manuscript ID.  0737
Paper No.  2021-FRI-S0903-I001
Invited Speaker:
Tsutomu Miyasaka
Interfacial and compositional engineering for high-voltage perovskite solar cells
Tsutomu Miyasaka

11:15 - 11:30 Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0191
Paper No.  2021-FRI-S0903-O001
Adzilah Shahna Rosyadi The Formation of p and n-type Multilayer Chromium doped ReSe2 Homojunction
Adzilah Shahna Rosyadi;Ching-Hwa Ho

Doping chromium inside ReSe2, creates different carrier types of crystals, p-type (Cr10% and 20%) and n-type (Cr0%, 1%, and 5%) multilayer ReSe2. The band level predicted by temperature-dependent resistivity infers that Cr3+ (p-type) is trapped in the shallow level while Cr6+ is found in the deep level carrying n-type donor. The p-n diode, for the first time, is constructed by stacking multilayer of ReSe2 (n-type) and ReSe2: Cr 20% (p-type) in the microscale layer. Under illumination, E//b-axis polarization photovoltaic cell response exhibits the highest energy conversion efficiency and promisingly contributes to solar cell devices in 2D semiconductor.

11:30 - 11:45 Award Candidate (Paper Competition)
Manuscript ID.  0201
Paper No.  2021-FRI-S0903-O002
Ting-Chun Chang Investigation of Perovskite Solar Cells with PC61BM Electron Transport Layer and ZnO Interface Layer.
Ting-Chun Chang;Chen-Yi Liao;Guan-Syun Chen;Chia-Hsun Chen;Ching-Ting Lee;Hsin-Ying Lee

In this work, zinc oxide (ZnO) films were deposited on PC61BM electron transport layer by thermal evaporator as an interface layer for perovskite solar cells. Using ZnO films could reduce the defects on PC61BM surface and make more matching energy level which could improve the performance of perovskite solar cells.

11:45 - 12:00 Award Candidate (Paper Competition)
Manuscript ID.  0560
Paper No.  2021-FRI-S0903-O003
Bo-Xun Ke Performance Enhancement of InGaP/GaAs/Ge Solar Cell Using Plasmonic Anti-Reflective Light-Modulation
Bo-Xun Ke;Wen-Jeng Ho;Jheng-Jie Liu;Jia-Chen Zhuang

In this study, the efficiency enhancement of InGaP/GaAs/Ge solar cell was demonstrated using an TiO2/Al2O3 double-layer anti-reflection coating with (and without) various diameters of indium nanoparticles (In-NPs) embedded in TiO2 layer. The best increasing in efficiency of 17.06% was obtained by using the In-NPs of 23 nm in diameter.


Photovoltaic Technology

Photovoltaic Technology IV
Friday, Dec. 3, 2021  13:00-14:30
Presider: Prof. Zingway Pei, NCHU Prof. Chun-Nien Liu, NCHU
Room: 303d
13:00 - 13:30
Manuscript ID.  0736
Paper No.  2021-FRI-S0904-I001
Invited Speaker:
Nanostructured Solar Cells with combined function of Silicon and Perovskite Nanostructures

13:30 - 13:45
Manuscript ID.  0174
Paper No.  2021-FRI-S0904-O001
Yang-Zhan Lin Hydrogenated amorphous silicon oxide a-SiOx:H/a-SiOy:H superlattice p-i-n solar cells
Yeu-Long Jiang;Yan-Fen Wei;Yang-Zhan Lin

The pulse-wave modulation plasma with CO2/SiH4 gas flow ratio were used to separately deposit a 100 nm thick high energy gap (Eg) a-SiOx:H (C layer) film, a low Eg a-SiOy:H (A layer) film or a C/A superlattice (a-SiOx:H/a-SiOy:H) film at p/i or i/n interface of a p-i(a-Si:H)-n reference cell. The influence of C, A and C/A superlattice thin films at the p/i and i/n interfaces on the electric properties of p-i-n solar cells were investigated.

13:45 - 14:00
Manuscript ID.  0226
Paper No.  2021-FRI-S0904-O002
Shuo-Heng Chien Passivation effects of a-SiOx:H thin films on the silicon heterojunction solar cells
Yeu-Long Jiang;Chi-Ying Chuang;Shuo-Heng Chien

Pulse-wave modulation plasma with change the CO2/SiH4 gas ratio and RF power was used to fabricate and control the structural and optical properties of i-a-SiOx:H intrinsic passivation layer for HIT solar cells. The effects of single i-a-Si:H or i-a-SiOx:H layer, and dual i1-a-SiOx:H/i2-a-Si:H passivation layers on the performance of HIT solar cells were investigated.

14:00 - 14:15
Manuscript ID.  0548
Paper No.  2021-FRI-S0904-O003
Chin-Ping Yu Open-cavity Mach-Zehnder Interferometer Sensor Formed by Photonic Crystal Fiber and Polished Pencil-shape Single-mode Fiber
Pei-Jhen Wong;Chin-Ping Yu

We propose an open-cavity Mach-Zehnder interferometer by splicing a photonic crystal fiber (PCF) with a polished pencil-shape single-mode fiber (SMF). It is shown that the gas indeed can be filled into the open cavity successfully, and the measured pressure sensitivity is -67.86pm/psi.

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14:15 - 14:30
Manuscript ID.  0168
Paper No.  2021-FRI-S0904-O004
Wei-Lun Hsu Numerical Simulation of Negative Curvature Hollow-Core Photonic Crystal Fiber
Jung-Sheng Chiang;Yu-Cheng Chuang;Jeng-Chian Lai;Wei-Lun Hsu;Nai-Hsiang Sun

The guided mode of NC-HCPCF with different core diameters, the thickness, and numbers of capillaries for capillary cladding designs by simulation are presented. The proper number of negative curvature ratios enhances the fundamental mode power and the 8-capillary cladding of NC-HCPCF is better than 5- to 7-capillary for transmission power.


Photovoltaic Technology

Poster Session I
Friday, Dec. 3, 2021  14:00-16:00
Presider: Prof. Shun-Wei Liu Ming Chi University of Technology, Taiwan, Prof. Wen-Fung Liu, FCU
Room: Corridor
Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0463
Paper No.  2021-FRI-P0901-P001
Tong-Ke Lin Silicon Heterojunction Solar Cells Using Thermally -Evaporated Molybdenum Oxides as Dopant-Free Hole Selective Contact
Ting-Yun Yang;Chien-Chi Huang;Shih-Wei Chen;Tong-Ke Lin;Peichen Yu

To improve the parasitic absorption problem, we tried to change the wide band gap material molybdenum oxide (MoOx) to the silicon heterojunction (SHJ) solar cell structure, thereby replacing the a-Si in the p-type doped amorphous silicon a-Si:H(p) of the layer. We compared the optical properties of MoO¬x with different thickness settings, and proved that MoOx has good carrier transport effect by changing the metal electrode at 180°C hot plate annealing temperatures. Preliminary results show that the Si HJT cell with a 15 nm-thick MoOx layer achieves a power conversion efficiency (PCE) of 21.2% and an open-circuit voltage (Voc) of 640.6mV.

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Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0223
Paper No.  2021-FRI-P0901-P002
Hung Yu Chia Cost-effective high-resolution wide-field Fourier ptychographic microscopy
Hung Yu Chia

There is a fundamental trade-off between the resolution and the field of view in traditional imaging systems. Recently, Fourier ptychography (FP) based image reconstruction has shown excellent capability to produce sub-micron resolution images from wide field microscope without any moving parts. In this work, we demonstrate the possibility of generating high-resolution microscopic images using cost-effective consumer parts. The imaging system consists of an evolution board of raspberry Pi4, LED array module and a 5-mega pixels camera. By using FP to reconstruct the captured image at different angles, we demonstrate transforming low-resolution images to high-resolution giga-pixel images with large field-of-view.


Manuscript ID.  0170
Paper No.  2021-FRI-P0901-P003
Meng-Hsueh Kuo A stable small molecule organic photovoltaic with Alq3:C60 buffer layer
Meng-Hsueh Kuo

In this work, we propose an electron-selective buffer layer (ES-BL) in fullerene-based organic photovoltaics (OPVs) by blending fullerene (C60) with a tris(8-hydroxyquinoline)aluminum(III) (Alq3). Compared to neat Alq3 for exciton blocking purposes, the proposed Alq3:C60 buffer layer shows higher power conversion efficiency (PCE) of 1.15%. In addition, insignificant PCE loss is observed after more than 1 day of continuous operation under AM1.5G solar illumination at 100 mW/cm2 by replacing BCP (τ84 ~25 hours) with Alq3:C60 buffer layer (τ98 ~25 hours). This can be attributed to the suppression of C60 photo-oligomerization process by the robust Alq3 molecule.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0384
Paper No.  2021-FRI-P0901-P004
Lee Yong Yuan Improvement of the reliability of organic solar cells by inserting the electron-transporting material
Lee Yong Yuan

In this work, we propose a charge carrier selective structure by inserting an electron-transporting material (Bathophenanthroline; BPhen) between MoOx and the photoactive blend. The device shows an improved hole extraction process with a 10% enhancement of Jsc. In addition, the device shows an extended operational lifetime of 160 hours after 10% decay of the initial PCE, which is much durable compared to the one using standard MoOx neat film as hole extraction layer.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0227
Paper No.  2021-FRI-P0901-P005
Man-Ying Wang XPS depth profiling of Al2O3 passivation layer of photovoltaic with different annealing temperatures
Man-Ying Wang;Pei-Chen Huang;Yi-Kai Wang;Yu-Chun Huang;Jun-Xian Li;Jui-Fu Tang;Hsun-Yun Chang;Wei-Chun Lin

X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the composition and chemical states of films in semiconductor industry. The purpose of adding Al2O3 passivation layer is to facilitate carrier lifetime and passivate intrinsic defects of photovoltaics. In this study, TEM was used to confirm the thickness of Al2O3 layer and SiOx interlayer formed by different annealing temperatures. To verify the chemical state of SiOx layer, XPS combined with Ar+ sputtering was used to reconstruct the elemental distribution of Si/SiOx/Al2O3 samples in different depths. The results show that the thickness of the SiOx layer is increasing with higher annealing temperature.

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Manuscript ID.  0414
Paper No.  2021-FRI-P0901-P006
Yi-Ching Chang A Hot Fiber Fabry–Pérot Interferometer by Laser Heating
Chi-Shiang Chen;Hsu-Hui Chou;Chien-Hsing Chen;Yi-Ching Chang;Cheng-Ling Lee

This study proposed a chemical-modified polymer air-gap fiber Fabry–Pérot interferometer (PAGFFPI) with coating an Ag-film by silver mirror reaction (SMR) for achieving hot-wire anemometry (HWA). Experimental results demonstrate that the sensor can be effectively heated by LD with high responses and good sensitivity.

Award Candidate (Paper Competition)
Manuscript ID.  0210
Paper No.  2021-FRI-P0901-P007
Wei-Yuan Wang Near-field study of uniform current distribution vertical structure LED at different wavelengths
Wei-Yuan Wang

A new vertical structure LED is proposed recently to solve the uneven current spreading density problem of Y-shaped vertical structure LED. In this paper, we investigate current density and near-field light intensity distribution of the Y-shaped and the new vertical structure LED at different wavelengths. Five wavelengths are chosen for comparison: deep ultraviolet light (365nm~375nm), ultraviolet light (380nm~400nm), violet light (420nm~430nm), blue light (440nm~460nm), and green light (520nm~530nm). We find that the current distributions are distinct for different wavelengths. The new structure exhibits superior current spreading and light emitting uniformity at all wavelengths.

Award Candidate (Paper Competition) Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0221
Paper No.  2021-FRI-P0901-P008
Pei-Chen Huang Stability investigation via surface analysis techniques on mixed halide perovskite films under heat exposure
Pei-Chen Huang;Man-Ying Wang;Jui-Fu Tang;Yi-Sheng Tsai;Jun-Xian Li;Yi-Kai Wang;Wei-Chun Lin

Organic-inorganic hybrid perovskites have become one of the most promising photoelectric materials for generating solar cells in recent years. However, their instability to environment remains a tough issue. Thermal degradation is one of the most important problems hindering their commercialization. This study investigates three kinds of perovskite films (MAPbI3, MAPbI3-xBrx, MAPbI3-xClx), conducting thermal induced stability experiments. Several surface analysis techniques, such as X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometer (TOF-SIMS) are used to provide a deeper understanding into materials decomposition. In summary, it is found that bromine-doped perovskite films have better stability upon exposure to heat.

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Award Candidate (Paper Competition)
Manuscript ID.  0591
Paper No.  2021-FRI-P0901-P009
Yu-Tse Tsai Analysis of Tungsten Absorber for Solar Thermophotovoltaics via FDTD simulation
Yu-Tse Tsai;Snow H Tseng

By finite-difference time-domain (FDTD) simulations, we design tungsten absorber for Solar Thermophotovoltaics (STPV) system. In this study, periodic pyramid structures with Tungsten material modeled by complex-conjugate multiple-pole model and convolutional
perfectly matched layers (CPML) are adapted to simulate the optimal structure with almost unity absorptivity in solar spectrum region.

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Award Candidate (Applied Optoelectronics Competition)
Manuscript ID.  0284
Paper No.  2021-FRI-P0901-P010
Min-Yi Jiang Effect of Perovskite Layer Annealed at Different Thermal Temperatures on Perovskite Solar Cell
Min-Yi Jiang;Hsueh-Tao Chou;Zi-Heng Lin;Guan-Yu Lin

In this study, perovskite solar cells (PSCs) based on three different annealing temperatures are fabricated in a low humidity glove box by using two-step method. With the improvement of surface morphology and crystallinity of perovskite layer, an optimal photoelectric conversion efficiency (PCE) of 12.19 % is achieved.

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Manuscript ID.  0118
Paper No.  2021-FRI-P0901-P011
Chong-Wei Chen Fiber Bragg Grating Tire Pressure Sensor
Chong-Wei Chen;Cheng-Yu Lin;Wen-Fung Liu;Jui Chi Yao

This paper proposed a tire pressure sensor based on fiber Bragg grating (FBG). The operating mechanism is that the tire pressure squeezes the polymer of sensor to stretch the grating and to cause the grating center wavelength to be shifted. By changing the size of the pressure-receiving opening, the sensitivity can be improved.


Manuscript ID.  0373
Paper No.  2021-FRI-P0901-P012
Yu-Chun Chang Hydrophone Based on Fiber Bragg Gratings
Cheng-Hsuan Tsai;Yu-Chun Chang;Wen-Fung Liu;Yu-Chung Chang

We proposed a hydrophone based on a fiber Bragg grating for detecting acoustic-wave signals of underwater. The hydrophone consists of fiber Bragg grating, silicon thin-film, and 3D print structure.


Photovoltaic Technology

Poster Session II
Saturday, Dec. 4, 2021  09:30-11:30
Room: Corridor

Manuscript ID.  0643
Paper No.  2021-SAT-P0902-P001
Cheng-Yu Lin Human Pulse Diagnosis Fiber Sensors
Cheng-Yu Lin;Wen-Fung Liu

In this article, we proposed the novel human-pulse fiber sensors with the plane type and side-pressure packaging type for the diagnosis of human-pulse. The affordable and compact structure shows that it can be applied for detecting human pulse signals.


Manuscript ID.  0108
Paper No.  2021-SAT-P0902-P002
Chih-Chieh Li Analysis of two parameters sensing by using surface plasmon resonance based on Silicon core fiber
Chih-Chieh Li;Xiao-Hui Wang;I-Jou Lin;Hiroki Kishikawa;Shien-Kuei Liaw;Wen-Fung Liu;Yi-Lin Yu

In this article, we proposed and simulated a Silicon core fiber incorporated with a fused silica grating shaped design. The simulation results show this design could be applied for detecting temperature and refractive index simultaneously, and sensitivity were up to 1.6 nm/oC and 1.733 µm/RIU, respectively.


Manuscript ID.  0364
Paper No.  2021-SAT-P0902-P003
Tsung-Chun Huang Study on Combustion Processed Nickel Oxide and Zinc Doped Nickel Oxide Thin Films as Hole Transport Layers for Perovskite Solar Cells
Ponmudi Selvan T;Chien-Chih Lai;Tsung-Chun Huang;Chih-Hung Tsai

In this study, NiOx thin film was prepared by the solution-combustion process at 250 °C, a temperature lower than the actual reaction temperature. The maximum power conversion efficiency of inverted perovskite solar cells made with pristine NiOx and 5% Zn-NiOx as the HTL was 13.62% and 14.87%, respectively.

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Manuscript ID.  0535
Paper No.  2021-SAT-P0902-P004
Yu-Chen Liu Surface Modification Using Quantum Dots CsPbI3 to Improve the Efficiency of Perovskite Solar Cells
Yu-Chen Liu;Hong-Ye Lai;Ching-Ho Tien;Lung-Chien Chen

The perovskite quantum dot QD-CsPbI3 was synthesized by the hot injection
method. The perovskite film can be processed with quantum dot to make the better film
crystallinity. By applying the QD-CsPbI3, the reduction of the
Cs0.05FA0.81MA0.14PbBr0.14I2.86 perovskite film interface defects improved the efficiency of
solar cells.

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Manuscript ID.  0441
Paper No.  2021-SAT-P0902-P005
Chen-Fu Lin Synthesis and Material characteristics of Multi-dimensional Pseudohalide perovskite by Low pressure Vapor-Assisted Solution Process
Chen-Fu Lin;Peter Chen

In this study, the pseudohalide perovskite in 2D/3D hybrid perovskite films were made by the low-pressure vapor-assisted solution process (LP-VASP). Using the excessive PEAI doped in the precursor, and the halogen replaced I ions replaced with SCN ions. It was found that SCN ions can inhibit the appetite growth of 3D perovskite and existed in the bottom of perovskite film.


Manuscript ID.  0537
Paper No.  2021-SAT-P0902-P006
Hai-Xing Chang Study on Different Doping Ratio of The Cesium Chloride and Formamidinium Iodide on Perovskite Solar Cell
Hai-Xing Chang;Wei-Chen Lin;Ching-Ho Tien;Lung-Chien Chen

We devise a different doping ratio of the cesium chloride and formamidinium iodide on FAPbI3. Cesium (Cs) can stabilize the α phase of perovskite. Consequently, the best power conversion efficiency of perovskite solar cells has increased from 14.6% to 18.9%.

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Manuscript ID.  0646
Paper No.  2021-SAT-P0902-P007
Chien-Hsing Chen Fiber-optic interferometer sensor by femtosecond laser micromachining
Chien-Hsing Chen;Chang-Yue Chiang;Yang Lu;Cheng-Ling Lee

This study used an femtosecond laser machining system developed two types of fiber-optic interferometers with a sensing function. The refractive index sensor sensitivity of the fiber-optic Mach-Zehnder interferometer was 35.1nm/RIU. The fiber-optic Fabry-Perot interferometer of two microholes only take 0.005 s that is much faster than that by one microhole on the hollow code fiber, and has the potential capability for on-site, in-vivo, and remote sensing, and has the potential use for disposable sensors.


Manuscript ID.  0275
Paper No.  2021-SAT-P0902-P008
Min-Yi Jiang Localized Surface Plasmon Resonance Effect of Silica Shell/Gold Core Nanoparticles Modified TiO2 as Mesoporous Layer for Perovskite Solar Cells
Hsueh-Tao Chou;Tien-Ming Wu;Guan-Yu Lin;Yao-Chieh Wu;Min-Yi Jiang;Kuan-Hua Chiang;Yong-Sen Liao

In this research, influence of the reaction time of MAI and PbI2 for forming the perovskite crystals to the current density of perovskite solar cells (PSCs) is analyzed. Next, the mesoporous layer is modified with Au@SiO2 of 42.33 nm, the PCE is further increased from 14.11 % to 16.50 %.


Manuscript ID.  0277
Paper No.  2021-SAT-P0902-P009
Bo-Rong Jheng Utilization of Nanoporous NiOx Layer and NiOx Thin Film as the HTL in Perovskite Solar Cells for Comparison
Zhang-Wei Huang;Bo-Rong Jheng;Chih-Yu Chang;You-Wei Wu;Sheng-Hsiung Yang

The nanoporous nickel oxide (NiOx) layer as well as NiOx thin film was prepared via chemical bath deposition as the hole transport layer (HTL) in inverted perovskite solar cells (PSCs). The sponge-like structure of the nanoporous NiOx helps to grow pinhole-free perovskite film with larger grain size compare to the NiOx thin film. The inverted PSCs based on the nanoporous NiOx layer showed the highest efficiency of 13.43% and negligible hysteresis that was better than the one using the NiOx thin film as the HTL. Moreover, the PSCs sustained 80% of their initial efficiency after 50 days storage.

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Manuscript ID.  0153
Paper No.  2021-SAT-P0902-P010
Zheng-Yue Jian Study of Metal Doped Nickel Oxide Nanoparticles as Hole Transporting Layer for perovskite solar cells
Zheng-Yue Jian;Zheng-Yue Jian

Perovskite solar cells (PSCs) with inverted structure generally present higher stability and negligible hysteresis effect. One of the most important parts of the inverted photovoltaic is the hole transporting layer (HTL). In this study, we choose metal doped NiOx as HTL material and synthesized it by nanoparticles method, which does not need anneal process. Moreover, NiOx nanoparticles does not react with perovskite layer and the energy level alignment of NiOx thin film is more favorable with active-layer. In this report, NiOx based PSCs with optimized metal doping ratio has reached 14.33% conversion efficiency as compared to 12.59% without metal doping.

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Manuscript ID.  0478
Paper No.  2021-SAT-P0902-P011
Peter Chen Visualization of the Ion Migration: Probe & Set Operation
Peter Chen

All inorganic perovskite has developed as a candidate for photovoltaic application due to its decent thermal stability. Nevertheless, the ion migration remains an issue due to the instability of mixed halide perovskite under illumination with the presence of phase segregation. Here we present a technique to investigate the light-induced ion migration within the CsPbIBr2: Probe and Set operation. By tuning the power and the duration of the laser illumination, we visualize the phase segregation and its reversal via photoluminescence measurement.


Manuscript ID.  0192
Paper No.  2021-SAT-P0902-P012
YuTang Lin Inverse correlation of photoluminescence and photocurrent in monolayer WS2/Graphene van der Waals heterostructures photodetector
YuTang Lin;KuoPing Chen;MinWen Yu

Tungsten disulfide (WS2) and graphene are two-dimensional (2D) materials of typical features. They process the ability to modulate and communicate signals between electronics and photonics in an extreme lateral dimension. However, the characteristics of primitive graphene photodetector has weak photo responsivity. In this research, via the WS-2/graphene heterostructures to induce more electrons by internal electric fields and achieve the high photoresponsivity (~5.7A/W). Finally, the correlation between photoluminescence (PL) and photocurrent is analyzed.


Manuscript ID.  0363
Paper No.  2021-SAT-P0902-P013
Fu-Fan Shih Investigation of Sol-Gel Processed Nickel Oxide Thin Film as Hole Transport Layers for Perovskite Solar Cells
Ponmudi Selvan T;Ching-Wei Lee;Chien-Chih Lai;Fu-Fan Shih;Chih-Hung Tsai

In this study, we investigated the effect of annealing temperature on NiOx thin films prepared through sol-gel processing from two nickel precursors: nickel acetate tetrahydrate and nickel acetylacetonate. The results showed that the NiOx films annealed at 400 °C exhibited the best electrode properties and achieved the highest device efficiency.

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