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13:15 - 13:45
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Manuscript ID. 0735
Paper No. 2021-THU-S0901-I001
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Invited Speaker:
Junseok Heo
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MoS2/Ge van der Waals heterojunction device towards broadband photodetection
Junseok Heo
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13:45 - 14:00
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Award Candidate (Paper Competition)
Manuscript ID. 0436
Paper No. 2021-THU-S0901-O001
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| CHI WING LEE
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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.
 Preview abstract
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14:00 - 14:15
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Award Candidate (Paper Competition)
Award Candidate (Applied Optoelectronics Competition)
Manuscript ID. 0458
Paper No. 2021-THU-S0901-O002
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| Ching-Yu Hsu
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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.
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14:15 - 14:30
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Manuscript ID. 0094
Paper No. 2021-THU-S0901-O003
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| Hsiang-Chen Wang
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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.
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14:30 - 14:45
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Manuscript ID. 0116
Paper No. 2021-THU-S0901-O004
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| Zih-Hua Wang
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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.
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14:45 - 15:00
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Manuscript ID. 0091
Paper No. 2021-THU-S0901-O005
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| Wei-Lin Shu
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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.
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