Prof. Wallace C. H. Choy
Professor at Univ of Hong Kong
SPIE Involvement:
Author
Publications (21)

Proceedings Article | 30 September 2024 Presentation
Proceedings Volume 13122, 131220D (2024) https://doi.org/10.1117/12.3028503
KEYWORDS: Perovskite, Light emitting diodes, Photodetectors, Detector arrays, Photovoltaics, Phase distribution, Crystals, Solar energy, Passivation, Optoelectronic devices

Proceedings Article | 3 October 2022 Presentation + Paper
Proceedings Volume 12209, 1220903 (2022) https://doi.org/10.1117/12.2632581
KEYWORDS: Perovskite, Crystals, X-rays, Visible radiation, Sensors, X-ray detectors, Absorption, Photodetectors

Proceedings Article | 1 August 2021 Presentation
Proceedings Volume 11808, 118080X (2021) https://doi.org/10.1117/12.2595122
KEYWORDS: Perovskite, Blue light emitting diodes, External quantum efficiency, Energy transfer, Light emitting diodes, Energy efficiency, Electroluminescence, Crystals

Proceedings Article | 18 September 2018 Presentation
Proceedings Volume 10737, 1073708 (2018) https://doi.org/10.1117/12.2320852
KEYWORDS: Nanocomposites, Organic photovoltaics, Solar cells, Optoelectronics, Organic electronics, P-type semiconductors, Semiconductors, Fullerenes, Lithium

Proceedings Article | 19 September 2017 Presentation
Proceedings Volume 10363, 103630S (2017) https://doi.org/10.1117/12.2272092
KEYWORDS: Solar cells, Annealing, Nanostructuring, Nanolithography, Chlorine, Process control, Crystals, Fabrication, Photovoltaics

Proceedings Article | 9 September 2015 Paper
Fengxian Xie, Di Zhang, Wallace Choy
Proceedings Volume 9567, 95670L (2015) https://doi.org/10.1117/12.2187973
KEYWORDS: Annealing, Solar cells, Crystals, Chlorine, Lead, Photovoltaics, Diffusion, Thin films, Chemical species, Perovskite

Proceedings Article | 1 September 2015 Paper
Proceedings Volume 9608, 96081A (2015) https://doi.org/10.1117/12.2187190
KEYWORDS: Organic semiconductors, Nanostructures, Absorption, Solar cells, Sun, Optical sensing, Electron transport, Organic photovoltaics, Plasmonics, Semiconductors

Proceedings Article | 27 September 2013 Paper
Proceedings Volume 8829, 88291I (2013) https://doi.org/10.1117/12.2023222
KEYWORDS: Organic light emitting diodes, Scattering, Light scattering, Waveguides, Photoresist materials, OLED lighting, Waveguide modes, Dispersion, Destructive interference, External quantum efficiency

Proceedings Article | 13 September 2012 Paper
Wei Sha, Wallace Choy, Weng Cho Chew
Proceedings Volume 8477, 847714 (2012) https://doi.org/10.1117/12.929498
KEYWORDS: Plasmonics, Excitons, Organic photovoltaics, Solar cells, Near field optics, Nanostructures, Polymers, Surface plasmons, Physics, Interfaces

Proceedings Article | 13 September 2012 Paper
Xiaolong Zhu, Chuihui Duan, Wallace Choy, Fengxian Xie, Chuandao Wang, Fei Huang, Yong Cao
Proceedings Volume 8477, 847710 (2012) https://doi.org/10.1117/12.929518
KEYWORDS: Absorption, Reflectivity, Organic photovoltaics, Solar cells, Optical properties, Diffraction gratings, Quantum efficiency, Refractive index, Polymers, Interfaces

Proceedings Article | 13 September 2012 Paper
Di Zhang, Wallace Choy, Hongwei Zhu
Proceedings Volume 8477, 84771D (2012) https://doi.org/10.1117/12.929505
KEYWORDS: Graphene, Gold, Organic photovoltaics, Solar cells, Remote sensing, Electrodes, Oxygen, Resistance, Ultraviolet radiation, Interfaces

Proceedings Article | 13 September 2012 Paper
Wallace Choy, Charlie Wang, Dixon Fung, Wei Sha, Feng-Xian Xie
Proceedings Volume 8477, 847713 (2012) https://doi.org/10.1117/12.929495
KEYWORDS: Gold, Polymers, Absorption, Organic photovoltaics, Control systems, Nanoparticles, Solar cells, Plasmonics, Resistance, Remote sensing

Proceedings Article | 16 April 2008 Paper
Proceedings Volume 6999, 69992R (2008) https://doi.org/10.1117/12.779449
KEYWORDS: Organic light emitting diodes, Electrodes, Aluminum, Gold, Electroluminescence, Thin films, Optical microcavities, Excitons, Organic materials, Glasses

Proceedings Article | 9 October 2005 Paper
Wallace C. Choy, Y. J. Liang, K. N. Hui, H. H. Fong
Proceedings Volume 5937, 59371Y (2005) https://doi.org/10.1117/12.617641
KEYWORDS: Organic light emitting diodes, Aluminum, Laser induced fluorescence, Electron transport, Copper, Magnesium, Zinc, Composites, Lithium, Organic materials

Proceedings Article | 9 October 2005 Paper
Wallace C. H. Choy, K.N. Hui, Y.J. Liang, K.L. Tong, S.K. So, Louis Leung, N. J. Xiang, Gong Menglian
Proceedings Volume 5937, 59371L (2005) https://doi.org/10.1117/12.616721
KEYWORDS: Absorption, Refractive index, Organic light emitting diodes, Electron transport, Molecules, Calcium, Aluminum, Ellipsometry, Electroluminescence, Optical properties

Proceedings Article | 9 October 2005 Paper
W. C. Choy, H. H. Fong, K. N. Hui, Y. J. Liang
Proceedings Volume 5937, 593721 (2005) https://doi.org/10.1117/12.618103
KEYWORDS: Electron transport, Organic light emitting diodes, Luminous efficiency, Composites, Aluminum, Doping, Laser induced fluorescence, Crystals, Excitons, Quartz

Proceedings Article | 15 May 2001 Paper
Wallace Choy, Jian Jun He, Ming Li, Yan Feng, Emil Koteles
Proceedings Volume 4277, (2001) https://doi.org/10.1117/12.426830
KEYWORDS: Quantum wells, Optical amplifiers, Modulators, Chromium, Absorption, Ion implantation, Modulation, Annealing, Ions, Waveguides

Proceedings Article | 28 April 1999 Paper
Wallace Choy, E. Herbert Li, Bernard Weiss
Proceedings Volume 3666, (1999) https://doi.org/10.1117/12.347932
KEYWORDS: Quantum wells, Polarization, Absorption, Modulators, Optical components, Optical properties, Diffusion, Optical amplifiers, Electrons, Annealing

Proceedings Article | 26 March 1999 Paper
Wallace Choy, E. Herbert Li, Bernard Weiss
Proceedings Volume 3620, (1999) https://doi.org/10.1117/12.343756
KEYWORDS: Modulators, Quantum wells, Refractive index, Aluminum, Phase shift keying, Phase modulation, Absorption, Excitons, Modulation, Electro optical modeling

Proceedings Article | 4 December 1998 Paper
Wallace Choy, E. Herbert Li, Bernard Weiss
Proceedings Volume 3491, (1998) https://doi.org/10.1117/12.328732
KEYWORDS: Polarization, Quantum wells, Modulation, Absorption, Aluminum, Excitons, Chromium, Annealing, Diffusion, Modulators

Proceedings Article | 12 January 1998 Paper
Wallace Choy, Bernard Weiss, E. Herbert Li
Proceedings Volume 3278, (1998) https://doi.org/10.1117/12.298224
KEYWORDS: Quantum wells, Modulators, Modulation, Absorption, Refractive index, Cladding, Chromium, Excitons, Phase shift keying, Acoustics

Showing 5 of 21 publications
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