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24 April 2020 Color imaging sensors with perovskite alloys (Conference Presentation)
Mohammad Ismail Hossain, Wayesh Qarony, Haris Ahmad Khan, Masayuki Kozawa, Alberto Salleo, Jon Yngve Hardeberg, Hiroyuki Fujiwara, Yuen Hong Tsang, Dietmar Knipp
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Proceedings Volume 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV; 113780W (2020) https://doi.org/10.1117/12.2572385
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only
Abstract
Image sensing technology has a great impact on our daily life as well as the entire society, such as health, safety and security, communication systems, and entertainment. The conventional optical color sensors consist of side by side arranged optical filters for three basic colors (blue, green, and red). Hence, the efficiency of such optical color sensors is limited by only 33%. In this study, a vertically stacked color sensor is investigated with perovskite alloys, which has the potential to provide the efficiency approaching 100%. The proposed optical sensor will not be limited by color Moire error or color aliasing. Perovskite materials with suitable bandgaps are determined by applying the energy shifting model and the optical constants are used for further investigations. Quantum efficiencies and spectral responsivities of the described color sensors are investigated by three-dimensional electromagnetic simulations. Investigated spectral sensitivities are further analyzed for the
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Mohammad Ismail Hossain, Wayesh Qarony, Haris Ahmad Khan, Masayuki Kozawa, Alberto Salleo, Jon Yngve Hardeberg, Hiroyuki Fujiwara, Yuen Hong Tsang, and Dietmar Knipp "Color imaging sensors with perovskite alloys (Conference Presentation)", Proc. SPIE 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV, 113780W (24 April 2020); https://doi.org/10.1117/12.2572385
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KEYWORDS
Sensors
Perovskite
Optical filters
Color imaging
Image sensors
Quantum efficiency
Channel projecting optics
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