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- Mohammad Ismail Hossain
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong
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- Haris Ahmad Khan
- Farm Technology Group, Wageningen University & Research, Wageningen 6700 HB, The Netherlands
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- Masayuki Kozawa
- Department of Electrical, Electronic and Computer Engineering, Gifu University, Gifu 501-1193, Japan
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- Wayesh Qarony
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong
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- Alberto Salleo
- Geballe Laboratory for Advanced Materials, Department of Materials Science and Engineering, Stanford University, Stanford 94305, United States
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- Jon Yngve Hardeberg
- The Norwegian Colour and Visual Computing Laboratory, NTNU-Norwegian University of Science and Technology, Gjøvik 2815, Norway
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- Hiroyuki Fujiwara
- Department of Electrical, Electronic and Computer Engineering, Gifu University, Gifu 501-1193, Japan
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- Yuen Hong Tsang
- Department of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong
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- Dietmar Knipp
- Geballe Laboratory for Advanced Materials, Department of Materials Science and Engineering, Stanford University, Stanford 94305, United States
書誌事項
- 公開日
- 2020-09-23
- 権利情報
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- https://doi.org/10.15223/policy-029
- https://doi.org/10.15223/policy-037
- https://doi.org/10.15223/policy-045
- DOI
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- 10.1021/acsami.0c12851
- 公開者
- American Chemical Society (ACS)
この論文をさがす
説明
Color image sensing by a smartphone or digital camera employs sensor elements with an array of color filters for capturing basic blue, green, and red color information. However, the normalized optical efficiency of such color filter-based sensor elements is limited to only one-third. Optical detectors based on perovskites are described, which can overcome this limitation. An efficient color sensor design has been proposed in this study that uses a vertically stacked arrangement of perovskite diodes. As compared to the conventional color filter-based sensors, the proposed sensor structure can potentially reach normalized optical efficiency approaching 100%. In addition, the proposed sensor design does not exhibit color aliasing or color Moiré effects, which is one of the main limitations for the filter-based sensors. Furthermore, up to our knowledge, for the first time, it could be theoretically shown that both vertically arranged sensor and conventional color filter-based sensor provide almost comparable color errors. The optical properties of the perovskite materials are determined by optical measurements in combination with an energy shift model. The optics of the stacked perovskite sensors is investigated by threedimensional finite-difference timedomain simulations. Finally, colorimetric characterization was carried out to determine the color error of the sensors.
収録刊行物
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- ACS Applied Materials & Interfaces
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ACS Applied Materials & Interfaces 12 (42), 47831-47839, 2020-09-23
American Chemical Society (ACS)
