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Bias‐Modulated Multicolor Discrimination Enabled by an Organic–Inorganic Hybrid Perovskite Photodetector with a p‐i‐n‐i‐p Configuration
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2020-09-11 , DOI: 10.1002/lpor.202000305 Hyeonghun Kim 1 , Woochul Kim 1 , Yusin Pak 2 , Tae Jin Yoo 1 , Hae‐Won Lee 1 , Byoung Hun Lee 1 , Sooncheol Kwon 3 , Gun Young Jung 1
Laser & Photonics Reviews ( IF 9.8 ) Pub Date : 2020-09-11 , DOI: 10.1002/lpor.202000305 Hyeonghun Kim 1 , Woochul Kim 1 , Yusin Pak 2 , Tae Jin Yoo 1 , Hae‐Won Lee 1 , Byoung Hun Lee 1 , Sooncheol Kwon 3 , Gun Young Jung 1
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Despite significant progress in color discrimination in various optoelectronic systems, most conventional technologies equipped with dissipative optical filters still suffer from high incident light loss and costly manufacturing. Herein, it is demonstrated that a novel class of organic–inorganic hybrid perovskite photodetectors based on a p‐i‐n‐i‐p structure can exhibit a switchable spectral response caused by bias modulation. A single photodetector with a p‐i‐n‐i‐p structure in which a low‐band n‐i‐p perovskite diode is vertically stacked on top of a high‐band p‐i‐n perovskite diode allows selective charge extraction from each perovskite diode by switching the bias polarity, resulting in fine discrimination of monochromatic red (R), green (G), and blue (B) light. Furthermore, a combination of two p‐i‐n‐i‐p photodetectors is successfully applied for identifying an arbitrary nonmonochromatic color (i.e., a mixed color in RGB space); thus, this approach can pave the way for developing spatially efficient and optical filter‐free imaging systems.
中文翻译：
带有ap-n-i-p配置的有机-无机混合钙钛矿光电探测器实现了偏置调制的多色识别
尽管在各种光电系统中在颜色辨别上取得了显着进展，但大多数配备有耗散滤光器的常规技术仍然遭受高入射光损耗和昂贵的制造的困扰。在此证明，基于ap-n-i-p结构的新型有机-无机杂化钙钛矿光电探测器可以表现出由偏置调制引起的可切换光谱响应。一个具有ap-n-i-p结构的光电探测器，其中将一个低频带的n-i-p钙钛矿二极管垂直堆叠在一个高频带的p-i-n钙钛矿二极管上，可以从每个中选择性地提取电荷通过切换偏置极性的钙钛矿二极管，可以很好地区分单色红（R），绿（G）和蓝（B）光。此外，两个p-i-n-i-p光电探测器的组合已成功应用于识别任意非单色（即RGB空间中的混合色）；因此，这种方法可以为开发空间高效且无光学滤波器的成像系统铺平道路。
更新日期：2020-11-12
中文翻译：
带有ap-n-i-p配置的有机-无机混合钙钛矿光电探测器实现了偏置调制的多色识别
尽管在各种光电系统中在颜色辨别上取得了显着进展，但大多数配备有耗散滤光器的常规技术仍然遭受高入射光损耗和昂贵的制造的困扰。在此证明，基于ap-n-i-p结构的新型有机-无机杂化钙钛矿光电探测器可以表现出由偏置调制引起的可切换光谱响应。一个具有ap-n-i-p结构的光电探测器，其中将一个低频带的n-i-p钙钛矿二极管垂直堆叠在一个高频带的p-i-n钙钛矿二极管上，可以从每个中选择性地提取电荷通过切换偏置极性的钙钛矿二极管，可以很好地区分单色红（R），绿（G）和蓝（B）光。此外，两个p-i-n-i-p光电探测器的组合已成功应用于识别任意非单色（即RGB空间中的混合色）；因此，这种方法可以为开发空间高效且无光学滤波器的成像系统铺平道路。
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