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Photosensors: A Retina‐Like Dual Band Organic Photosensor Array for Filter‐Free Near‐Infrared‐to‐Memory Operations (Adv. Mater. 32/2017)
Author(s) -
Wang Hanlin,
Liu Hongtao,
Zhao Qiang,
Ni Zhenjie,
Zou Ye,
Yang Jie,
Wang Lifeng,
Sun Yanqiu,
Guo Yunlong,
Hu Wenping,
Liu Yunqi
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201770234
Subject(s) - photodetector , materials science , optoelectronics , retina , filter (signal processing) , near infrared spectroscopy , optics , computer science , computer vision , physics
Human eyes use retina photoreceptor cells to absorb and distinguish photons from different wavelengths to construct an image. To emulate this process and extend its spectral response into NIR region, Yunlong Guo, Wenping Hu, Yunqi Liu and co‐workers demonstrate a retina‐like organic photosensor with wavelength‐distinguishing and memory functionality, in article number 1701772 . Featuring an integration of photosensing elements and floating‐gate organic memory modules, the device transduces NIR into nonvolatile memory and green light into photoswitch. In doing this, the device accomodates wavelengthdependent dual modes for filter‐free NIR sensing purposes.