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A Flexible Nanocrystal Photovoltaic Ultraviolet Photodetector on a Plant Membrane
Author(s) -
Wu Jingda,
Lin Lih Y.
Publication year - 2015
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201500198
Subject(s) - materials science , quantum dot , photodetector , optoelectronics , nanocrystal , ultraviolet , nanotechnology , band gap , nanomaterials , nanorod , quantum efficiency , electronics , chemistry
A flexible UV photodetector is created with a reed membrane as the interspacing layer embedded with ZnO nanocrystals. The membrane's porous nature facilitates the adhesion of active materials and light scattering, and improves device performance. A sandwich structure with a vertical Schottky junction is applied to increase the device's response speed, achieving a sub‐second response time, as well as a maximum external quantum efficiency of over 3%. The device also shows a slight performance increase under bending.