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Plastic Near‐Infrared Photodetectors Utilizing Low Band Gap Polymer
Author(s) -
Yao Y.,
Liang Y.,
Shrotriya V.,
Xiao S.,
Yu L.,
Yang Y.
Publication year - 2007
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.200602670
Subject(s) - photodetector , detector , materials science , infrared , optoelectronics , bandwidth (computing) , band gap , quantum efficiency , polymer , optics , computer science , physics , telecommunications , composite material
A new type of plastic near‐infrared photodetector utilizing low band gap polymer (see figure) is presented. When composing the detector in a donor‐acceptor type energy band structure and operating it in the reverse bias condition (less than 5 V), the photodetector shows respectable performance: external quantum efficiency exceeding 38 %, bandwidth of 4 MHz and the noise equivalent power of 3.85 × 10 –12 W Hz –1/2 at 850 nm.