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Extremely Low Dark Current, High Responsivity, All‐Polymer Photodetectors with Spectral Response from 300 nm to 1000 nm
Author(s) -
Zhou Xiaokang,
Yang Dezhi,
Ma Dongge
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.201500224
Subject(s) - responsivity , materials science , dark current , photodetector , optoelectronics , current (fluid) , polymer , composite material , electrical engineering , engineering
A low‐bandgap polymer‐based photodetector exhibiting a calculated specific detectivity greater than 1.0 × 10 13 cm Hz 0.5 W −1 at wavelengths from 350 to 870 nm is enabled by a cross‐linkable buffer layer. The device shows an extremely low dark current density of 0.64 nA cm −2 and high external quantum efficiency of 27.7% at a wavelength of 850 nm.