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Ultrahigh Gain, Low Noise, Ultraviolet Photodetectors with Highly Aligned Organic Crystals
Author(s) -
Yuan Yongbo,
Huang Jinsong
Publication year - 2016
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.201500560
Subject(s) - materials science , photodetector , ultraviolet , optoelectronics , detector , silicon photomultiplier , noise (video) , high gain antenna , noise equivalent power , photomultiplier , photodiode , engineering physics , optics , computer science , physics , scintillator , responsivity , artificial intelligence , image (mathematics)
An organic phototransistor with an ultrahigh gain of 1.1 × 10 7 is demonstrated, which employs a highly aligned dioctylbenzothienobenzothiophene (C8‐BTBT) polycrystalline film as the photoactive layer. This high photodetecting gain reaches the parity of photomultiplier tubes but with tens of times smaller driving voltage. This low noise detector has a noise equivalent power of 14 pW cm −2 .