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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201900763
|2 doi
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|a pubmed25n0981.xml
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|a (DE-627)NLM294531580
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|a (NLM)30828883
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|a DE-627
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|c DE-627
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|a eng
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|a Gao, Yuanhong
|e verfasserin
|4 aut
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|a A Novel Hybrid-Layered Organic Phototransistor Enables Efficient Intermolecular Charge Transfer and Carrier Transport for Ultrasensitive Photodetection
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The interfacial charge effect is crucial for high-sensitivity organic phototransistors (OPTs), but conventional layered and hybrid OPTs have a trade-off in balancing the separation, transport, and recombination of photogenerated charges, consequently impacting the device performance. Herein, a novel hybrid-layered phototransistor (HL-OPT) is reported with significantly improved photodetection performance, which takes advantages of both the charge-trapping effect (CTE) and efficient carrier transport. The HL-OPT consisting of 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) as conduction channel, C8-BTBT:[6,6]-phenyl-C61 -butyric acid methyl ester (PC61 BM) bulk heterojunction as photoactive layer, and sandwiched MoO3 interlayer as a charge-transport interlayer exhibits outstanding photodetection characteristics such as a photosensitivity (Ilight /Idark ) of 2.9 × 106 , photoresponsivity (R) of 8.6 × 103 A W-1 , detectivity (D*) of 3.4 × 1014 Jones, and external quantum efficiency of 3 × 106 % under weak light illumination of 32 µW cm-2 . The mechanism and strategy described here provide new insights into the design and optimization of high-performance OPTs spanning the ultraviolet and near infrared (NIR) range as well as fundamental issues pertaining to the electronic and photonic properties of the devices
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|a Journal Article
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|a bulk heterojunction
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|a carrier transport
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|a charge transfer
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|a hybrid-layered phototransistors
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|a organic photodetectors
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|a Yi, Ya
|e verfasserin
|4 aut
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|a Wang, Xinwei
|e verfasserin
|4 aut
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|a Meng, Hong
|e verfasserin
|4 aut
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|a Lei, Dangyuan
|e verfasserin
|4 aut
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|a Yu, Xue-Feng
|e verfasserin
|4 aut
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|a Chu, Paul K
|e verfasserin
|4 aut
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| 700 |
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|a Li, Jia
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 16 vom: 18. Apr., Seite e1900763
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:16
|g day:18
|g month:04
|g pages:e1900763
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|u http://dx.doi.org/10.1002/adma.201900763
|3 Volltext
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