Title | High-Sensitivity Organic Photodetector Based on Surface-Concentrated Nonfused Ring Electron Acceptor |
Author | |
Corresponding Author | Kyaw, Aung Ko Ko; Wang, Dong Hwan |
Publication Years | 2022-12-01
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DOI | |
Source Title | |
ISSN | 2195-1071
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Abstract | Organic photodetectors (OPDs) with high photodetection abilities are essential requirements for ubiquitous light-sensing devices. This work presents a simple nonfused ring electron acceptor (NFREA) named "TPDC-4F" having optical bandgap of 1.42 eV, being designed as an efficient OPD via thickness control and additive engineering of the photosensitive layer. The optimized photosensitive layer composed of poly[(2,6-(4,8-bis(5-(2-ethylhexyl-3-fluoro)thiophen-2-yl)-benzo[1,2-b:4,5-b ']dithiophene))-alt-(5,5-(1 ',3 '-di-2-thienyl-5 ',7 '-bis(2-ethylhexyl)benzo[1 ',2 '-c:4 ',5 '-c ']dithiophene-4,8-dione))] (PM6) donors and TPDC-4F acceptors shows a dramatically suppressed dark current of 3.55 x 10(-9) A cm(-2). Moreover, it shows improved photoelectric properties and fast charge transfer even though the photosensitive layer thickness is as large as 330 nm. OPDs based on the 330-nm-thick PM6:TPDC-4F with 1-chloronaphthalene additive exhibit a high specific detectivity (D*) of 1.27 x 10(13) cm Hz(1/2) W-1 at 800 nm and a linear dynamic range of 122 dB under a bias of -0.1 V. The device also exhibits fast rise and fall times of 6.81 and 5.41 mu s, respectively. This work demonstrates that the NFREA-based OPDs offer competitive device performance compared to those based on fused-ring electron acceptors. |
Keywords | |
URL | [Source Record] |
Indexed By | |
Language | English
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SUSTech Authorship | Corresponding
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Funding Project | Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT (MSIT)[2019R1A2C1087653]
; Technology Innovation Programs["20017439","20021915"]
; Shenzhen Science, Technology and Innovation Commission[JCYJ20220530113014033]
; Department of Education of Guangdong Province University Innovation Foundation[2021KTSCX107]
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WOS Research Area | Materials Science
; Optics
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WOS Subject | Materials Science, Multidisciplinary
; Optics
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WOS Accession No | WOS:000895871600001
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Publisher | |
Data Source | Web of Science
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Citation statistics |
Cited Times [WOS]:0
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Document Type | Journal Article |
Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/417120 |
Department | Department of Electrical and Electronic Engineering |
Affiliation | 1.Chung Ang Univ, Sch Integrat Engn, 84 Heukseok Ro, Seoul 06974, South Korea 2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, 1088 Xueyuan Blvd, Shenzhen 518055, Guangdong, Peoples R China |
Corresponding Author Affilication | Department of Electrical and Electronic Engineering |
Recommended Citation GB/T 7714 |
Kim, Min Soo,Luo, Dou,Jang, Woongsik,et al. High-Sensitivity Organic Photodetector Based on Surface-Concentrated Nonfused Ring Electron Acceptor[J]. Advanced Optical Materials,2022.
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APA |
Kim, Min Soo.,Luo, Dou.,Jang, Woongsik.,Kim, Byung Gi.,Shan, Chengwei.,...&Wang, Dong Hwan.(2022).High-Sensitivity Organic Photodetector Based on Surface-Concentrated Nonfused Ring Electron Acceptor.Advanced Optical Materials.
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MLA |
Kim, Min Soo,et al."High-Sensitivity Organic Photodetector Based on Surface-Concentrated Nonfused Ring Electron Acceptor".Advanced Optical Materials (2022).
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