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DC Field | Value | Language |
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dc.citation.startPage | 2404597 | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.contributor.author | Kim, Myeong In | - |
dc.contributor.author | Lee, Soonyong | - |
dc.contributor.author | Kang, Jinhyeon | - |
dc.contributor.author | Kim, Jaehyeong | - |
dc.contributor.author | Wu, Ziang | - |
dc.contributor.author | Won, Jong Ho | - |
dc.contributor.author | Baek, Seyeon | - |
dc.contributor.author | Chung, Dae Sung | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Jung, In Hwan | - |
dc.contributor.author | Woo, Han Young | - |
dc.date.accessioned | 2024-08-09T15:35:08Z | - |
dc.date.available | 2024-08-09T15:35:08Z | - |
dc.date.created | 2024-08-08 | - |
dc.date.issued | 2024-07 | - |
dc.description.abstract | Photomultiplication (PM)-type organic photodetectors (OPDs), which typically form a homogeneous distribution (HD) of n-type dopants in a p-type polymer host (HD PM-type OPDs), have achieved a breakthrough in device responsivity by surpassing a theoretical limit of external quantum efficiency (EQE). However, they face limitations in higher dark current and slower dynamic characteristics compared to p-n heterojunction (p-n HJ) OPDs due to inherent long lifetime of trapped electrons. To overcome this, a new PM-type OPD is developed that demonstrates ultrafast dynamic properties through a vertical phase separation (VPS) strategy between the p-type polymer and n-type acceptor, referred to as VPS PM-type OPDs. Notably, VPS PM-type OPDs show three orders of magnitude increase in -3 dB cut-off frequency (120 kHz) and over a 200-fold faster response time (rising time = 4.8 mu s, falling time = 8.3 mu s) compared to HD PM-type OPDs, while maintaining high EQE of 1121% and specific detectivity of 2.53 x 10(13) Jones at -10 V. The VPS PM-type OPD represents a groundbreaking advancement by demonstrating the coexistence of p-n HJ and PM modes within a single photoactive layer for the first time. This innovative approach holds the potential to enhance both static and dynamic properties of OPDs. | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, pp.2404597 | - |
dc.identifier.doi | 10.1002/adma.202404597 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.scopusid | 2-s2.0-85199194287 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/83445 | - |
dc.identifier.wosid | 001274328800001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Vertically Phase Separated Photomultiplication Organic Photodetectors with p-n Heterojunction Type UltrafastDynamic Characteristics | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | fast dynamic property | - |
dc.subject.keywordAuthor | organic photodetector | - |
dc.subject.keywordAuthor | photomultiplication | - |
dc.subject.keywordAuthor | p-n heterojunction characteristic | - |
dc.subject.keywordAuthor | vertical phase separation | - |
dc.subject.keywordPlus | DARK CURRENT | - |
dc.subject.keywordPlus | PHOTODIODES | - |
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