Photomultiplication-Type Organic Photodetectors with High EQE-Bandwidth Product by Introducing a Perovskite Quantum Dot Interlayer
DC Field | Value | Language |
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dc.contributor.author | Jeong, Minyoung | - |
dc.contributor.author | Han, Se Gyo | - |
dc.contributor.author | Sung, Woong | - |
dc.contributor.author | Kim, Seunghyun | - |
dc.contributor.author | Min, Jiwoo | - |
dc.contributor.author | Kim, Mi Kyong | - |
dc.contributor.author | Choi, Wookjin | - |
dc.contributor.author | Lee, Hansol | - |
dc.contributor.author | Lee, Dongki | - |
dc.contributor.author | Kim, Min | - |
dc.contributor.author | Cho, Kilwon | - |
dc.date.accessioned | 2023-07-10T02:40:08Z | - |
dc.date.available | 2023-07-10T02:40:08Z | - |
dc.date.issued | 2023-07 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.issn | 1616-3028 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/88411 | - |
dc.description.abstract | A photomultiplication (PM)-type organic photodetector (OPD) that exploits the ionic motion in CsPbI3 perovskite quantum dots (QDs) is demonstrated. The device uses a QD monolayer as a PM-inducing interlayer and a donor-acceptor bulk heterojunction (BHJ) layer as a photoactive layer. When the device is illuminated, negative ions in the CsPbI3 QD migrate and accumulate near the interface between the QDs and the electrode; these processes induce hole injection from the electrode and yield the PM phenomenon with an external quantum efficiency (EQE) >2000% at a 3 V applied bias. It is confirmed that the ionic motion of the CsPbI3 QDs can induce a shift in the work function of the QD/electrode interface and that the dynamics of ionic motion determines the response speed of the device. The PM OPD showed a large EQE-bandwidth product >10(6) Hz with a -3 dB frequency of 125 kHz at 3 V, which is one of the highest response speeds reported for a PM OPD. The PM-inducing strategy that exploits ionic motion of the interlayer is a potential approach to achieving high-efficiency PM OPDs. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Photomultiplication-Type Organic Photodetectors with High EQE-Bandwidth Product by Introducing a Perovskite Quantum Dot Interlayer | - |
dc.type | Article | - |
dc.identifier.wosid | 000958487500001 | - |
dc.identifier.doi | 10.1002/adfm.202300695 | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.33, no.27 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85150922122 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 33 | - |
dc.citation.number | 27 | - |
dc.type.docType | Article | - |
dc.publisher.location | 독일 | - |
dc.subject.keywordAuthor | ion migration | - |
dc.subject.keywordAuthor | organic photodetectors | - |
dc.subject.keywordAuthor | perovskite quantum dots | - |
dc.subject.keywordAuthor | photomultiplication | - |
dc.subject.keywordPlus | CHARGE ACCUMULATION | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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