Photomultiplication-Type Organic Photodetectors with Fast Response Enabled by the Controlled Charge Trapping Dynamics of Quantum Dot Interlayer
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Se Gyo | - |
dc.contributor.author | Lee, Hansol | - |
dc.contributor.author | Choi, Wookjin | - |
dc.contributor.author | Lee, Dongki | - |
dc.contributor.author | Kim, Seunghyun | - |
dc.contributor.author | Sung, Yunmo | - |
dc.contributor.author | Kim, Sungjee | - |
dc.contributor.author | Cho, Kilwon | - |
dc.date.accessioned | 2022-06-20T07:40:13Z | - |
dc.date.available | 2022-06-20T07:40:13Z | - |
dc.date.created | 2022-06-20 | - |
dc.date.issued | 2021-08 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/84666 | - |
dc.description.abstract | A novel photomultiplication (PM)-type organic photodiode (OPD) that responds much faster (109 kHz bandwidth) than conventional PM-type OPDs is demonstrated. This fast response is achieved by introducing quantum dots (QDs) as a PM-inducing interlayer at the interface between the electrode and the photoactive layer. When the device is illuminated, the photogenerated electrons within the photoactive layer are rapidly transferred and trapped in the trap states of the QD interlayer. The electron trapping subsequently leads to charging of the QD and a consequent shift of the QD energy levels, thereby inducing hole injection from the electrode. This PM mechanism is distinct from that of conventional PM-type OPDs, whose PM usually requires a long time to induce hole (or electron) injection because of the slow transport and accumulation of electrons (or holes) within the photoactive layer. Because of its PM mechanism, the proposed QD-interlayer PM-type OPD achieves high bandwidth and high specific detectivity. In addition, it is demonstrated that the response speed of the proposed device is closely related to the charge trapping/detrapping dynamics of the QDs. This work not only offers a new concept in the design of fast-responding PM-type OPDs but also provides comprehensive understanding of the underlying device physics. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.relation.isPartOf | ADVANCED FUNCTIONAL MATERIALS | - |
dc.title | Photomultiplication-Type Organic Photodetectors with Fast Response Enabled by the Controlled Charge Trapping Dynamics of Quantum Dot Interlayer | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000655456900001 | - |
dc.identifier.doi | 10.1002/adfm.202102087 | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.31, no.31 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85106684981 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 31 | - |
dc.citation.number | 31 | - |
dc.contributor.affiliatedAuthor | Lee, Hansol | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | charge trapping | - |
dc.subject.keywordAuthor | core& | - |
dc.subject.keywordAuthor | #8211 | - |
dc.subject.keywordAuthor | shell quantum dots | - |
dc.subject.keywordAuthor | organic photodetectors | - |
dc.subject.keywordAuthor | photomultiplication | - |
dc.subject.keywordAuthor | response speed | - |
dc.subject.keywordPlus | POLYMER | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | DECAY | - |
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 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.