Improvement of Dynamic Performance and Detectivity in Near-Infrared Colloidal Quantum Dot Photodetectors by Incorporating Conjugated Polymers
DC Field | Value | Language |
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dc.contributor.author | Kim, Myeong In | - |
dc.contributor.author | Kang, Jinhyeon | - |
dc.contributor.author | Park, Jaehee | - |
dc.contributor.author | Jeong, WonJo | - |
dc.contributor.author | Kim, Junho | - |
dc.contributor.author | Yim, Sanggyu | - |
dc.contributor.author | Jung, In Hwan | - |
dc.date.accessioned | 2022-12-20T05:11:45Z | - |
dc.date.available | 2022-12-20T05:11:45Z | - |
dc.date.created | 2022-12-07 | - |
dc.date.issued | 2022-11 | - |
dc.identifier.issn | 1420-3049 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172885 | - |
dc.description.abstract | Colloidal quantum dots (CQDs) have a unique advantage in realizing near-infrared (NIR) photodetection since their optical properties are readily tuned by the particle size, but CQD-based photodetectors (QPDs) presently show a high dark current density (J(d)) and insufficient dynamic characteristics. To overcome these two problems, we synthesized and introduced two types of conjugated polymers (CPs) by replacing the p-type CQD layer in the QPDs. The low dielectric constant and insulating properties of CPs under dark conditions effectively suppressed the J(d) in the QPDs. In addition, the energy-level alignment and high-hole mobility of the CPs facilitated hole transport. Therefore, both the responsivity and specific detectivity were highly enhanced in the CP-based QPDs. Notably, the dynamic characteristics of the QPDs, such as the -3 dB cut-off frequency and rising/falling response times, were significantly improved in the CP-based QPDs owing to the sizable molecular ordering and fast hole transport of the CP in the film state as well as the low trap density, well-aligned energy levels, and good interfacial contact in the CP-based devices. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.title | Improvement of Dynamic Performance and Detectivity in Near-Infrared Colloidal Quantum Dot Photodetectors by Incorporating Conjugated Polymers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Jung, In Hwan | - |
dc.identifier.doi | 10.3390/molecules27217660 | - |
dc.identifier.scopusid | 2-s2.0-85141639116 | - |
dc.identifier.wosid | 000883993000001 | - |
dc.identifier.bibliographicCitation | MOLECULES, v.27, no.21, pp.1 - 13 | - |
dc.relation.isPartOf | MOLECULES | - |
dc.citation.title | MOLECULES | - |
dc.citation.volume | 27 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 13 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Biochemistry & Molecular Biology | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Biochemistry & Molecular Biology | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordAuthor | quantum-dot photodetector | - |
dc.subject.keywordAuthor | conjugated polymers | - |
dc.subject.keywordAuthor | hole-transporting polymers | - |
dc.subject.keywordAuthor | dark current suppression | - |
dc.subject.keywordAuthor | dynamic properties | - |
dc.subject.keywordAuthor | near-infrared detection | - |
dc.identifier.url | https://www.mdpi.com/1420-3049/27/21/7660 | - |
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