Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Jung, Hyocheol | - |
dc.contributor.author | Nguyen, Tai | - |
dc.contributor.author | Kim, Soyeon | - |
dc.contributor.author | Lee, Jae Woong | - |
dc.contributor.author | Yu, Hyeonggeun | - |
dc.contributor.author | Park, Junsung | - |
dc.contributor.author | Lim, Chanwoo | - |
dc.contributor.author | Lee, Jihoon | - |
dc.contributor.author | Kim, Do Young | - |
dc.date.accessioned | 2024-07-04T06:00:25Z | - |
dc.date.available | 2024-07-04T06:00:25Z | - |
dc.date.created | 2024-07-04 | - |
dc.date.issued | 2024-10 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | https://pubs.kist.re.kr/handle/201004/150174 | - |
dc.description.abstract | Ultraviolet (UV), visible, and near-infrared (NIR) broadband organic photodetectors are fabricated by sequential solution-based thin film coatings of a polymer electron blocking layer (EBL) and a polymer photoactive layer. To avoid damage to a preceding polymer EBL during a subsequent solution-based film coating of a polymer photoactive layer due to lack of solvent orthogonality, 2-(((4-azido-2,3,5,6-tetrafluorobenzoyl)oxy)methyl)-2-ethylpropane-1,3-diyl bis(4-azido-2,3,5,6-tetrafluorobenzoate) (FPA-3F) is used as a novel organic cross-linking agent activated by UV irradiation with a wavelength of 254 nm. Solution-processed poly[N,N '-bis(4-butylphenyl)-N,N '-bis(phenyl)-benzidine] (poly-TPD) films, which are cross-linked with a FPA-3F photocrosslinker, are used for a preceding polymer EBL. A ternary blend film composed of PTB7-Th, COi8DFIC, and PC71BM is used as a NIR-sensitive organic photoactive layer with strong photosensitivity in multispectral (UV-visible-NIR) wavelengths of 300-1,050 nm. Poly-TPD films are successfully cross-linked even with a very small amount of 1 wt% FPA-3F. Small amounts of FPA-3F have little detrimental effect on the electrical and optoelectronic properties of the cross-linked poly-TPD EBL. Finally, organic NIR photodetectors with a poly-TPD EBL cross-linked by the small addition of FPA-3F (1 wt%) show the detectivity values higher than 1 x 1012 Jones for the entire UV-visible-NIR wavelengths from 300 nm to 1050 nm, and the maximum detectivity values of 1.41 x 1013 Jones and 8.90 x 1012 Jones at the NIR wavelengths of 900 and 1000 nm, respectively. An organic NIR photodetector is successfully fabricated using a cross-linked poly[N,N '-bis(4-butylphenyl)-N,N '-bis(phenyl)-benzidine] electron blocking layer (poly-TPD EBL) assisted by a novel organic photocrosslinker. The organic photodetector with crosslinked EBL shows a low dark current and shows detectivity values higher than 1 x 1012 Jones for the entire UV-visible-NIR wavelengths from 300 nm to 1050 nm. image | - |
dc.language | English | - |
dc.publisher | John Wiley & Sons Ltd. | - |
dc.title | High-Detectivity UV-Visible-NIR Broadband Polymer Photodetector with Polymer Charge Blocking Layer Cross-Linked by Organic Photocrosslinker | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/adfm.202403094 | - |
dc.description.journalClass | 1 | - |
dc.identifier.bibliographicCitation | Advanced Functional Materials, v.34, no.41 | - |
dc.citation.title | Advanced Functional Materials | - |
dc.citation.volume | 34 | - |
dc.citation.number | 41 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.scopusid | 2-s2.0-85196664339 | - |
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.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.type.docType | Article; Early Access | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | DARK CURRENT | - |
dc.subject.keywordPlus | QUANTUM DOTS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | MONODISPERSE | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | ACCEPTOR | - |
dc.subject.keywordPlus | LINKING | - |
dc.subject.keywordAuthor | cross-linking | - |
dc.subject.keywordAuthor | detectivity | - |
dc.subject.keywordAuthor | electron blocking layer | - |
dc.subject.keywordAuthor | near-infrared | - |
dc.subject.keywordAuthor | organic photodetector | - |
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