High-Performance Photomultiplication Photodiode with a 70 nm-Thick Active Layer Assisted by IDIC as an Efficient Molecular Sensitizer
DC Field | Value | Language |
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dc.contributor.author | Neethipathi, Deepan Kumar | - |
dc.contributor.author | Ryu, Hwa Sook | - |
dc.contributor.author | Jang, Min Su | - |
dc.contributor.author | Yoon, Seongwon | - |
dc.contributor.author | Sim, Kyu Mm | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Chung, Dae Sung | - |
dc.date.accessioned | 2021-09-01T13:47:53Z | - |
dc.date.available | 2021-09-01T13:47:53Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-06-12 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/64775 | - |
dc.description.abstract | Here, a smart strategy for decreasing the active layer thickness of the organic photodiode down to 70 nm is demonstrated by utilizing a trap-assisted photomultiplication mechanism with the optimized chemical composition. Despite the presence of a high dark current, dramatically enhanced external quantum efficiency (EQE) via photomultiplication can allow significantly reduced active layer thickness, yielding high detectivity comparable to that of conventional Si. To achieve this, a spatially confined and electrically isolated optical sensitizer, 2,2'-((2Z,2'Z)-((4,4,9,9-tetrahexyl-4,9-dihydro-s-indaceno [1,2-b:5,6-b'] dithiophene-2,7-diyl)bis(methanylylidene))bis (3-oxo-2,3-dihydro-1H-indene-2,1-diylidene)) dimalononitrile (IDIC) was introduced strategically between a hole transport active layer and a cathode. A nonfullerene acceptor, IDIC, turned out to be a much more efficient sensitizer than the conventional fullerene-based acceptors, as confirmed by the effective lowering of the Schottky barrier under illumination, as well as the highest EQE exceeding 130 000%. Due to its favorable electronic structure as well as two-dimensional molecular structure, a high detectivity over 10(12) Jones was successfully demonstrated while maintaining the active layer thickness as 70 nm. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | POLYMER PHOTODETECTORS | - |
dc.subject | HIGH-DETECTIVITY | - |
dc.subject | NANOCOMPOSITE PHOTODETECTOR | - |
dc.subject | SPECTRAL RESPONSE | - |
dc.subject | LIGHT | - |
dc.subject | GAIN | - |
dc.title | High-Performance Photomultiplication Photodiode with a 70 nm-Thick Active Layer Assisted by IDIC as an Efficient Molecular Sensitizer | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.identifier.doi | 10.1021/acsami.9b01090 | - |
dc.identifier.scopusid | 2-s2.0-85066477344 | - |
dc.identifier.wosid | 000471835800069 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.11, no.23, pp.21211 - 21217 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 11 | - |
dc.citation.number | 23 | - |
dc.citation.startPage | 21211 | - |
dc.citation.endPage | 21217 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | POLYMER PHOTODETECTORS | - |
dc.subject.keywordPlus | HIGH-DETECTIVITY | - |
dc.subject.keywordPlus | NANOCOMPOSITE PHOTODETECTOR | - |
dc.subject.keywordPlus | SPECTRAL RESPONSE | - |
dc.subject.keywordPlus | LIGHT | - |
dc.subject.keywordPlus | GAIN | - |
dc.subject.keywordAuthor | polymer photodetector | - |
dc.subject.keywordAuthor | photomultiplication | - |
dc.subject.keywordAuthor | nonfullerene acceptor | - |
dc.subject.keywordAuthor | detectivity | - |
dc.subject.keywordAuthor | external quantum efficiency | - |
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