DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Geon Yeong | ko |
dc.contributor.author | Kim, Shinho | ko |
dc.contributor.author | Choi, Jinyoung | ko |
dc.contributor.author | Kim, Moohyun | ko |
dc.contributor.author | Lim, Hunhee | ko |
dc.contributor.author | Nam, Tae Won | ko |
dc.contributor.author | Choi, Wonseok | ko |
dc.contributor.author | Cho, Eugene N. | ko |
dc.contributor.author | Han, Hyeuk Jin | ko |
dc.contributor.author | Lee, ChulHee | ko |
dc.contributor.author | Kim, Jong Chan | ko |
dc.contributor.author | Jeong, Hu Young | ko |
dc.contributor.author | Choi, Sung-Yool | ko |
dc.contributor.author | Jang, Min Seok | ko |
dc.contributor.author | Jeon, Duk Young | ko |
dc.contributor.author | Jung, Yeon Sik | ko |
dc.date.accessioned | 2019-10-31T08:20:52Z | - |
dc.date.available | 2019-10-31T08:20:52Z | - |
dc.date.created | 2019-10-31 | - |
dc.date.created | 2019-10-31 | - |
dc.date.created | 2019-10-31 | - |
dc.date.issued | 2019-09 | - |
dc.identifier.citation | NANO LETTERS, v.19, no.10, pp.6827 - 6838 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | http://hdl.handle.net/10203/268103 | - |
dc.description.abstract | Achieving high emission efficiency in solid-state quantum dots (QDs) is an essential requirement for high-performance QD optoelectronics. However, most QD films suffer from insufficient excitation and light extraction efficiencies, along with nonradiative energy transfer between closely adjacent QDs. Herein, we suggest a highly effective strategy to enhance the photoluminescence (PL) of QD composite films through an assembly of QDs and poly-(styrene-b-4-vinylpyridine)) (PS-b-P4VP) block copolymer (BCP). A BCP matrix casted under controlled humidity provides multiscale phase-separation features based on (1) submicrometer-scale spinodal decomposition between polymer-rich and water-rich phases and (2) sub-10 nm-scale microphase separation between polymer blocks. The BCP-QD composite containing bicontinuous random pores achieves significant enhancement of both light absorption and extraction efficiencies via effective random light scattering. Moreover, the microphase-separated morphology substantially reduces the Forster resonance energy transfer efficiency from 53% (pure QD film) to 22% (BCP-QD composite), collectively achieving an unprecedented 21-fold enhanced PL over a broad spectral range. | - |
dc.language | English | - |
dc.publisher | AMERICAN CHEMICAL SOCIETY | - |
dc.title | Order-of-Magnitude, Broadband-Enhanced Light Emission from Quantum Dots Assembled in Multiscale Phase-Separated Block Copolymers | - |
dc.type | Article | - |
dc.identifier.wosid | 000490353500015 | - |
dc.identifier.scopusid | 2-s2.0-85072715648 | - |
dc.type.rims | ART | - |
dc.citation.volume | 19 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 6827 | - |
dc.citation.endingpage | 6838 | - |
dc.citation.publicationname | NANO LETTERS | - |
dc.identifier.doi | 10.1021/acs.nanolett.9b01941 | - |
dc.contributor.localauthor | Choi, Sung-Yool | - |
dc.contributor.localauthor | Jang, Min Seok | - |
dc.contributor.localauthor | Jeon, Duk Young | - |
dc.contributor.localauthor | Jung, Yeon Sik | - |
dc.contributor.nonIdAuthor | Choi, Jinyoung | - |
dc.contributor.nonIdAuthor | Cho, Eugene N. | - |
dc.contributor.nonIdAuthor | Kim, Jong Chan | - |
dc.contributor.nonIdAuthor | Jeong, Hu Young | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Quantum dot | - |
dc.subject.keywordAuthor | Block copolymer | - |
dc.subject.keywordAuthor | Nanocomposite | - |
dc.subject.keywordAuthor | Photoluminescence | - |
dc.subject.keywordAuthor | Vapor-induced phase separation | - |
dc.subject.keywordPlus | EMITTING-DIODES | - |
dc.subject.keywordPlus | SHELL THICKNESS | - |
dc.subject.keywordPlus | ENERGY-TRANSFER | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | EXCITATION | - |
dc.subject.keywordPlus | RESONANCE | - |
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