https://scholars.lib.ntu.edu.tw/handle/123456789/607050
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Zeng X | en_US |
dc.contributor.author | Huang Y.-H | en_US |
dc.contributor.author | Gong S | en_US |
dc.contributor.author | Li P | en_US |
dc.contributor.author | Lee W.-K | en_US |
dc.contributor.author | Xiao X | en_US |
dc.contributor.author | Zhang Y | en_US |
dc.contributor.author | Zhong C | en_US |
dc.contributor.author | CHUNG-CHIH WU | en_US |
dc.contributor.author | Yang C. | en_US |
dc.creator | Zeng X;Huang Y.-H;Gong S;Li P;Lee W.-K;Xiao X;Zhang Y;Zhong C;Wu C.-C;Yang C. | - |
dc.date.accessioned | 2022-04-25T06:41:59Z | - |
dc.date.available | 2022-04-25T06:41:59Z | - |
dc.date.issued | 2021 | - |
dc.identifier.issn | 20516347 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112670757&doi=10.1039%2fd1mh00613d&partnerID=40&md5=15e0b64e8144aa2792271861f456171b | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/607050 | - |
dc.description.abstract | The thermally activated delayed fluorescence (TADF) emitters based on donor-acceptor (D-A) configuration were continuously developed in the past few years, whereas an unsymmetrical TADF emitter with A-D-A′ configuration has never been reported. Herein, an A-D-A′ type TADF emitter of TRZ-SBA-NAI was firstly developed by simultaneously integrating 2-phenyl-1H-benzo[de]isoquinoline-1,3(2H)-dione and 2,4,6-triphenyl-1,3,5-triazine acceptors into a spirobiacridine donor core. Due to the coexistence of double charge-transfer excited states, TRZ-SBA-NAI displayed dual emission containing a dominant orange-red emission and an anti-Kasha's rule sky-blue emission shoulder in solution. As doped into the host matrix, TRZ-SBA-NAI only exhibited an orange-red emission, together with a high photoluminescence quantum yield of 87%. The linear molecular shape imparted TRZ-SBA-NAI with a high horizontal dipole ratio of 88%. As a result, the TRZ-SBA-NAI based devices achieved a record-high external quantum efficiency of 31.7% with an electroluminescence peak at 593 nm. This finding not only enriches the diversity in TADF molecular design, but also unlocks the huge potential of A-D-A′ type TADF emitters for excellent device performance. ? The Royal Society of Chemistry. | - |
dc.relation.ispartof | Materials Horizons | - |
dc.subject | Charge transfer | - |
dc.subject | Citrus fruits | - |
dc.subject | Efficiency | - |
dc.subject | Electroluminescence | - |
dc.subject | Fluorescence | - |
dc.subject | Steel beams and girders | - |
dc.subject | Charge-transfer excited state | - |
dc.subject | Device performance | - |
dc.subject | External quantum efficiency | - |
dc.subject | Horizontal dipoles | - |
dc.subject | Molecular design | - |
dc.subject | Molecular shapes | - |
dc.subject | Photoluminescence quantum yields | - |
dc.subject | Thermally activated delayed fluorescences | - |
dc.subject | Quantum efficiency | - |
dc.title | An unsymmetrical thermally activated delayed fluorescence emitter enables orange-red electroluminescence with 31.7% external quantum efficiency | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1039/d1mh00613d | - |
dc.identifier.pmid | 34846432 | - |
dc.identifier.scopus | 2-s2.0-85112670757 | - |
dc.relation.pages | 2286-2292 | - |
dc.relation.journalvolume | 8 | - |
dc.relation.journalissue | 8 | - |
item.fulltext | no fulltext | - |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Electrical Engineering | - |
crisitem.author.dept | Office of Research and Development | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Administrative Unit | - |
顯示於: | 電機工程學系 |
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