{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Han C"],"funding":["Changjiang Scholar Program of Chinese Ministry of Education","Education Bureau of Heilongjiang Province","Fok Ying-Tong Education Foundation","National Natural Science Foundation of China","Science and Technology Bureau of Heilongjiang Province","Harbin Science and Technology Bureau"],"pagination":["e1700904"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC5600533"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["3(9)"],"pubmed_abstract":["Allochroic organic light-emitting devices (AOLEDs) characterized by field-dependent emissive color variation are promising as visible signal response units for intelligent applications. Most of the AOLEDs were realized by changing their recombination zones or inter- and intramolecular energy transfer, rendering the limited repeatability, stability, and electroluminescence (EL) performance. We report a novel thermally activated delayed fluorescence (TADF) diode that featured a successive and irreversible emission color change from bluish green to deep blue during voltage increase, which uses the significant influence of host polarity on the emission color of TADF dyes, namely, solvatochromic effect. Its host 3,6-di-<i>tert</i>-butyl-1,8-bis(diphenylphosphoryl)-9<i>H</i>-carbazole (tBCzHDPO) was designed with remarkable field-dependent polarity reduction from 7.9 to 3.3 D by virtue of hydrogen bond-induced conformational isomerization. This TADF device achieves the best EL performance among AOLEDs, to date, with, for example, an external quantum efficiency beyond 15%, as well as the unique irreversible allochroic characteristic for visible data storage and information security."],"journal":["Science advances"],"pubmed_title":["Allochroic thermally activated delayed fluorescence diodes through field-induced solvatochromic effect."],"pmcid":["PMC5600533"],"funding_grant_id":["award329905","2014CJHB005","award329904","141012","2015RAYXJ008","ZD201402 and JC2015002","award329901","award329900","award329903","21672056, 51373050, 61605042 and 21602048","award329902"],"pubmed_authors":["Yang W","Xie M","Duan C","Han C","Xu H"],"additional_accession":[]},"is_claimable":false,"name":"Allochroic thermally activated delayed fluorescence diodes through field-induced solvatochromic effect.","description":"Allochroic organic light-emitting devices (AOLEDs) characterized by field-dependent emissive color variation are promising as visible signal response units for intelligent applications. Most of the AOLEDs were realized by changing their recombination zones or inter- and intramolecular energy transfer, rendering the limited repeatability, stability, and electroluminescence (EL) performance. We report a novel thermally activated delayed fluorescence (TADF) diode that featured a successive and irreversible emission color change from bluish green to deep blue during voltage increase, which uses the significant influence of host polarity on the emission color of TADF dyes, namely, solvatochromic effect. Its host 3,6-di-<i>tert</i>-butyl-1,8-bis(diphenylphosphoryl)-9<i>H</i>-carbazole (tBCzHDPO) was designed with remarkable field-dependent polarity reduction from 7.9 to 3.3 D by virtue of hydrogen bond-induced conformational isomerization. This TADF device achieves the best EL performance among AOLEDs, to date, with, for example, an external quantum efficiency beyond 15%, as well as the unique irreversible allochroic characteristic for visible data storage and information security.","dates":{"release":"2017-01-01T00:00:00Z","publication":"2017 Sep","modification":"2024-11-20T01:56:22.088Z","creation":"2019-03-27T02:56:31Z"},"accession":"S-EPMC5600533","cross_references":{"pubmed":["28929136"],"doi":["10.1126/sciadv.1700904"]}}