Room-Temperature Phosphorescence Enhanced by Narrowing Down Delta E-ST through Tuning Excited States Energy Levels - Details

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EI Scopus SCIE

Abstract：

In　this　work,　two　spiro-type　compounds　are　investigated　with　similar　molecular　structure　and　stacking　structure.　By　simply　altering　the　acceptor＇s　heteroatoms,　a　strategy　to　enhance　room　temperature　phosphorescence　(RTP)　performance　is　presented.　The　intersystem　crossing　process　can　effectively　be　accelerated　by　reducing　the　energy　gap　between　the　singlet　and　triplet　states　(Delta　E-ST)　through　adjusting　the　molecular　energy　level.　Besides,　thermally　activated　delayed　fluorescence　(TADF)　is　emerging　in　dilute　solution　due　to　such　small　Delta　E-ST.　This　is　helpful　for　deeply　understanding　the　mechanism　of　competition　in　different　radiative　decay　pathways　(RTP　and　TADF).

Keyword：

intersystem crossing room temperature phosphorescence thermally activated delayed fluorescence

Community：

[ 1 ] [Liang, Dong]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
[ 2 ] [Cai, Xian-Bao]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
[ 3 ] [Yu, Rongmin]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
[ 4 ] [Lu, Can-Zhong]Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China
[ 5 ] [Liang, Dong]Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
[ 6 ] [Yang, Mingxue]Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
[ 7 ] [Cai, Xian-Bao]Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
[ 8 ] [Yu, Rongmin]Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
[ 9 ] [Lu, Can-Zhong]Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China
[ 10 ] [Liang, Dong]Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
[ 11 ] [Yang, Mingxue]Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
[ 12 ] [Cai, Xian-Bao]Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
[ 13 ] [Yu, Rongmin]Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
[ 14 ] [Lu, Can-Zhong]Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China
[ 15 ] [Jia, Ji-Hui]Fujian Univ Technol, Sch Mat Sci & Engn, Fuzhou 350108, Peoples R China
[ 16 ] [Lu, Can-Zhong]Univ Chinese Acad Sci, Beijing 100049, Peoples R China