TY - JOUR
T1 - Teaching an old acceptor new tricks
T2 - rationally employing 2,1,3-benzothiadiazole as input to design a highly efficient red thermally activated delayed fluorescence emitter
AU - Ni, Fan
AU - Wu, Zhongbin
AU - Zhu, Zece
AU - Chen, Tianheng
AU - Wu, Kailong
AU - Zhong, Cheng
AU - An, Kebin
AU - Wei, Danqing
AU - Ma, Dongge
AU - Yang, Chuluo
N1 - Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2017
Y1 - 2017
N2 - The exploitation of blue to orange emissive thermally activated delayed fluorescence (TADF) materials has been conducted comprehensively, while the equally important red TADF materials have been studied at a relatively slow pace. Three D-A-D structured fluorescent molecules, N4,N4,N7,N7-tetraphenylbenzo[c][1,2,5]thiadiazole-4,7-diamine (BTZ-DPA), 4,7-bis(9H-carbazol-9-yl)benzo[c][1,2,5]thiadiazole (BTZ-CZ) and 4,7-bis(9,9-dimethylacridin-10(9H)-yl) benzo[c][1,2,5]thiadiazole (BTZ-DMAC) were designed and synthesized by rationally employing 2,1,3-benzothiadiazole as an acceptor. The introduction of 2,1,3-benzothiadiazole not only presents an efficient input for the design of red TADF emitters, but also provides benefits for the resulting high-efficiency organic light-emitting diodes (OLEDs) which show a maximum external quantum efficiency of 8.8% at a luminance of 1.06 cd m−2 with the emission peak at 636 nm.
AB - The exploitation of blue to orange emissive thermally activated delayed fluorescence (TADF) materials has been conducted comprehensively, while the equally important red TADF materials have been studied at a relatively slow pace. Three D-A-D structured fluorescent molecules, N4,N4,N7,N7-tetraphenylbenzo[c][1,2,5]thiadiazole-4,7-diamine (BTZ-DPA), 4,7-bis(9H-carbazol-9-yl)benzo[c][1,2,5]thiadiazole (BTZ-CZ) and 4,7-bis(9,9-dimethylacridin-10(9H)-yl) benzo[c][1,2,5]thiadiazole (BTZ-DMAC) were designed and synthesized by rationally employing 2,1,3-benzothiadiazole as an acceptor. The introduction of 2,1,3-benzothiadiazole not only presents an efficient input for the design of red TADF emitters, but also provides benefits for the resulting high-efficiency organic light-emitting diodes (OLEDs) which show a maximum external quantum efficiency of 8.8% at a luminance of 1.06 cd m−2 with the emission peak at 636 nm.
UR - http://www.scopus.com/inward/record.url?scp=85012188471&partnerID=8YFLogxK
U2 - 10.1039/c7tc00025a
DO - 10.1039/c7tc00025a
M3 - 文章
AN - SCOPUS:85012188471
SN - 2050-7534
VL - 5
SP - 1363
EP - 1368
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 6
ER -