TY - JOUR
T1 - White Electroluminescence with Simultaneous Three-Color Emission from a Four-Armed Star-Shaped Single-Polymer System
AU - Jiu, Yuanda
AU - Wang, Jianyun
AU - Liu, Chengfang
AU - Lai, Wenyong
AU - Zhao, Lingling
AU - Li, Xiangchun
AU - Jiang, Yi
AU - Xu, Weidong
AU - Zhang, Xinwen
AU - Huang, Wei
N1 - Publisher Copyright:
Copyright © 2015 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2015/8/1
Y1 - 2015/8/1
N2 - A four-armed star-shaped single-polymer system with 4,7-bis(5-(4-(9H-carbazol-9-yl)phenyl)-4-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazole (FTBT) as a red emissive core, polyfluorene (PF) as blue emissive arms and 1,3-benzo thiadiazole (BT) as green emissive dopants was designed and synthesized, in which red, green, and blue (RGB) emission balance can be achieved by adjusting the doping concentration of FTBT and BT discreetly. A typical single-emissive-layer device (ITO/PEDOT:PSS/polymer/TPBI/LiF/Al) was studied and discussed, realizing a pure and stable white emission with a luminous efficiency (LE) of 1.59 cd·A-1 and CIE coordinates of (0.31, 0.34). The high-color-quality white electroluminescence of the devices could be mainly attributed to the suppressed intermolecular interactions, and partial energy transfer from the blue PF arms to the red and green dopants. A four-armed star-shaped single-polymer system with simultaneous red, green, and blue (RGB) emission was designed and synthesized, which realized pure and stable white emission with a luminous efficiency (LE) of 1.59 cd·A-1 and CIE coordinates of (0.31, 0.34) in a typical single-emissive-layer device.
AB - A four-armed star-shaped single-polymer system with 4,7-bis(5-(4-(9H-carbazol-9-yl)phenyl)-4-hexylthiophen-2-yl)benzo[c][1,2,5]thiadiazole (FTBT) as a red emissive core, polyfluorene (PF) as blue emissive arms and 1,3-benzo thiadiazole (BT) as green emissive dopants was designed and synthesized, in which red, green, and blue (RGB) emission balance can be achieved by adjusting the doping concentration of FTBT and BT discreetly. A typical single-emissive-layer device (ITO/PEDOT:PSS/polymer/TPBI/LiF/Al) was studied and discussed, realizing a pure and stable white emission with a luminous efficiency (LE) of 1.59 cd·A-1 and CIE coordinates of (0.31, 0.34). The high-color-quality white electroluminescence of the devices could be mainly attributed to the suppressed intermolecular interactions, and partial energy transfer from the blue PF arms to the red and green dopants. A four-armed star-shaped single-polymer system with simultaneous red, green, and blue (RGB) emission was designed and synthesized, which realized pure and stable white emission with a luminous efficiency (LE) of 1.59 cd·A-1 and CIE coordinates of (0.31, 0.34) in a typical single-emissive-layer device.
KW - Förster resonance energy transfer
KW - hyperbranched polymers
KW - multi-armed structures
KW - organic light-emitting diodes
KW - white electroluminescence
UR - http://www.scopus.com/inward/record.url?scp=84939654203&partnerID=8YFLogxK
U2 - 10.1002/cjoc.201500308
DO - 10.1002/cjoc.201500308
M3 - 文章
AN - SCOPUS:84939654203
SN - 1001-604X
VL - 33
SP - 873
EP - 880
JO - Chinese Journal of Chemistry
JF - Chinese Journal of Chemistry
IS - 8
ER -