TY - JOUR
T1 - Stable pure-blue polymer light-emitting devices based on β-phase poly(9,9-dioctylfluorene) induced by 1,2-dichloroethane
AU - Zhang, Xinwen
AU - Lei, Zhenfeng
AU - Hu, Qi
AU - Lin, Jinyi
AU - Chen, Yuehua
AU - Xie, Linghai
AU - Lai, Wenyong
AU - Huang, Wei
N1 - Publisher Copyright:
© 2014 The Japan Society of Applied Physics.
PY - 2014/10/1
Y1 - 2014/10/1
N2 - Thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized by dipping amorphous-phase PFO thin films in 1,2-dichloroethane for several seconds. Absorption, photoluminescence, and electroluminescence spectra indicate that the β-phase is generated in the thin films. A stable pureblue polymer light-emitting device based on the β-phase PFO film was fabricated. The efficiency of the device with the β-phase is increased to 2.53 cd/A, which is 3.3 times higher than that of the device with the amorphous phase. Moreover, it is found that the device with β-phase emission shows high color purity as well as stable spectra.
AB - Thin films of β-phase poly(9,9-dioctylfluorene) (PFO) were realized by dipping amorphous-phase PFO thin films in 1,2-dichloroethane for several seconds. Absorption, photoluminescence, and electroluminescence spectra indicate that the β-phase is generated in the thin films. A stable pureblue polymer light-emitting device based on the β-phase PFO film was fabricated. The efficiency of the device with the β-phase is increased to 2.53 cd/A, which is 3.3 times higher than that of the device with the amorphous phase. Moreover, it is found that the device with β-phase emission shows high color purity as well as stable spectra.
UR - https://www.scopus.com/pages/publications/84988904889
U2 - 10.7567/APEX.7.101601
DO - 10.7567/APEX.7.101601
M3 - 文章
AN - SCOPUS:84988904889
SN - 1882-0778
VL - 7
JO - Applied Physics Express
JF - Applied Physics Express
IS - 10
M1 - 101601
ER -