TY - JOUR
T1 - Constructing new n-type, ambipolar, and p-type aggregation-induced blue luminogens by gradually tuning the proportion of tetrahphenylethene and diphenylphophine oxide
AU - Mu, Guangyuan
AU - Zhang, Wenzhi
AU - Xu, Peng
AU - Wang, Hongfeng
AU - Wang, Yixing
AU - Wang, Lei
AU - Zhuang, Shaoqing
AU - Zhu, Xunjin
N1 - This research work was supported by the NSFC/China (21161160442, 51203056) and the National Basic Research Program of China (973 Program 2013CB922104). The Analytical and Testing Centre at Huazhong University of Science and Technology is acknowledged for characterization of new compounds. X.Z. thanks Hong Kong Baptist University (Grant FRG1/13-14/022) for financial support.
PY - 2014/4/24
Y1 - 2014/4/24
N2 - By gradually adjusting the proportion of tetraphenylethene (TPE) and phosphine oxide (PO), the series of n-type, ambipolar, and p-type aggregation-induced emission (AIE) luminogens (E,Z)-((1,2-diphenylethene-1,2- diyl)bis(4,1-phenylene))bis(diphenylphosphine oxide) (TPEDPO), diphenyl(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (TPEPO), phenylbis(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (DTPEPO), and tris(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (TTPEPO) were developed for the first time. Their optical and electronic properties and AIE characteristics were investigated carefully. Time-resolved spectra indicate that the transient fluorescence decay lifetimes of aggregation-induced blue luminogens change regularly with the aggregation degree in THF/water solution. Particularly, identical electron and hole mobilities (∼2.3 × 10 -4 cm2 V-1 s-1) can be realized when the TPE/PO ratio is 1:1. In electroluminesent (EL) devices, the sky-blue-doped device based on TPEPO was found to exhibit a low turn-on voltage of 2.8 V, a maximum luminance (Lmax) of 8656 cd m-2, a maximum current efficiency (ηC,max) of 9.32 cd A-1, and a maximum power efficiency (ηP,max) of 10.23 lm W-1.
AB - By gradually adjusting the proportion of tetraphenylethene (TPE) and phosphine oxide (PO), the series of n-type, ambipolar, and p-type aggregation-induced emission (AIE) luminogens (E,Z)-((1,2-diphenylethene-1,2- diyl)bis(4,1-phenylene))bis(diphenylphosphine oxide) (TPEDPO), diphenyl(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (TPEPO), phenylbis(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (DTPEPO), and tris(4-(1,2,2-triphenylvinyl)phenyl)phosphine oxide (TTPEPO) were developed for the first time. Their optical and electronic properties and AIE characteristics were investigated carefully. Time-resolved spectra indicate that the transient fluorescence decay lifetimes of aggregation-induced blue luminogens change regularly with the aggregation degree in THF/water solution. Particularly, identical electron and hole mobilities (∼2.3 × 10 -4 cm2 V-1 s-1) can be realized when the TPE/PO ratio is 1:1. In electroluminesent (EL) devices, the sky-blue-doped device based on TPEPO was found to exhibit a low turn-on voltage of 2.8 V, a maximum luminance (Lmax) of 8656 cd m-2, a maximum current efficiency (ηC,max) of 9.32 cd A-1, and a maximum power efficiency (ηP,max) of 10.23 lm W-1.
UR - http://www.scopus.com/inward/record.url?scp=84899525451&partnerID=8YFLogxK
U2 - 10.1021/jp501752a
DO - 10.1021/jp501752a
M3 - Journal article
AN - SCOPUS:84899525451
SN - 1932-7447
VL - 118
SP - 8610
EP - 8616
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 16
ER -