Document Type
Journal Article
Department/Unit
Department of Chemistry
Title
Constructing new N-type, ambipolar, and P-type aggregation-induced blue luminogens by gradually tuning the proportion of tetrahphenylethene and diphenylphophine oxide
Language
English
Abstract
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. © 2014 American Chemical Society.
Publication Date
2014
Source Publication Title
Journal of Physical Chemistry C
Volume
118
Issue
16
Start Page
8610
End Page
8616
Publisher
American Chemical Society
DOI
10.1021/jp501752a
Link to Publisher's Edition
http://dx.doi.org/10.1021/jp501752a
ISSN (print)
19327447
ISSN (electronic)
19327455
APA Citation
Mu, G., Zhang, W., Xu, P., Wang, H., Wang, Y., Wang, L., Zhuang, S., & Zhu, X. (2014). Constructing new N-type, ambipolar, and P-type aggregation-induced blue luminogens by gradually tuning the proportion of tetrahphenylethene and diphenylphophine oxide. Journal of Physical Chemistry C, 118 (16), 8610-8616. https://doi.org/10.1021/jp501752a