Aggregation dependent S1 and S2 dual emissions of thiophene-acrylonitrile-carbazole oligomer

被引：9

作者：

Zhang, Xuanjun ^{[1
]}

Loh, Kian Ping ^{[1
]}

Sullivan, Michael B. ^{[2
]}

Chen, Zhi-Kuan ^{[3
]}

Liu, Minghui ^{[4
]}

机构：

[1] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

[2] Inst High Performance Comp, Singapore 117528, Singapore

[3] Inst Mat Res & Engn, Singapore, Singapore

[4] NUS Nanosci & Nanotechnol Initiat, Singapore, Singapore

来源：

CRYSTAL GROWTH & DESIGN | 2008年 / 8卷 / 07期

关键词：

D O I：

10.1021/cg800190w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Dual emissions from S1 (blue region) and S2 (UV region) states of a chromophore with donor-acceptor structure were observed at room temperature. The photophysical properties of the chromophore depend critically on the packing of the molecules. The molecule exhibits weak S1 emission and strong S2 emission; however, when it undergoes solid aggregation, the S1 emission is enhanced while the S2 emission is quenched. The H-packing (face-to-face packing) of the molecules is revealed as the key factor for this interesting aggregation-dependent dual emission.

引用

页码：2543 / 2546

页数：4

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