Optical properties of self-assembled poly(p-phenylene vinylene) converted at low temperatures

被引:1
作者
Castro, FA [1 ]
Marletta, A [1 ]
Faria, RM [1 ]
Guimaraes, FEG [1 ]
机构
[1] USP, IFSC, DFCM, BR-13560970 Sao Carlos, SP, Brazil
来源
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2002年 / 374卷
关键词
self-assembly; PPV; luminescence; absorption;
D O I
10.1080/10587250210438
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Self-assembly films of poly(p-phenylene vinylene) (PPV) were prepared by dipping quartz substrates alternately in solutions of the PPV polymer precursor poly(xylylidene tetrahydrothiophenium chloride) (PPV-precursor) and of a sodium salt of dodecylbenzenesulfonic (DBS) acid. The advantage of introducing DBS lies in the possibility of converting films with a high conjugation length at 115 T within only 3 min. By controlling the DBS concentration, symmetrical and non-symmetrical PPV heterostuctures can be realized with a macromolecular manipulation during the dipping direction, leading to enhanced optical proprieties.
引用
收藏
页码:421 / 426
页数:6
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