Protonation and charge transfer in poly-aniline: an optical absorption study of the mixed solutions

被引：27

作者：

Dimitriev, OP

Lavrik, NV

机构：

[1] Inst of Semiconductor Physics NASU, Kiev, Ukraine

来源：

SYNTHETIC METALS | 1997年 / 90卷 / 01期

关键词：

polyaniline and derivatives; optical absorption;

D O I：

10.1016/S0379-6779(97)03882-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Interaction of polyaniline (PANI) with a protonating dopant, dodecylbenzenesulfonic acid (DBSA), and an organic electron acceptor, pentadecyltetracyanoquinodimethane (C(15)TCNQ), is studied in DMSO solutions, using optical absorption spectroscopy. Each of the two agents alone induces an absorption band at 417 nm, attributable to cation-radicals of PANI. Free carrier absorbance in the near-infrared is absent in the case of C(15)TCNQ. Moreover, the charge-transfer interaction between PANI and C,,TCNQ suppresses a transition to the conductive state. When PANI/C(15)TCNQ mixtures are aged, a new band neat 500 nm appears that can be attributed to an adduct of PANI and C(15)TCNQ. (C) 1997 Elsevier Science S.A.

引用

页码：1 / 4

页数：4

共 15 条

[1]

AGBOR NE, 1993, SYNTHETIC MET, V55, P3789

[2] POLYANILINE - CONFORMATIONAL-CHANGES INDUCED IN SOLUTION BY VARIATION OF SOLVENT AND DOPING LEVEL [J].