Origin of the exciton transition shift in thin films of polyaniline

被引：21

作者：

Dimitriev, OP ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Semicond Phys, UA-03028 Kiev, Ukraine

来源：

SYNTHETIC METALS | 2001年 / 125卷 / 03期

关键词：

polyaniline; thin films; electronic spectra; molecular interactions;

D O I：

10.1016/S0379-6779(01)00475-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The blue shift of the benzenoid-to-quinoid exciton transition (BQET) in thin films of the emeraldine base (EB) of polyaniline (PANI) observed earlier has been studied in more detail in order to explain its origin. It was found that the shift is partly reversible upon annealing of the films or their exposure to solvent vapors. Infra-red (IR) absorption spectra of the films did not reveal features attributable to the pernigraniline base (PB) of polyaniline. It has been proposed that direct interaction of planar benzenoid and quinoid chromophore groups rather than oxidation of the polymer chains is responsible, for the blue-shifted exciton transition in thin polyaniline films. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：359 / 363

页数：5

共 26 条

[11] Processible polyaniline complexes due to molecular recognition: Supramolecular structures based on hydrogen bonding and phenyl stacking [J].

Ikkala, OT ;

Pietilac, LO ;

Passiniemi, P ;

Vikki, T ;

Osterholm, H ;

Ahjopalo, L ;

Osterholm, JE .

SYNTHETIC METALS, 1997, 84 (1-3) :55-58

[12] Long-range interaction between hydrophilic surfaces immersed in a hydrophobic fluid containing a hydrophilic component at low concentration [J].

Kinoshita, M .

CHEMICAL PHYSICS LETTERS, 2001, 333 (3-4) :217-223

[13] Conducting blends of polyaniline with conventional polymers [J].

Laska, J ;

Zak, K ;

Pron, A .

SYNTHETIC METALS, 1997, 84 (1-3) :117-118

[14] PHOTOEXCITED SOLITONS AND POLARONS IN PERNIGRANILINE-BASE POLYMERS [J].

LENG, JM ;

MCCALL, RP ;

CROMACK, KR ;

SUN, Y ;

MANOHAR, SK ;

MACDIARMID, AG ;

EPSTEIN, AJ .

PHYSICAL REVIEW B, 1993, 48 (21) :15719-15731

[15] Fabrication of self-assembled polyaniline films by doping-induced deposition [J].

Li, D ;

Jiang, YD ;

Wu, ZM ;

Chen, XD ;

Li, YR .

THIN SOLID FILMS, 2000, 360 (1-2) :24-27

[16] THE CONCEPT OF SECONDARY DOPING AS APPLIED TO POLYANILINE [J].

MACDIARMID, AG ;

EPSTEIN, AJ .

SYNTHETIC METALS, 1994, 65 (2-3) :103-116

[17] POLYANILINE - ALLOWED OXIDATION-STATES [J].

MASTERS, JG ;

SUN, Y ;

MACDIARMID, AG ;

EPSTEIN, AJ .

SYNTHETIC METALS, 1991, 41 (1-2) :715-718

[18]

Pontes RS, 1999, PHYS STATUS SOLIDI A, V173, P41, DOI 10.1002/(SICI)1521-396X(199905)173:1<41::AID-PSSA41>3.0.CO

[19]

2-Q

[20] VIBRATIONAL ANALYSIS OF POLYANILINE - A COMPARATIVE-STUDY OF LEUCOEMERALDINE, EMERALDINE, AND PERNIGRANILINE BASES [J].

QUILLARD, S ;

LOUARN, G ;

LEFRANT, S ;

MACDIARMID, AG .

PHYSICAL REVIEW B, 1994, 50 (17) :12496-12508

← 1 2 3 →