Femtosecond time-resolved spectroscopy of sexithiophene thin single crystals

被引：6

作者：

Klein, G ^{[1
]}

Petit, S ^{[1
]}

Hirlimann, C ^{[1
]}

Boeglin, A ^{[1
]}

机构：

[1] Inst Phys & Chim Mat Strasbourg, Opt Nonlineaire & Optoelect Grp, F-67037 Strasbourg, France

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 283卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(97)01359-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Pump-probe experiments as a function of probe time delay, wavelength and polarisation have been performed in alpha-sexithiophene thin single crystals. The characteristics of the observed induced absorption and stimulated emission are explained by the decay of the singlet excitons to the lower Davydov band. The dipole moment of the transition from this state to the ground state is weak and polarised perpendicularly to the long molecular axis. (C) 1998 Elsevier Science B.V.

引用

页码：201 / 206

页数：6

共 31 条

[1] FEMTOSECOND RELAXATION DYNAMICS IN THE ELECTRONIC GROUND-STATE OF DYE MOLECULES STUDIED BY POLARIZATION-DEPENDENT AMPLIFICATION SPECTROSCOPY [J].

ANGEL, G ;

GAGEL, R ;

LAUBEREAU, A .

CHEMICAL PHYSICS LETTERS, 1989, 156 (2-3) :169-174

[2] Excitonic effects in thiophene oligomers [J].

Bosisio, R ;

Botta, C ;

Colombo, A ;

Destri, S ;

Porzio, W ;

Grilli, E ;

Tubino, R ;

Bongiovanni, G ;

Mura, A ;

DiSilvestro, G .

SYNTHETIC METALS, 1997, 87 (01) :23-29

[3]

Brillante A., 1978, Chemical Physics Letters, V55, P131, DOI 10.1016/0009-2614(78)85150-1

[4] PICOSECOND PHOTOINDUCED DICHROISM IN SOLUTIONS OF THIOPHENE OLIGOMERS [J].

CHARRA, F ;

FICHOU, D ;

NUNZI, JM ;

PFEFFER, N .

CHEMICAL PHYSICS LETTERS, 1992, 192 (5-6) :566-570

[5] NANOSECOND TIME-RESOLVED ABSORPTION-SPECTRA OF THIN-FILMS OF ALPHA-CONJUGATED THIOPHENE OLIGOMERS [J].

CHENG, X ;

ICHIMURA, K ;

FICHOU, D ;

KOBAYASHI, T .

CHEMICAL PHYSICS LETTERS, 1991, 185 (3-4) :286-291

[6] ANISOTROPY OF SINGLET TRANSITIONS OF CRYSTALLINE ANTHRACENE [J].

CLARK, LB ;

PHILPOTT, MR .

JOURNAL OF CHEMICAL PHYSICS, 1970, 53 (10) :3790-&

[7] Theoretical studies and spectroscopic investigations of ground and excited electronic states of thiophene oligomers [J].

Colditz, R ;

Grebner, D ;

Helbig, M ;

Rentsch, S .

CHEMICAL PHYSICS, 1995, 201 (2-3) :309-320

[8] PHOTOLUMINESCENCE UNDER SELECTIVE EXCITATION OF THIOPHENE OLIGOMERS - RELATIONSHIP TO MICROCRYSTALLINE STRUCTURE [J].

DELOFFRE, F ;

GARNIER, F ;

SRIVASTAVA, P ;

YASSAR, A ;

FAVE, JL .

SYNTHETIC METALS, 1994, 67 (1-3) :223-226

[9] ENERGY-DEPENDENT BRANCHING BETWEEN FLUORESCENCE AND SINGLET EXCITON DISSOCIATION IN SEXITHIENYL THIN-FILMS [J].

DIPPEL, O ;

BRANDL, V ;

BASSLER, H ;

DANIELI, R ;

ZAMBONI, R ;

TALIANI, C .

CHEMICAL PHYSICS LETTERS, 1993, 216 (3-6) :418-423

[10] Influence of oxygen doping on the photoconductivity of pi-conjugated molecules [J].

Egelhaaf, HJ ;

Luer, L ;

Oelkrug, D ;

Winter, G ;

Haisch, P ;

Hanack, M .

SYNTHETIC METALS, 1997, 84 (1-3) :897-898

← 1 2 3 4 →