High pressure effects on the photoluminescence intensity of sexithiophene single crystals

被引:6
作者
Loi, MA [1 ]
Bongiovanni, G
Mura, A
Cai, Q
Martin, C
Chandrasekhar, HR
Chandrasekhar, M
Graupner, W
Garnier, F
机构
[1] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy
[2] Univ Cagliari, Ist Nazl Fis Mat, I-09042 Monserrato, CA, Italy
[3] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
[4] Virginia Tech, Dept Phys, Blacksburg, VA 24060 USA
[5] CNRS, Mat Mol Lab, F-94320 Thiais, France
关键词
oligothiophenes; high pressure; photoluminescence; time-resolved fast spectroscopy;
D O I
10.1016/S0379-6779(00)00428-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report on the influence of interchain interactions on the light emission properties of a sexithiophene single crystal. The strength of the intermolecular interactions is controlled by applying hydrostatic pressure. The combined use of both steady-state and time-resolved photoluminescence techniques permits to show that the pressure-induced quenching of the photoluminescence is caused by a reduction of the radiative recombination rate. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:311 / 315
页数:5
相关论文
共 34 条
[1]   Influence of chain length and derivatization on the lowest singlet and triplet states and intersystem crossing in oligothiophenes [J].
Beljonne, D ;
Cornil, J ;
Friend, RH ;
Janssen, RAJ ;
Bredas, JL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (27) :6453-6461
[2]   Effect of pressure on lattice modes and electronic excitations of 9,10-diiodoanthracene crystals [J].
Brillante, A ;
DellaValle, RG ;
Ulrich, C ;
Syassen, K .
JOURNAL OF CHEMICAL PHYSICS, 1997, 107 (12) :4628-4634
[3]  
Broude V. L., 1985, SPECTROSCOPY MOL EXC
[4]   Real-time vibronic coupling dynamics in a prototypical conjugated oligomer [J].
Cerullo, G ;
Lanzani, G ;
Muccini, M ;
Taliani, C ;
De Silvestri, S .
PHYSICAL REVIEW LETTERS, 1999, 83 (01) :231-234
[5]   Effects of intermolecular interactions on the lowest excited state in luminescent conjugated polymers and oligomers [J].
Cornil, J ;
Heeger, AJ ;
Bredas, JL .
CHEMICAL PHYSICS LETTERS, 1997, 272 (5-6) :463-470
[6]   Influence of interchain interactions on the absorption and luminescence of conjugated oligomers and polymers:: A quantum-chemical characterization [J].
Cornil, J ;
dos Santos, DA ;
Crispin, X ;
Silbey, R ;
Brédas, JL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (06) :1289-1299
[7]   ORGANIC TRANSISTORS - 2-DIMENSIONAL TRANSPORT AND IMPROVED ELECTRICAL CHARACTERISTICS [J].
DODABALAPUR, A ;
TORSI, L ;
KATZ, HE .
SCIENCE, 1995, 268 (5208) :270-271
[8]  
FISHER G, 1984, VIBRONIC COUPLING, P183
[9]   The four-level stimulated emission in sexithiophene single crystals [J].
Garnier, F ;
Horowitz, G ;
Valat, P ;
Kouki, F ;
Wintgens, V .
APPLIED PHYSICS LETTERS, 1998, 72 (17) :2087-2089
[10]   ALL-POLYMER FIELD-EFFECT TRANSISTOR REALIZED BY PRINTING TECHNIQUES [J].
GARNIER, F ;
HAJLAOUI, R ;
YASSAR, A ;
SRIVASTAVA, P .
SCIENCE, 1994, 265 (5179) :1684-1686