Polymer dispersed discotics: Structure, dynamics, and optoelectronic properties

被引:22
作者
Bayer, A
Kopitzke, J
Noll, F
Seifert, A
Wendorff, JH [1 ]
机构
[1] Univ Marburg, Dept Chem, Marburg, Germany
[2] Univ Marburg, Ctr Mat Sci, Marburg, Germany
关键词
D O I
10.1021/ma001470g
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Discotic liquid crystalline materials characterized by the spontaneous formation of columns within the fluid phase display a set of interesting optoelectronic properties directly related to the state of order. The dispersion of such columnar discotics in solid polymer matrices results in geometric confinement effects controlling both the structure of the mesophase and dynamical properties related to transport properties. The confinement causes a reduction of the longitudinal and the transverse spatial correlation lengths which, in turn, gives rise to strong modifications of the absorption and emission properties as well as electronic transport processes.
引用
收藏
页码:3600 / 3606
页数:7
相关论文
共 42 条
[1]   FAST PHOTOCONDUCTION IN THE HIGHLY ORDERED COLUMNAR PHASE OF A DISCOTIC LIQUID-CRYSTAL [J].
ADAM, D ;
SCHUHMACHER, P ;
SIMMERER, J ;
HAUSSLING, L ;
SIEMENSMEYER, K ;
ETZBACH, KH ;
RINGSDORF, H ;
HAARER, D .
NATURE, 1994, 371 (6493) :141-143
[2]   RELAXATION IN LIQUIDS, POLYMERS AND PLASTIC CRYSTALS - STRONG FRAGILE PATTERNS AND PROBLEMS [J].
ANGELL, CA .
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1991, 131 :13-31
[3]   CHARGE TRANSPORT IN DISORDERED ORGANIC PHOTOCONDUCTORS - A MONTE-CARLO SIMULATION STUDY [J].
BASSLER, H .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1993, 175 (01) :15-56
[5]  
BASSLER H, 1994, DISORDER EFFECTS ON RELAXATIONAL PROCESSES, P485
[6]  
BAYER A, IN PRESS J PHYS CH B
[7]   CHARGE TRANSPORT IN DISORDERED MOLECULAR-SOLIDS [J].
BORSENBERGER, PM ;
PAUTMEIER, L ;
BASSLER, H .
JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (08) :5447-5454
[8]   CONCERNING THE ROLE OF DIPOLAR DISORDER ON CHARGE TRANSPORT IN MOLECULARLY DOPED POLYMERS [J].
BORSENBERGER, PM ;
BASSLER, H .
JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (07) :5327-5331
[9]   Light emitting diodes based on a discotic main chain polymer [J].
Christ, T ;
Stumpflen, V ;
Wendorff, JH .
MACROMOLECULAR RAPID COMMUNICATIONS, 1997, 18 (02) :93-98
[10]   Analysis of light emitting diodes by X-ray reflectivity measurements [J].
Christ, T ;
Geffart, F ;
Glusen, B ;
Kettner, A ;
Lussem, G ;
Schafer, O ;
Stumpflen, V ;
Wendorff, JH ;
Tsukruk, VV .
THIN SOLID FILMS, 1997, 302 (1-2) :214-222