CRYSTAL-GROWTH AND CHARACTERIZATION OF A 1ST (SPACE-CHARGE INDUCED) PHOTOREFRACTIVE ORGANIC-CRYSTAL

被引：3

作者：

HULLIGER, J

SCHUMACHER, Y

SUTTER, K

BREZINA, B

AMMANN, H

机构：

[1] Institute of Quantum Electronics, Swiss Federal Institute of Technology

来源：

MATERIALS RESEARCH BULLETIN | 1991年 / 26卷 / 09期

关键词：

ORGANIC CRYSTALS; NITROPYRIDINES;

D O I：

10.1016/0025-5408(91)90168-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dissolving congruent-to 1000 ppm (1 ppm = 1-mu-mol/mol) 7,7,8,8-tetracyanoquinodimethane (TCNQ) in a superheated melt of 2-cyclooctylamino-5-nitropyridine (COANP) leads to formation of mainly [TCNQ]2(-2) that is incorporated into the COANP crystal lattice by supercooled melt growth at supercoolings smaller than DELTA-T less-than-or-equal-to 0.5 - 1.5-degrees-C. Obtained doped COANP crystals show an extra optical absorption at lambda-max congruent-to 650 nm and are photorefractive. The found photorefractive effects are most probably induced by the presence of approximately 50 ppm [TCNQ]2(-2).

引用

页码：887 / 891

页数：5

共 15 条

[11]

STDUCHARME, 1991, PHYS REV LETT, V66, P1846

[12] PHOTOREFRACTIVE EFFECTS OBSERVED IN THE ORGANIC-CRYSTAL 2-CYCLOOCTYLAMINO-5-NITROPYRIDINE DOPED WITH 7,7,8,8-TETRACYANOQUINODIMETHANE [J].