PHOTOINDUCED BIDIRECTIONAL PHASE-TRANSITIONS IN POLYDIACETYLENE SINGLE-CRYSTALS

被引：7

作者：

KOSHIHARA, S

SEGAWA, Y

TOKURA, Y

KODA, T

TAKEDA, K

机构：

[1] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN

[2] UNIV TOKYO,DEPT APPL PHYS,TOKYO 113,JAPAN

[3] JAPAN SYNTHET RUBBER CO LTD,TSUKUBA RES LAB,TSUKUBA 305,JAPAN

来源：

SYNTHETIC METALS | 1993年 / 55卷 / 01期

关键词：

D O I：

10.1016/0379-6779(93)90917-L

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the occurrence of a unique photo-induced phenomenon in conjugated polymers: reversible photo-induced phase transitions in single crystals of polydiacetylene (PDA). The dependence of phase conversion efficiency on the excitation photon energy shows that the photo-generation of charge-carriers (polarons), rather than excitons, is responsible for this macroscopic phase change. The possible dynamics of this unconventional phenomenon in the nanosecond time-domain is discussed.

引用

页码：103 / 108

页数：6

共 3 条

[1]

Bloor D., 1985, NATO ASI SERIES E, V102

[2] REVERSIBLE AND IRREVERSIBLE THERMOCHROMIC PHASE-TRANSITIONS IN SINGLE-CRYSTALS OF POLYDIACETYLENES SUBSTITUTED WITH ALKYL-URETHANES [J].