PHOTOEXCITATIONS IN CONJUGATED POLYMER SUPERLATTICES

被引：11
|
作者：
PIAGGI, A
TUBINO, R
BORGHESI, A
ROSSI, L
DESTRI, S
LUZZATI, S
SPERONI, F
机构：
[1] UNIV MODENA,DIPARTIMENTO FIS,I-41100 MODENA,ITALY
[2] UNIV PAVIA,DIPARTIMENTO FIS A VOLTA,I-27100 PAVIA,ITALY
[3] CNR,IST CHIM MACROMOLEC,I-20133 MILAN,ITALY
来源：
PHYSICS LETTERS A | 1994年 / 185卷 / 04期
关键词：
D O I：
10.1016/0375-9601(94)90180-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present evidence of quantum confinement of the photo-generated states in a conjugated block copolymer consisting of regularly alternating thiophenic and phenylenic moieties of various lengths, thus giving rise to a sort of one-dimensional superperiodicity. CW photoinduced spectra (both in the infrared and in the visible) have revealed localization effects when the width of the potential well exceeds five thiophenic rings. A discussion of the new features in the copolymer photoexcitation spectrum with respect to the parent polymers is also presented.
引用
收藏
页码：431 / 434
页数：4
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