Mesoscale optical properties of conjugated polymers probed by near-field scanning optical microscopy

被引：55

作者：

DeAro, JA

Weston, KD

Buratto, SK

Lemmer, U

机构：

[1] Department of Chemistry, Univ. of California at S. Barbara, Santa Barbara

[2] Sektion Physik, Ludwig-Maximilians-Universität, 80799 Munich

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 277卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(97)00882-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Near-field scanning optical microscopy (NSOM) has been used to study the mesoscale optical properties of oriented and non-oriented free-standing thin films of poly(p-phenylene vinylene) (PPV). We report a strong correlation between film morphology and the optical properties on a 100 nm scale. The non-oriented PPV thin film exhibits mesoscale domains of local molecular orientation as well as areas which are characterized by a low photoluminescence efficiency, Upon stretch orientation, PPV thin films show average polymer chain orientation parallel to the stretch axis as well as distinct areas of perpendicular molecular orientation correlated to film topography. (C) 1997 Elsevier Science B.V.

引用

页码：532 / 538

页数：7

共 30 条

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