Optical properties of fluorescent polyimide Langmuir-Blodgett films containing 2,5-distyrylpyrazine

被引：0

作者：

Wu, AP ^{[1
]}

Akagi, T ^{[1
]}

Jikei, M ^{[1
]}

Kakimoto, MA ^{[1
]}

Imai, Y ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT ORGAN & POLYMER MAT,MEGURO KU,TOKYO 152,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 12A期

关键词：

Langmuir-Blodgett (LB) film; polyimide; 2,5-distyrylpyrazine (DSP); photoluminescence (PL);

D O I：

10.1143/JJAP.35.6131

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

UV-visible absorption and photoluminescence, originating from the 2,5-distyrylpyrazine (DSP) chromophore incorporated into the polymer backbone of polyamic acid and polyimide were demonstrated in the Langmuir-Blodgett (LB) films. The formation of an aggregated structure with a large Stokes shift and a weak emissive intensity was observed in the cases of the polyamic acid (1) under bar and the polyimide (3) under bar LB films. In-plane anisotropic optical properties manifested by the polymer LB films indicated that the DSP chromophores were highly oriented parallel to the dipping direction. Meanwhile, photo-polymerization of the DSP chromophores was observed in the polyimide (3) under bar LB film. This suggested that a three dimensional network structure was formed in the polymer LB film.

引用

页码：6131 / 6134

页数：4

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