Multiphonon Raman scattering enhanced by resonance with band gap Ag luminescence state in trans-polyacetylene

被引：0

作者：

Watanabe, Toshio ^{[1
]}

Kubo, Takaya ^{[1
]}

Ishikawa, Ken ^{[1
]}

Takezoe, Hideo ^{[1
]}

Fukuda, Atuso ^{[1
]}

机构：

[1] Tokyo Inst of Technology, Tokyo, Japan

来源：

Japanese Journal of Applied Physics, Part 2: Letters | 1994年 / 33卷 / 1 A期

关键词：

Energy gap - Excitons - Light absorption - Luminescence - Phonons - Photoelectricity - Polyacetylenes - Raman scattering - Resonance;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Emission spectra excited in the exciton forming absorption region (1.42-1.71 eV) of trans-polyacetylene have been obtained at room temperature, 77 K and 4.2 K. The overtones and combinations of fundamentals are remarkably enhanced only when they overlap with the near-infrared luminescence peaking at 1.24 eV. These facts suggest the similarity between trans- and cis-(CH)x in optical and photoelectric responses at least near their respective intrinsic absorption characterized by the triplet vibronic structure.

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