1995 Fiscal Year Final Research Report Summary
STUDY OF OPTICAL AND OPTO-ELECTRONIC PROPERTIES OF BETACAROTENE AND RELATED LINEAR CONJUGATED POLYMERS
| Project/Area Number |
06640457
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
固体物性Ⅰ(光物性・半導体・誘電体)
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| Research Institution | Faculyt of Science, Japan Women's University |
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Principal Investigator |
KODA Takao Department of Mathematical and Physical Sciences, Faculyt of Engineering, Japan Women's University, Professor, 理学部, 教授 (50010715)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Optical Properties of Organic Matertials. / Conjugated Polymers. / Molecular Electronics. / Organic Nonlinear Optical Materials / Organic Thin Films. |
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| Research Abstract |
Optical and electro-optical properties have been investigated on beta-carotenes and related linear conjygated polyenes and polymers, inciuding diphenyl (DP) -octatetoraene, DP-hexatoriene, DP-butagene, poly silanes and polydiacetylenes, in the form of crystals and thin films, by means of third-order nonlinear optical spectroscopy such as electro-modu lated absorption spectroscopy, third-order harmonic generation spectroscopy, two-photon absorption spectroscopy and others. As a result, details of quasi-one-dimentional exciton structures in these linear conjugated molecules have been nelucideted. An important outcome is the first finding of specific polydiacetylenes which exhibit a reversible photo-induced phase transition between the two different electronic phases.
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