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Optical Properties and Blue and Green Electroluminescence in Soluble Disubstituted Acetylene Polymers

Kazuya TadaDepartment of Electronic Engineering, Osaka University, Yamada-oka, Suita, Osaka 565, JapanRahmat HidayatDepartment of Electronic Engineering, Osaka University, Yamada-oka, Suita, Osaka 565, JapanM. HirohataDepartment of Electronic Engineering, Osaka University, Yamada-oka, Suita, Osaka 565, JapanMasahiro TeraguchiDepartment of Polymer Chemistry, Kyoto University, Kyoto 606-01, JapanToshio Masuda Toshio MasudaDepartment of Polymer Chemistry, Kyoto University, Kyoto 606-01, JapanKatsumi YoshinoDepartment of Polymer Chemistry, Kyoto University, Kyoto 606-01, Japan

1996en

ABI

Annotatsiya

Intense photoluminescence (PL) was observed in soluble disubstituted polyacetylenes such as poly(1-phenyl-2- p -adamantylphenyl acetylene (PDPA-Ad) at 530 nm, poly(1-phenyl-2- p -triphenylsilylphenyl acetylene) (PDPA-TPSi) at 530 nm and poly(1-hexyl-2-phenyl acetylene) (PHxPA) at 455 nm, although they are considered to be derivatives of trans-polyacetylene. In monosubstituted acetylene polymers such as poly( o -trimethylsilylphenyl acetylene) (PTMSiPA), PL was negligible. Green and blue light emissions were observed from an electroluminescent (EL) device having soluble poly(diphenyl acetylene) (PDPA) derivatives (PDPA-Ad and PDPA-TPSi) and PHxPA as emission layers, respectively. EL emission is clearly observable under normal room illumination conditions. The electronic energy structures of the disubstituted PA derivatives are also discussed to interpret PL and EL characteristics.

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DOI: 10.1143/jjap.35.l1138

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