Synthesis of Bis(diarylphosphino)dithienosilole Derivatives as Novel Photo- and Electroluminescence Materials

Synthesis of Bis(diarylphosphino)dithienosilole Derivatives as Novel Photo- and Electroluminescence Materials

Bis(diarylphosphino)dithienosiloles and their oxidized species were synthesized, and their optical properties were studied. They showed efficient photoluminescence (PL) in solutions as well as in the solid states, which was markedly affected by the phosphine oxidation states. The bis(diphenylphosphi...

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Veröffentlicht in:Organometallics 2007-12, Vol.26 (26), p.6591-6595
Hauptverfasser: Ohshita, Joji, Kurushima, Yasunori, Lee, Kwang-Hoi, Kunai, Atsutaka, Ooyama, Yousuke, Harima, Yutaka
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container_end_page 6595
container_issue 26
container_start_page 6591
container_title Organometallics
container_volume 26
creator Ohshita, Joji
Kurushima, Yasunori
Lee, Kwang-Hoi
Kunai, Atsutaka
Ooyama, Yousuke
Harima, Yutaka
description Bis(diarylphosphino)dithienosiloles and their oxidized species were synthesized, and their optical properties were studied. They showed efficient photoluminescence (PL) in solutions as well as in the solid states, which was markedly affected by the phosphine oxidation states. The bis(diphenylphosphino) derivative exhibited reversible changes of the PL spectra in solutions upon interaction with Lewis acids. The electroluminescence properties were also examined, and a whitish-blue-green emission with a maximum luminance of ca. 130 cd/m2 was observed from a double-layered device having vapor-deposited films of bis(dinaphthylphosphino)dithienosilole dioxide and N,N′-diphenyl-N,N′-di-m-tolylbiphenyl-4,4′-diamine as the emitting and hole-transporting electron-blocking layers, respectively.
doi_str_mv 10.1021/om700765w
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title Synthesis of Bis(diarylphosphino)dithienosilole Derivatives as Novel Photo- and Electroluminescence Materials
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