Amplified Spontaneous Emission and Electroluminescence from Thiophene/Phenylene Co-Oligomer-Doped p-bis(p-Styrylstyryl)Benzene Crystals

Authors

  • Hajime Nakanotani,

    1. Innovative Organic Device Laboratory Institute of Systems, Information Technologies and Nanotechnologies (ISIT) Center for Future Chemistry and Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Nishi, Fukuoka, Japan
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  • Chihaya Adachi

    Corresponding author
    1. International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University, Nishi, Fukuoka, Japan
    • Innovative Organic Device Laboratory Institute of Systems, Information Technologies and Nanotechnologies (ISIT) Center for Future Chemistry and Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, Nishi, Fukuoka, Japan
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E-mail: adachi@opera.kyushu-u.ac.jp

Abstract

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Enhanced amplified spontaneous emission (ASE) properties are demonstrated in dye-doped organic solid-state crystals. Optically pumped ASE with a low threshold (3 μJ cm-2) is obtained from α,ω-di(biphenyl)-terthiophene (BP3T)-dopedp-bis(p-styrylstyryl)benzene crystals; ∼3 times lower than that of BP3T single crystals. The doped crystals show ambipolar charge-carrier transport, resulting in bright electroluminescence from the crystal edge under electrical pumping.

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