Photoluminescence and Optical Gain Properties of a Crystalline Thiophene/Phenylene Co-oligomer
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概要
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We have successfully demonstrated a significant fluorescence property in an organic crystal made of a thiophene/phenylene co-oligomer called AC5. The crystal showed no non radiative transition, meaning it has 100% internal fluorescent quantum efficiency. The crystal also showed high quantum efficiency of photoluminescence of $23\pm 1$%. Furthermore, it showed an amplified spontaneous emission at a threshold energy of 21.3 μJ/cm2 and subsequently showed a quite high optical gain of 52.3 cm-1. These features are attractive in many areas in the organic optics field such as organic light emitting diodes, organic lasers, and so on.
- 2008-12-25
著者
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Ichikawa Musubu
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Taniguchi Yoshio
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Koyama Toshiki
Department Of Functional Polymer Science Faculty Of Textile Science And Technology Shinshu Universit
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Uchida Atsuko
Department Of Biological Sciences Graduate School Of Science Tokyo Metropolitan University
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Kanazawa Shusuke
Department Of Emergency And Critical Care Kinki University School Of Medicine
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Koyama Toshiki
Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Uchida Atsuko
Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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Kanazawa Shusuke
Department of Functional Polymer Science, Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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