Extremely low amplified spontaneous emission threshold and blue electroluminescence from a spin-coated octafluorene neat film

D. H. Kim, A. S.D. Sandanayaka, L. Zhao, D. Pitrat, J. C. Mulatier, T. Matsushima, C. Andraud, J. C. Ribierre, C. Adachi

研究成果: Contribution to journalArticle

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We report on the photophysical, amplified spontaneous emission (ASE), and electroluminescence properties of a blue-emitting octafluorene derivative in spin-coated films. The neat film shows an extremely low ASE threshold of 90 nJ/cm2, which is related to its high photoluminescence quantum yield of 87% and its large radiative decay rate of 1.7 × 109 s−1. Low-threshold organic distributed feedback semiconductor lasers and fluorescent organic light-emitting diodes with a maximum external quantum efficiency as high as 4.4% are then demonstrated, providing evidence that this octafluorene derivative is a promising candidate for organic laser applications.

元の言語英語
記事番号023303
ジャーナルApplied Physics Letters
110
発行部数2
DOI
出版物ステータス出版済み - 1 9 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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