Ultraviolet amplified spontaneous emission from thin films of 4,4′-bis(9-carbazolyl)-2,2′-biphenyl and the derivatives

Yuichiro Kawamura, Hidetoshi Yamamoto, Kenichi Goushi, Hiroyuki Sasabe, Chihaya Adachi, Hiroki Yoshizaki

研究成果: Contribution to journalArticle査読

33 被引用数 (Scopus)

抄録

394 nm ultraviolet amplified spontaneous emission (ASE) with a low pumping power threshold, from a thin film of an organic semiconductor 4,4′-bis(9-carbazolyl)-2,2′-biphenyl (CBP) is demonstrated. It is done under the pulse excitation of a N2 gas laser (337 nm). It is found that 3,6-dimethyl and 3-methyl substituted CBP derivatives also exhibited ASE in the deep-blue region of 406 and 401 nm. The results show that the ASE gain is correlated with the radiative decay rate (kf) i.e. larger kf resulted in a larger ASE gain.

本文言語英語
ページ(範囲)2724-2726
ページ数3
ジャーナルApplied Physics Letters
84
15
DOI
出版ステータス出版済み - 4 12 2004
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

フィンガープリント

「Ultraviolet amplified spontaneous emission from thin films of 4,4′-bis(9-carbazolyl)-2,2′-biphenyl and the derivatives」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル