CsPbBr3 Perovskite Quantum Dot Vertical Cavity Lasers with Low Threshold and High Stability

Chun Ying Huang, Chen Zou, Chenyi Mao, Kathryn L. Corp, Yung Chi Yao, Ya Ju Lee, Cody W. Schlenker, Alex K.Y. Jen, Lih Y. Lin*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

138 引文 斯高帕斯(Scopus)

摘要

All-inorganic cesium lead bromide (CsPbBr3) perovskite quantum dots (QDs) have recently emerged as highly promising solution-processed materials for next-generation light-emitting applications. They combine the advantages of QD and perovskite materials, which makes them an attractive platform for achieving high optical gain with high stability. Here, we report an ultralow lasing threshold (0.39 μJ/cm2) from a hybrid vertical cavity surface emitting laser (VCSEL) structure consisting of a CsPbBr3 QD thin film and two highly reflective distributed Bragg reflectors (DBRs). Temperature dependence of the lasing threshold and long-term stability of the device were also characterized. Notably, the CsPbBr3 QDs provide superior stability and enable stable device operation over 5 h/1.8 × 107 optical pulse excitations under ambient conditions. This work demonstrates the significant potential of CsPbBr3 perovskite QD VCSELs for highly reliable lasers, capable of operating in the short-pulse (femtosecond) and quasi-continuous-wave (nanosecond) regimes.

原文英語
頁(從 - 到)2281-2289
頁數9
期刊ACS Photonics
4
發行號9
DOIs
出版狀態已發佈 - 2017 九月 20

ASJC Scopus subject areas

  • 電子、光磁材料
  • 生物技術
  • 原子與分子物理與光學
  • 電氣與電子工程

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