Graphene Quantum Dot Vertical Cavity Surface-Emitting Lasers

Ya Ju Lee*, Ting Wei Yeh, Chen Zou, Zu Po Yang, Jia Wen Chen, Pei Lun Hsu, Ji Lin Shen, Chun Chieh Chang, Jinn Kong Sheu, Lih Y. Lin


研究成果: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)


Nonzero-bandgap graphene quantum dots (GQDs) are novel optical gain materials promising for solution-processed light sources with high cost efficiency and device performance. Currently, there have only been a few reports on the realization of GQDs-based lasers. Herein, we demonstrate for the first time room-temperature lasing emission with green gamut from GQDs in a vertical optical cavity composed of Ta2O5/SiO2 dielectric distributed Bragg reflectors (DBRs). The lasing is enabled by the unique design of the DBR, which not only provides a wide stopband spectrally overlapping with the emission of the GQDs but also allows high transmittance of optical excitation in the UV-light region. This demonstration is a clear evidence of the use of GQDs as optical gain materials and represents an important step forward toward their potential applications in wide-gamut laser displays and projectors.

頁(從 - 到)2894-2901
期刊ACS Photonics
出版狀態已發佈 - 2019 11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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