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: Article同行評審

3 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Published - 2019 十一月 20

All Science Journal Classification (ASJC) codes

  • 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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