Transfer Printing of Perovskite Whispering Gallery Mode Laser Cavities by Thermal Release Tape

Nanoscale Research Letters

Guo-Hui Li¹  Bo-Lin Zhou¹  Yan-Fu Wei¹  Yan-Xia Cui¹  Yu-Ying Hao¹  Ting Ji¹  Zhen Hou¹  Rong Wen¹  Yi Wei² 

[1] College of Physics and Optoelectronics, Key Laboratory of Interface Science and Engineering in Advanced Materials, Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education, Taiyuan University of Technology, 030024, Taiyuan, China;Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), Dalian University of Technology, 116024, Dalian, China;

关键词: Transfer printing;    Perovskite nanocavities;    Laser;    Thermal release tape;   

DOI  :  10.1186/s11671-021-03646-4

来源: Springer

【 摘 要 】

The outstanding optoelectrical properties and high-quality factor of whispering gallery mode perovskite nanocavities make it attractive for applications in small lasers. However, efforts to make lasers with better performance have been hampered by the lack of efficient methods for the synthesis and transfer of perovskite nanocavities on desired substrate at quality required for applications. Here, we report transfer printing of perovskite nanocavities grown by chemical vapor deposition from mica substrate onto SiO2 substrate. Transferred perovskite nanocavity has an RMS roughness of ~ 1.2 nm and no thermal degradation in thermal release process. We further use femtosecond laser to excite a transferred perovskite nanocavity and measures its quality factor as high as 2580 and a lasing threshold of 27.89 μJ/cm2 which is almost unchanged as compared with pristine perovskite nanocavities. This method represents a significant step toward the realization of perovskite nanolasers with smaller sizes and better heat management as well as application in optoelectronic devices.

【 授权许可】

CC BY