TY - JOUR
T1 - Continuous-Wave Vertical Cavity Surface-Emitting Lasers based on Single Crystalline Lead Halide Perovskites
AU - Zhang, Hongbo
AU - Zou, Chenji
AU - Chen, Yu
AU - Wu, Lishu
AU - Wen, Wen
AU - Du, Bowen
AU - Feng, Shun
AU - Shang, Jingzhi
AU - Cong, Chunxiao
AU - Yu, Ting
N1 - Funding Information:
H.Z. and C.Z. contributed equally to this work. This work was mainly supported by the National Natural Science Foundation of China (grant no. 61774040 and 11774170), the National Key R&D Program of China (grant no. 2018YFA0703700), the Shanghai Municipal Science and Technology Commission (grant no. 18JC1410300), the Fudan University‐CIOMP Joint Fund (grant no. FC2018‐002), the National Young 1000 Talent Plan of China, the Shanghai Municipal Natural Science Foundation (grant no. 20ZR1403200), Singapore Ministry of Education (MOE) Tier 1 (RG 93/19), Tier 2 (MOE2018‐T2‐2‐072 and MOE 2019‐T2‐1‐044), Singapore National Research Foundation (NRF) (NRF‐CRP‐21‐2018‐0007). J.S. appreciates the support of the Fundamental Research Funds for the Central Universities of China, National Natural Science Foundation of China (grant no. 61904151), Natural Science Foundation of Shaanxi (grant no. 2020JM‐108), and the Joint Research Funds of Department of Science & Technology of Shaanxi Province and Northwestern Polytechnical University (no. 2020GXLH‐Z‐020). S.F. is supported by H2020 Marie Skłodowska‐Curie Actions (no. 101031596 ‐ SingExTr ‐ MSCA‐IF‐EF‐ST).
Publisher Copyright:
© 2021 Wiley-VCH GmbH
PY - 2021/7/5
Y1 - 2021/7/5
N2 - Lead halide perovskites are intriguing semiconductors for lasers due to high quantum yield, tunable bandgaps, and facile solution-process ability. However, limited by the weak optical confinement, continuous-wave (CW) pumped lasing, as one prerequisite for the electrically pumped lasing, is still challenging in bare lead halide perovskites without high-quality factor (Q) artificial optical cavity. Herein, the lasing emission in methylammonium lead tribromide (MAPbBr3) incorporated with a vertical microcavity under continuous pumping at 80 K is reported. The single-crystalline MAPbBr3 perovskite nanoplates are fabricated by the two-step solution method. The MAPbBr3-based vertical cavity surface-emitting laser (VCSEL) presents a low threshold of 55.2 W cm−2 and a high Q-factor of 1140 at low temperature. The low threshold lasing emission can be attributed to strong optical confinement in the high-Q cavity and great photoluminescence enhancement at 80 K, which is induced by a transition from tetragonal to orthorhombic phase, demonstrated by in situ temperature Raman spectroscopy. These findings envisage the prospective applications of single-crystalline metal halide perovskites in practicable laser devices.
AB - Lead halide perovskites are intriguing semiconductors for lasers due to high quantum yield, tunable bandgaps, and facile solution-process ability. However, limited by the weak optical confinement, continuous-wave (CW) pumped lasing, as one prerequisite for the electrically pumped lasing, is still challenging in bare lead halide perovskites without high-quality factor (Q) artificial optical cavity. Herein, the lasing emission in methylammonium lead tribromide (MAPbBr3) incorporated with a vertical microcavity under continuous pumping at 80 K is reported. The single-crystalline MAPbBr3 perovskite nanoplates are fabricated by the two-step solution method. The MAPbBr3-based vertical cavity surface-emitting laser (VCSEL) presents a low threshold of 55.2 W cm−2 and a high Q-factor of 1140 at low temperature. The low threshold lasing emission can be attributed to strong optical confinement in the high-Q cavity and great photoluminescence enhancement at 80 K, which is induced by a transition from tetragonal to orthorhombic phase, demonstrated by in situ temperature Raman spectroscopy. These findings envisage the prospective applications of single-crystalline metal halide perovskites in practicable laser devices.
KW - continuous-wave lasing
KW - lead halide perovskites
KW - phase transitions
KW - Raman spectroscopy
KW - VCSEL
UR - http://www.scopus.com/inward/record.url?scp=85104980308&partnerID=8YFLogxK
U2 - 10.1002/adom.202001982
DO - 10.1002/adom.202001982
M3 - Article
AN - SCOPUS:85104980308
SN - 2195-1071
VL - 9
JO - Advanced Optical Materials
JF - Advanced Optical Materials
IS - 13
M1 - 2001982
ER -