An All-Inorganic Perovskite-Phase Rubidium Lead Bromide Nanolaser

Bing Tang; Yingjie Hu; Hongxing Dong; Liaoxin Sun; Binbin Zhao; Xiongwei Jiang; Long Zhang

doi:10.1002/anie.201910617

An All-Inorganic Perovskite-Phase Rubidium Lead Bromide Nanolaser

Angew Chem Int Ed Engl. 2019 Nov 4;58(45):16134-16140. doi: 10.1002/anie.201910617. Epub 2019 Sep 24.

Authors

Bing Tang^{1

2}, Yingjie Hu³, Hongxing Dong¹, Liaoxin Sun⁴, Binbin Zhao⁴, Xiongwei Jiang¹, Long Zhang^{1

5}

Affiliations

¹ Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China.
² Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
³ Key Laboratory of Advanced Functional Materials of Nanjing, Nanjing Xiaozhuang University, Nanjing, 211171, China.
⁴ National Lab for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China.
⁵ IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai, 200240, China.

PMID: 31502363
DOI: 10.1002/anie.201910617

Abstract

Rubidium lead halides (RbPbX₃ ), an important class of all-inorganic metal halide perovskites, are attracting increasing attention for photovoltaic applications. However, limited by its lower Goldschmidt tolerance factor t≈0.78, all-inorganic RbPbBr₃ has not been reported. Now, the crystal structure, X-ray diffraction (XRD) pattern, and band structure of perovskite-phase RbPbBr₃ has now been investigated. Perovskite-phase RbPbBr₃ is unstable at room temperature and transforms to photoluminescence (PL)-inactive non-perovskite. The structural evolution and mechanism of the perovskite-non-perovskite phase transition were clarified in RbPbBr₃ . Experimentally, perovskite-phase RbPbBr₃ was realized through a dual-source chemical vapor deposition and annealing process. These perovskite-phase microspheres showed strong PL emission at about 464 nm. This new perovskite can serve as a gain medium and microcavity to achieve broadband (475-540 nm) single-mode lasing with a high Q of about 2100.

Keywords: all-inorganic perovskite phases; nanolasers; rubidium lead bromide.

Abstract

Grants and funding