Microstructural analysis and optical properties of Cs2BiAgBr6 halide double perovskite single crystals

O. A. Lozhkina; A. A. Murashkina; M. S. Elizarov; V. V. Shilovskikh; A. A. Zolotarev; Yu. V. Kapitonov; R. Kevorkyants; A. V. Emeline; T. Miyasaka

doi:10.1016/j.cplett.2018.01.031

Microstructural analysis and optical properties of Cs2BiAgBr6 halide double perovskite single crystals

Mesoscale and Nanoscale Physics 2018-03-14 v1 Materials Science

Authors: O. A. Lozhkina , A. A. Murashkina , M. S. Elizarov , V. V. Shilovskikh , A. A. Zolotarev , Yu. V. Kapitonov , R. Kevorkyants , A. V. Emeline , T. Miyasaka

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Single crystals of Cs2BiAgBr6 lead-free perovskite were grown by crystallization from supersaturated solution. According to characterization by XRD and EBSD methods the double perovskite single crystal are of the cubic Fm-3m symmetry with the lattice constant a = 11.20 {\AA}. DFT predictions based on the single crystal X-ray diffraction analysis reveal that the material is an indirect band gap semiconductor. Low temperature (1.4 K) photoluminescence spectra demonstrate three broadened bands that correspond to two lowest computed indirect and one direct band-to-band transitions.

Keywords

halide double perovskite single crystal Cs2BiAgBr6 XRD EBSD DFT photoluminescence band gap

Cite

@article{arxiv.1711.08148,
  title  = {Microstructural analysis and optical properties of Cs2BiAgBr6 halide double perovskite single crystals},
  author = {O. A. Lozhkina and A. A. Murashkina and M. S. Elizarov and V. V. Shilovskikh and A. A. Zolotarev and Yu. V. Kapitonov and R. Kevorkyants and A. V. Emeline and T. Miyasaka},
  journal= {arXiv preprint arXiv:1711.08148},
  year   = {2018}
}

Microstructural analysis and optical properties of Cs2BiAgBr6 halide double perovskite single crystals

Abstract

Keywords

Cite

Related papers