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  • International Photonics and OptoElectronics Meeting 2019 (OFDA, OEDI, ISST, PE, LST, TSA)
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper PTu3E.6
  • https://doi.org/10.1364/PFE.2019.PTu3E.6

Thermochromic Lead-free Halide Double Perovskites

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Abstract

Thermochromic lead-free double perovskites Cs2AgBiBr6 are demonstrated. The anharmonic fluctuations and associated strong electron-phonon coupling, combined with the spin-orbit coupling effect, are responsible for the thermochromism. Our findings provide new insights for the development of optoelectronic devices based on double perovskites.

© 2019 The Author(s)

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