Strain-Induced Band-Edge Modulation in Lead-Free Antimony-Based Double Perovskite for Visible-Light Absorption

Anupriya Singh, Rajneesh Chaurasiya, Amarnath Bheemaraju, Jen Sue Chen, Soumitra Satapathi

研究成果: Review article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Herein, we synthesized Sb-based single crystals (SCs) of Cs2AgSbCl6with an impressive low bandgap of ∼1.82 eV and demonstrated the effect of strain on optical properties. Interestingly, the polycrystalline ground powder and the heated SCs of Cs2AgSbCl6exhibited a larger bandgap of ∼2.55 eV. The reduction of bandgap is attributed to the existence of strain in the SC as confirmed by X-ray diffraction and Raman spectroscopy and supported by density functional theory (DFT) calculations. The strain engineering for bandgap reduction can play a pivotal role for developing low-bandgap lead-free double perovskite for environmentally friendly solar cell applications.

原文English
頁(從 - 到)3926-3932
頁數7
期刊ACS Applied Energy Materials
5
發行號4
DOIs
出版狀態Published - 2022 4月 25

All Science Journal Classification (ASJC) codes

  • 化學工程(雜項)
  • 能源工程與電力技術
  • 電化學
  • 電氣與電子工程
  • 材料化學

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