High elasticity of CsPbBr3 perovskite nanowires for flexible electronics

Xiaocui Li, You Meng, Rong Fan, Sufeng Fan, Chaoqun Dang, Xiaobin Feng, Johnny C. Ho, Yang Lu

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Due to the enhanced ambient structural stability and excellent optoelectronic properties, all-inorganic metal halide perovskite nanowires have become one of the most attractive candidates for flexible electronics, photovoltaics and optoelectronics. Their elastic property and mechanical robustness become the key factors for device applications under realistic service conditions with various mechanical loadings. Here, we demonstrate that high tensile elastic strain (∼ 4% to ∼ 5.1%) can be achieved in vapor-liquid-solid-grown single-crystalline CsPbBr3 nanowires through in situ scanning electron microscope (SEM) buckling experiments. Such high flexural elasticity can be attributed to the structural defect-scarce, smooth surface, single-crystallinity and nanomechanical size effect of CsPbBr3 nanowires. The mechanical reliability of CsPbBr3 nanowire-based flexible photodetectors was examined by cyclic bending tests, with no noticeable performance deterioration observed after 5,000 cycles. The above results suggest great application potential for using all-inorganic perovskite nanowires in flexible electronics and energy harvesting systems. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)4033-4037
Number of pages5
JournalNano Research
Issue number11
Publication statusPublished - Nov 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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