Details

Autor(en) / Beteiligte

• Huang, Qingyi
• Li, Zhe
• Chen, Xiayan
• Xia, Yongkang
• Zheng, Ziwei
• Mei, Anyi
• Zhu, Kai
• Hu, Yue
• Wang, Ti
• Rong, Yaoguang
• Han, Hongwei

Titel

Investigating the iodide and bromide ion exchange in metal halide perovskite single crystals and thin films

Ist Teil von

• Chemical communications (Cambridge, England), 2021-06, Vol.57 (5), p.6125-6128

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The anion exchange between MAPbX 3 (X = I − or Br − ) and MAX salts in a solution environment is investigated. We find that I − can enter MAPbBr 3 single crystals (SC) in millimeter scale, while Br − can only penetrate the surface of MAPbI 3 SC in a micrometer scale. Due to the lattice variation, the reaction is partially reversible. Anion exchange can occur between MAPbX 3 (X = I − or Br − ) and MAX salts in a solution environment. Due to the lattice variation, I − and Br − show different intrusion behaviors, making the reaction partially reversible.