Highly tunable properties in pressure-treated two-dimensional Dion–Jacobson perovskites | Zendy

Lingping Kong | Zendy; Gang Liu | Zendy; Jue Gong | Zendy; Lingling Mao | Zendy; Mengting Chen | Zendy; Qingyang Hu | Zendy; Xujie Lü | Zendy; Wenge Yang | Zendy; Mercouri G. Kanatzidis | Zendy; Hokwang Mao | Zendy

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Highly tunable properties in pressure-treated two-dimensional Dion–Jacobson perovskites

Author(s) -

Lingping Kong,

Gang Liu,

Jue Gong,

Lingling Mao,

Mengting Chen,

Qingyang Hu,

Xujie Lü,

Wenge Yang,

Mercouri G. Kanatzidis,

Hokwang Mao

Publication year - 2020

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.2003561117

Subject(s) - perovskite (structure) , halide , amorphous solid , materials science , ambient pressure , high pressure , enhanced data rates for gsm evolution , nanotechnology , chemical physics , engineering physics , chemistry , crystallography , computer science , inorganic chemistry , thermodynamics , physics , telecommunications

Significance Two-dimensional Dion–Jacobson (2D D-J) lead-halide perovskite is a cutting-edge material paradigm that has realized high-efficiency photovoltaic applications and synergetic chemical stability. With the addition of the pressure dimension, this material provides a crucial platform for studying both pressure-tailored physical properties and pressure-driven novel phenomena. Here, we demonstrate that 2D D-J perovskites experience various transitions under pressure, such as crystalline-amorphous and 2D–three-dimensional structural transformation, and the probable metallization are strongly suggested. Moreover, the fundamental changes in the material properties are observed at ambient conditions after pressure treatment, which is crucial for achieving the desired characteristics for viable applications.

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