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Title: High-Pressure Study of Perovskite-Like Organometal Halide: Band-Gap Narrowing and Structural Evolution of [NH3-(CH2)4-NH3]CuCl4

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [2];  [3];  [4];  [5]; ORCiD logo [3]
  1. Jilin Univ., Changchun (China); South Univ. of Science and Technology of China, Guangdong (China); Carnegie Inst. of Washington, Argonne, IL (United States)
  2. China Academy of Engineering Physics, Mianyang (China)
  3. Jilin Univ., Changchun (China)
  4. South Univ. of Science and Technology of China, Guangdong (China)
  5. Carnegie Inst. of Washington, Argonne, IL (United States)

Searching for nontoxic and stable perovskite-like alternatives to lead-based halide perovskites for photovoltaic application is one urgent issue in photoelectricity science. Such exploration inevitably requires an effective method to accurately control both the crystalline and electronic structures. This work applies high pressure to narrow the band gap of perovskite-like organometal halide, [NH3-(CH2)4-NH3]CuCl4 (DABCuCl4), through the crystalline-structure tuning. The band gap keeps decreasing below ~12 GPa, involving the shrinkage and distortion of CuCl42–. Inorganic distortion determines both band-gap narrowing and phase transition between 6.4 and 10.5 GPa, and organic chains function as the spring cushion, evidenced by the structural transition at ~0.8 GPa. The supporting function of organic chains protects DABCuCl4 from phase transition and amorphization, which also contributes to the sustaining band-gap narrowing. Lastly, this work combines crystal structure and macroscopic property together and offers new strategies for the further design and synthesis of hybrid perovskite-like alternatives.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-06CH11357; NA0001974; FG02-99ER45775
OSTI ID:
1342245
Journal Information:
Journal of Physical Chemistry Letters, Vol. 8, Issue 2; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 48 works
Citation information provided by
Web of Science

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Cited By (9)

High Compression‐Induced Conductivity in a Layered Cu–Br Perovskite journal January 2020
Preface: Two dimensional (2D) hybrid organic-inorganic perovskites journal November 2018
Structural phase transition, electrical and semiconducting properties in a lead‐free 2D hybrid perovskite‐like compound: [Cl‐(CH 2 ) 2 ‐NH 3 ] 2 [CuCl 4 ] journal December 2019
Pressure-Induced Wide-Range Reversible Emission Shift of Triphenylamine-Substituted Anthracene via Hybridized Local and Charge Transfer (HLCT) Excited State journal December 2017
High‐Pressure Band‐Gap Engineering and Metallization in the Perovskite Derivative Cs 3 Sb 2 I 9 journal July 2019
High Compression‐Induced Conductivity in a Layered Cu–Br Perovskite journal January 2020
Pressure-induced effects in the inorganic halide perovskite CsGeI 3 journal January 2019
Negative area compressibility of a hydrogen-bonded two-dimensional material journal January 2019
Pressure-induced structural evolution, optical and electronic transitions of nontoxic organometal halide perovskite-based methylammonium tin chloride journal December 2017