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Title: Tunable Perovskite-Derived Bismuth Halides: Cs3Bi2(Cl1–xIx)9

Journal Article · · Inorganic Chemistry

Bismuth-based perovskites are of interest as safer alternatives to lead-based optoelectronic materials. Prior studies have reported on the compounds Cs3Bi2Cl9, Cs3Bi2I9, and Cs3Bi2Cl3I6. Here we examine a range of compounds of the formula Cs3Bi2(Cl1–xIx)9, where x takes values from 0.09 to 0.52. Powder and single-crystal X-ray diffraction were used to determine that all of these compounds adopt the layered vacancy-ordered perovskite structure observed for Cs3Bi2Cl3I6, which is also the high-temperature phase of Cs3Bi2Cl9. We find that, even with very small iodine incorporation, the structure is switched to that of Cs3Bi2Cl3I6, with I atoms displaying a distinct preference for the capping sites on the BiX6 octahedra. Optical absorption spectroscopy was employed to study the evolution of optical properties of these materials, and this is complemented by density functional theory electronic structure calculations. Finally, three main absorption features were observed for these compounds, and with increasing x, the lowest-energy features are red-shifted.

Research Organization:
Univ. of California, Santa Barbara, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0012541; DMR 1720256; CNS-1725797; DMR-1720256; DGE-1650114
OSTI ID:
1802374
Journal Information:
Inorganic Chemistry, Vol. 59, Issue 6; ISSN 0020-1669
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (35)

Generalized Gradient Approximation Made Simple journal October 1996
On the theory of order–disorder (OD) structures journal February 1961
Structural studies of CsKBi mixed chlorides relation to the crystal structures of A2BMX6, A3MX6, and A2MX6 journal November 1986
Lead-Free Organic-Inorganic Hybrid Perovskites for Photovoltaic Applications: Recent Advances and Perspectives journal February 2017
Electronic structure and photovoltaic application of BiI 3 journal September 2015
Projector augmented-wave method journal December 1994
Bismuth Based Hybrid Perovskites A 3 Bi 2 I 9 (A: Methylammonium or Cesium) for Solar Cell Application journal September 2015
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
LOBSTER: A tool to extract chemical bonding from plane-wave based DFT: Tool to Extract Chemical Bonding journal February 2016
Zur Kenntnis der Hochtemperatur-Phasenumwandlug bei Cs3Bi2Cl9 journal September 1980
From 0D Cs 3 Bi 2 I 9 to 2D Cs 3 Bi 2 I 6 Cl 3 : Dimensional Expansion Induces a Direct Band Gap but Enhances Electron–Phonon Coupling journal March 2019
Formation of highly luminescent cesium bismuth halide perovskite quantum dots tuned by anion exchange journal January 2018
Quantifying the Potential for Lead Pollution from Halide Perovskite Photovoltaics journal August 2015
Organic–Inorganic Perovskites: Structural Versatility for Functional Materials Design journal March 2016
TOPAS and TOPAS-Academic : an optimization program integrating computer algebra and crystallographic objects written in C++ journal February 2018
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality journal January 2017
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Toxicity of organometal halide perovskite solar cells journal February 2016
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
All-Inorganic Bismuth-Based Perovskite Quantum Dots with Bright Blue Photoluminescence and Excellent Stability journal November 2017
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
Perovskite-like modification of Cs3Sb2I9 as a member of theOD family A3B2X9 journal July 1999
Crystal and Electronic Structures of Complex Bismuth Iodides A 3 Bi 2 I 9 ( A = K, Rb, Cs) Related to Perovskite: Aiding the Rational Design of Photovoltaics journal October 2015
Crystal orbital Hamilton populations (COHP): energy-resolved visualization of chemical bonding in solids based on density-functional calculations journal August 1993
Erratum: “Hybrid functionals based on a screened Coulomb potential” [J. Chem. Phys. 118, 8207 (2003)] journal June 2006
Present status and future prospects of perovskite photovoltaics journal April 2018
Analytic projection from plane-wave and PAW wavefunctions and application to chemical-bonding analysis in solids journal September 2013
Structural Diversity in Cesium Bismuth Halide Nanocrystals journal June 2019
OLEX2 : a complete structure solution, refinement and analysis program journal January 2009
An effective approach of vapour assisted morphological tailoring for reducing metal defect sites in lead-free, (CH3NH3)3Bi2I9 bismuth-based perovskite solar cells for improved performance and long-term stability journal July 2018
Crystal Orbital Hamilton Population (COHP) Analysis As Projected from Plane-Wave Basis Sets journal June 2011
Optoelectronic and photovoltaic properties of the air-stable organohalide semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9 journal January 2016
Cesium Lead Mixed-Halide Perovskites for Low-Energy Loss Solar Cells with Efficiency Beyond 17% journal June 2019
Chemical and Structural Diversity of Hybrid Layered Double Perovskite Halides journal November 2019