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Parity-Forbidden Transitions and Their Impact on the Optical Absorption Properties of Lead-Free Metal Halide Perovskites and Double Perovskites

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [2];  [2];  [3];  [4];  [2]
  1. Department of Physics and Astronomy and Wright Center for Photovoltaic Innovation and Commercialization, The University of Toledo, Toledo, Ohio 43606, United States; School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nano-structures, and Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
  2. Department of Physics and Astronomy and Wright Center for Photovoltaic Innovation and Commercialization, The University of Toledo, Toledo, Ohio 43606, United States
  3. School of Physics and Technology, Center for Electron Microscopy, MOE Key Laboratory of Artificial Micro- and Nano-structures, and Institute for Advanced Studies, Wuhan University, Wuhan 430072, China; Science and Technology of High Strength Structural Materials Laboratory, Central South University, Changsha 410083, China
  4. Department of Mechanical Engineering and Materials Science and Department of Chemistry, Duke University, Durham, North Carolina 27708, United States

Using density functional theory calculations, we analyze the optical absorption properties of lead (Pb)-free metal halide perovskites (AB2+X3) and double perovskites (A2B+B3+X6) (A = Cs or monovalent organic ion, B2+ = non-Pb divalent metal, B+ = monovalent metal, B3+ = trivalent metal, X = halogen). We show that if B2+ is not Sn or Ge, Pb-free metal halide perovskites exhibit poor optical absorptions because of their indirect band gap nature. Among the nine possible types of Pb-free metal halide double perovskites, six have direct band gaps. Of these six types, four show inversion symmetry-induced parity-forbidden or weak transitions between band edges, making them not ideal for thin-film solar cell applications. Only one type of Pb-free double perovskite shows optical absorption and electronic properties suitable for solar cell applications, namely, those with B+ = In, Tl and B3+ = Sb, Bi. Our results provide important insights for designing new metal halide perovskites and double perovskites for optoelectronic applications.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC)
Grant/Contract Number:
EE0006712; AC02-05CH11231
OSTI ID:
1483858
Alternate ID(s):
OSTI ID: 1559769
Journal Information:
Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Journal Issue: 13 Vol. 8; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (59)

Unique Properties of Halide Perovskites as Possible Origins of the Superior Solar Cell Performance journal May 2014
Bismuth Based Hybrid Perovskites A 3 Bi 2 I 9 (A: Methylammonium or Cesium) for Solar Cell Application journal September 2015
Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22% journal August 2016
Thermodynamic Stability and Defect Chemistry of Bismuth-Based Lead-Free Double Perovskites journal August 2016
Low-temperature crystal growth of Cs2LiLuCl6-II and Cs2KScCl6 under reducing conditions and their structural refinement journal April 1986
Organic–inorganic bismuth (III)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites journal January 2016
The ultraviolet absorption edge of stannic oxide (SnO2) journal December 1964
Pseudopotentials for high-throughput DFT calculations journal January 2014
Thin-Film Preparation and Characterization of Cs 3 Sb 2 I 9 : A Lead-Free Layered Perovskite Semiconductor journal August 2015
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
Cs 2 AgBiX 6 (X = Br, Cl): New Visible Light Absorbing, Lead-Free Halide Perovskite Semiconductors journal February 2016
Thin-Film Deposition and Characterization of a Sn-Deficient Perovskite Derivative Cs 2 SnI 6 journal March 2016
Viability of Lead-Free Perovskites with Mixed Chalcogen and Halogen Anions for Photovoltaic Applications journal March 2016
Double Perovskite Cs 2 BBiX 6 (B = Ag, Cu; X = Br, Cl)/TiO 2 Heterojunction: An Efficient Pb-Free Perovskite Interface for Charge Extraction journal February 2017
Photovoltaic Properties of Two-Dimensional (CH 3 NH 3 ) 2 Pb(SCN) 2 I 2 Perovskite: A Combined Experimental and Density Functional Theory Study journal March 2016
Lead-Free Halide Double Perovskites via Heterovalent Substitution of Noble Metals journal March 2016
Band Gaps of the Lead-Free Halide Double Perovskites Cs 2 BiAgCl 6 and Cs 2 BiAgBr 6 from Theory and Experiment journal June 2016
Symmetry-Based Tight Binding Modeling of Halide Perovskite Semiconductors journal September 2016
Cs 2 InAgCl 6 : A New Lead-Free Halide Double Perovskite with Direct Band Gap journal January 2017
Can Pb-Free Halide Double Perovskites Support High-Efficiency Solar Cells? journal October 2016
Toward Lead-Free Perovskite Solar Cells journal November 2016
Synthesis and Properties of Charge-Ordered Thallium Halide Perovskites, CsTl + 0.5 Tl 3+ 0.5 X 3 (X = F or Cl): Theoretical Precursors for Superconductivity? journal October 2013
Preparation of cubic chloro complex compounds of trivalent metals: Cs2NaMCl6 journal July 1970
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells journal May 2009
A Bismuth-Halide Double Perovskite with Long Carrier Recombination Lifetime for Photovoltaic Applications journal February 2016
Fabrication of Efficient Formamidinium Tin Iodide Perovskite Solar Cells through SnF 2 –Pyrazine Complex journal March 2016
Defect Tolerance to Intolerance in the Vacancy-Ordered Double Perovskite Semiconductors Cs 2 SnI 6 and Cs 2 TeI 6 journal June 2016
Design of Lead-Free Inorganic Halide Perovskites for Solar Cells via Cation-Transmutation journal February 2017
Intrinsic Instability of Cs 2 In(I)M(III)X 6 (M = Bi, Sb; X = Halogen) Double Perovskites: A Combined Density Functional Theory and Experimental Study journal April 2017
Superior Photovoltaic Properties of Lead Halide Perovskites: Insights from First-Principles Theory journal February 2015
Importance of Spin–Orbit Coupling in Hybrid Organic/Inorganic Perovskites for Photovoltaic Applications journal August 2013
Compositional engineering of perovskite materials for high-performance solar cells journal January 2015
Lead-free solid-state organic–inorganic halide perovskite solar cells journal May 2014
Lead-free organic–inorganic tin halide perovskites for photovoltaic applications journal January 2014
Halide perovskite materials for solar cells: a theoretical review journal January 2015
Theoretical insights into a potential lead-free hybrid perovskite: substituting Pb 2+ with Ge 2+ journal January 2016
The synthesis, structure and electronic properties of a lead-free hybrid inorganic–organic double perovskite (MA) 2 KBiCl 6 (MA = methylammonium) journal January 2016
Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality journal January 2017
Exploring the properties of lead-free hybrid double perovskites using a combined computational-experimental approach journal January 2016
Hybrid functionals based on a screened Coulomb potential journal May 2003
Influence of the exchange screening parameter on the performance of screened hybrid functionals journal December 2006
Synthesis, crystal structure, and properties of a perovskite-related bismuth phase, (NH 4 ) 3 Bi 2 I 9 journal March 2016
Phase transition in a chloro-elpasolite, Cs 2 KInCl 6 journal October 1988
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Ab initiomolecular dynamics for liquid metals journal January 1993
Projector augmented-wave method journal December 1994
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Nature of the band gap of Tl 2 O 3 journal June 2011
Electronic band structure trends of perovskite halides: Beyond Pb and Sn to Ge and Si journal May 2016
Nature of the Band Gap of In 2 O 3 Revealed by First-Principles Calculations and X-Ray Spectroscopy journal April 2008
Generalized Gradient Approximation Made Simple journal October 1996
Bipolar Doping and Band-Gap Anomalies in Delafossite Transparent Conductive Oxides journal January 2002
Crystal structure of Cs 2 NaBiCl 6 journal February 1972
Interface engineering of highly efficient perovskite solar cells journal July 2014
High-performance photovoltaic perovskite layers fabricated through intramolecular exchange journal May 2015
Reproducibility in density functional theory calculations of solids journal March 2016
Quantum dot-induced phase stabilization of  -CsPbI3 perovskite for high-efficiency photovoltaics journal October 2016
Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance journal September 2016

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A pencil-and-paper method for elucidating halide double perovskite band structures journal January 2019
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“Unleaded” Perovskites: Status Quo and Future Prospects of Tin‐Based Perovskite Solar Cells journal September 2018
From Lead Halide Perovskites to Lead‐Free Metal Halide Perovskites and Perovskite Derivatives journal January 2019
Materials Design of Solar Cell Absorbers Beyond Perovskites and Conventional Semiconductors via Combining Tetrahedral and Octahedral Coordination journal March 2019
Inorganic and Layered Perovskites for Optoelectronic Devices journal September 2018
Theoretical Prediction of Chiral 3D Hybrid Organic–Inorganic Perovskites journal March 2019
All‐Inorganic CsCu 2 I 3 Single Crystal with High‐PLQY (≈15.7%) Intrinsic White‐Light Emission via Strongly Localized 1D Excitonic Recombination journal September 2019
Manipulation of Bi 3+ /In 3+ Transmutation and Mn 2+ ‐Doping Effect on the Structure and Optical Properties of Double Perovskite Cs 2 NaBi 1‐ x In x Cl 6 journal February 2019
Machine Learning Augmented Discovery of Chalcogenide Double Perovskites for Photovoltaics journal March 2019
Machine Learning Augmented Discovery of Chalcogenide Double Perovskites for Photovoltaics journal November 2019
Design of Mixed‐Cation Tri‐Layered Pb‐Free Halide Perovskites for Optoelectronic Applications journal May 2019
Progress in Theoretical Study of Metal Halide Perovskite Solar Cell Materials journal August 2017
Progress of Lead‐Free Halide Double Perovskites journal January 2019
Stable Dynamics Performance and High Efficiency of ABX 3 ‐Type Super‐Alkali Perovskites First Obtained by Introducing H 5 O 2 Cation journal June 2019
Chemical Origin of the Stability Difference between Copper(I)- and Silver(I)-Based Halide Double Perovskites journal August 2017
Small-Band-Gap Halide Double Perovskites journal August 2018
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Small-Band-Gap Halide Double Perovskites journal August 2018
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Recent Developments in Lead‐Free Double Perovskites: Structure, Doping, and Applications journal December 2019
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Perovskite Solar Absorbers: Materials by Design journal March 2018
Structurally Stabilizing and Environment Friendly Triggers: Double‐Metallic Lead‐Free Perovskites journal May 2019
Lead‐Free Double Perovskites for Perovskite Solar Cells journal August 2019
X-ray scintillation in lead-free double perovskite crystals journal August 2018
Size effect of lead-free halide double perovskite on luminescence property journal July 2019
A Review on Eco-Friendly Quantum Dot Solar Cells: Materials and Manufacturing Processes journal April 2018
Efficient and stable emission of warm-white light from lead-free halide double perovskites journal November 2018
Composition design, optical gap and stability investigations of lead-free halide double perovskite Cs 2 AgInCl 6 journal January 2017
Manipulation of cation combinations and configurations of halide double perovskites for solar cell absorbers journal January 2018
Rational chemical doping of metal halide perovskites journal January 2019
Perovskites with d-block metals for solar energy applications journal January 2019
Pressure-induced structural transition and band gap evolution of double perovskite Cs 2 AgBiBr 6 nanocrystals journal January 2019
Quasiparticle effects on the linear and nonlinear susceptibility of ZnGeP 2 journal January 2019
Electronic, magnetic and optical properties of MnPX 3 (X = S, Se) monolayers with and without chalcogen defects: a first-principles study journal January 2020
Diperovskite (NH 4 ) 3 FeF 6 /graphene nanocomposites for superior Na-ion storage journal January 2019
Two-dimensional lead-free halide perovskite materials and devices journal January 2019
Dimensional reduction of the small-bandgap double perovskite Cs 2 AgTlBr 6 journal January 2020
Impacts of cation ordering on bandgap dispersion of double perovskites journal August 2018
Research progress on organic–inorganic halide perovskite materials and solar cells journal February 2018
Cs 2 TlBiI 6 : a new lead-free halide double perovskite with direct band gap journal August 2019
Recent progress in Pb-free stable inorganic double halide perovskites journal July 2018
Mechanochemical synthesis of the lead-free double perovskite Cs 2 [AgIn]Br 6 and its optical properties journal January 2019
Optoelectronic Properties and Defect Physics of Lead-Free Photovoltaic Absorbers Cs 2 Au I Au III X 6 ( X = I , Br ) journal January 2020
Double perovskites overtaking the single perovskites: A set of new solar harvesting materials with much higher stability and efficiency journal May 2018
Double Perovskites overtaking the single perovskites : A set of new solar harvesting materials with much higher stability and efficiency text January 2018

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