Recent promise of lead-free halide perovskites in optoelectronic applications

Wang, Aili; Zuo, Chuantian; Niu, Xiaobin; Ding, Liming; Ding, Jianning; Hao, Feng

doi:10.1016/j.cej.2022.138926

Cited by 52 publications

(37 citation statements)

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“…; M = Ag + , K + , Li + ; M' = Sb 3+ , In 3+ or Bi 3+ and X = I À , Br À or Cl À ) double perovskites have become an object of significant interest due to their environmental and structural stability, low toxicity, defect tolerance, and exceptional optoelectronic properties. [1][2][3][4][5][6] These qualities have made them increasingly popular in applications such as solar cells, X-ray detectors, photodetectors, and photocatalysts. [7][8][9][10] Achieving high-performance for these applications often requires the use of high-quality perovskite single crystals (SCs).…”

Section: Introductionmentioning

confidence: 99%

Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

Bechir

Znaidia

2023

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

Bechir

Znaidia

2023

Phys. Chem. Chem. Phys.

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“…While recently excellent review works have been done to summarize the research progress in all-inorganic Pb-based PSCs [28][29][30][31][32][33] and all-inorganic Pb-free PSCs [34][35][36][37] from the perspective of stability and efficiency enhancements, this mini-review mainly focuses on the updated development of all-inorganic Pb-less or Pb-free PSCs via the strategy of mixed group IVA cations, which can represent a new angle of view. In this work, we will first provide a fundamental discussion of perovskites with mixed group IVA cations regarding their crystal and electronic band structures, then summarize the film optimization strategies for the resulting PSCs, and finally indicate promising research directions for developing all-inorganic perovskite solar cells featuring mixed group IVA cations.…”

Section: Introductionmentioning

confidence: 99%

All-inorganic perovskite solar cells featuring mixed group IVA cations

Yang

Guo

et al. 2023

Nanoscale

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“…[ 34 ] Based on the hydrogenated Cs 2 AgBiBr 6 (HCABB) films, they fabricated the DPSCs with the structure of ITO/SnO 2 /HCABB/Spiro‐OMeTAD/Au, which exhibit a PCE of 6.37%, [ 34 ] a record so far in the Cs 2 AgBiBr 6 DPSCs, [ 25–55 ] even the highest record in all types of DPSCs. [ 56–59 ] More importantly, their experimental results show that the HCABB‐based DPSCs possess excellent optical and thermal stability. [ 34 ] However, its poor energy band alignment and thin absorber layer thickness prevent HCABB from realizing its full photovoltaic potential.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Exploration of a Lead‐Free All‐Inorganic Hydrogenated Cs₂AgBiBr₆‐Based Double Perovskite Solar Cell: A Numerical Modeling Study

Zhou

Wang

et al. 2023

Solar RRL

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Research on organic-inorganic lead halide perovskite solar cells (PSCs) has developed rapidly in the last decade, with energy conversion efficiency (PCE) increasing from 3.8% in 2009 to 25.7% in 2022, [1][2][3] which is an unprecedented rate of development in the photovoltaic (PV) field. Owing to the superior properties of perovskite materials, such as suitable and tunable bandgap, long carrier diffusion length and lifetime, high optical absorption coefficient, high charge carrier mobility, and simple solution processing, PSCs have the potential to compete with the traditional crystalline silicon, CdTe, and organic solar cells in terms of both performance and cost. [2,4,5] Unfortunately, there are still two unresolved issues on the road to the actual commercialization of PSCs: one is the toxicity due to the presence of lead ions, and the other is the intrinsic instability due to the volatility of the organic components. [2,[6][7][8] To overcome the intrinsic instability of perovskite, an intuitive and valid approach is replacing the A-site organic cation (e.g., MA þ and FA þ ) in the traditional organic-inorganic perovskite ABX 3 with an inorganic cation (e.g., Cs þ ), which can increase the decomposition energy of perovskite and thus enhance the intrinsic stability. [9] To address the toxicity issue, the intuitive solution strategy is the substitution of Pb 2þ with divalent nontoxic metal ions (e.g., Sn 2þ and Ge 2þ ). [10][11][12] However, since Sn 2þ and Ge 2þ occupy high-energy 5s and 4s orbitals, they are easily oxidized in the air to form Sn 4þ and Ge 4þ . [13] Another strategy employs trivalent nontoxic metal ions (e.g., Bi 3þ and Sb 3þ ) to replace Pb 2þ , forming 0D or 2D layered perovskites with the formula Cs 3 M 2 X 9 (M = Bi 3þ , Sb 3þ ; X = I À , Br À , Cl À ). [14][15][16][17][18] Due to the isolated network of metal-halide octahedral units, these materials show undesirable optoelectronic properties, such as low carrier mobilities and indirect bandgaps. [17,18] Recently, a promising novel strategy has been proposed by replacing the B-site ions in the adjacent lattice of the traditional perovskite structure ABX 3 with a pair of heterovalent (i.e., monovalent and trivalent) nontoxic metal ions to form the double perovskite structure with the formula A

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Recent promise of lead-free halide perovskites in optoelectronic applications

Cited by 52 publications

References 205 publications

Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

All-inorganic perovskite solar cells featuring mixed group IVA cations

Design and Performance Exploration of a Lead‐Free All‐Inorganic Hydrogenated Cs₂AgBiBr₆‐Based Double Perovskite Solar Cell: A Numerical Modeling Study

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Recent promise of lead-free halide perovskites in optoelectronic applications

Cited by 52 publications

References 205 publications

Understanding the polaron behavior in Cs2CuSbCl6 halide double perovskite

Understanding the polaron behavior in Cs2CuSbCl6 halide double perovskite

All-inorganic perovskite solar cells featuring mixed group IVA cations

Design and Performance Exploration of a Lead‐Free All‐Inorganic Hydrogenated Cs2AgBiBr6‐Based Double Perovskite Solar Cell: A Numerical Modeling Study

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Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

Understanding the polaron behavior in Cs₂CuSbCl₆ halide double perovskite

Design and Performance Exploration of a Lead‐Free All‐Inorganic Hydrogenated Cs₂AgBiBr₆‐Based Double Perovskite Solar Cell: A Numerical Modeling Study