A-site tailoring in the vacancy-ordered double perovskite semiconductor Cs2SnI6 for photovoltaic application

Umedov, Shodruz T.; Khadka, Dhruba B.; Yanagida, Masatoshi; Grigorieva, Anastasia V.; Shirai, Yasuhiro

doi:10.1016/j.solmat.2021.111180

Cited by 33 publications

(27 citation statements)

References 47 publications

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“…[ 66 ] Regardless of the theoretical prediction, a comprehensive experimental interface study between CuSCN and Ti‐based vacancy‐ordered‐DHPs needs to be executed in accessing the material potential ability. Cu 2 O is a p‐type semiconductor with very high hole mobility (256 cm 2 Vs −1 ) [ 27 ] and a low electron affinity (3.2 eV) value. [ 67 ] Using Cu 2 O as HTL increases the photovoltaic performances due to the high mobility, low energy loss, and low recombination loss properties.…”

Section: Performance Of Ti‐based Vacancy‐ordered‐dhps Solar Cell (Com...mentioning

confidence: 99%

“…Table 6 outlines the high performance profile of MoO 3 and ZnO due to the lowest negative valence band offset (VBO), accentuating optimal band alignment with Cs 2 TiBr 6 (Figure 9). MoO 3 is an ideal HTL [27,61,74] . material in solar cell applications due to possessing ambient stability, high conductivity, high hole mobility, and excellent hole extractor properties.…”

Section: Selection Of Etl and Htl Materials For Ti-based Vacancy-orde...mentioning

confidence: 99%

“…However, the performance of this Sn‐based vacancy‐ordered‐DHPs solar cells ( Table 1 ) are still low due to moderate electron mobility ( μ e ≈ 3 cm 2 V −1 s −1 ), [ 25 ] high resistivity (≈MΩ), [ 21 ] and high defect density value at the interface (≈1022 cm −3 ) and in bulk (>1019 cm −3 ). [ 26,27 ]…”

Section: Introductionmentioning

confidence: 99%

“…However, the performance of this Sn-based vacancy-ordered-DHPs solar cells (Table 1) are still low due to moderate electron mobility (μ e % 3 cm 2 V À1 s À1 ), [25] high resistivity (%MΩ), [21] and high defect density value at the interface (%1022 cm À3 ) and in bulk (>1019 cm À3 ). [26,27] Titanium (Ti) having a þ 4 oxidation state might be a suitable Sn 4þ alternative in Cs 2 SnX 6 . Ti-based vacancy-ordered-DHPs could also be a possible candidate for an efficient light absorber in replacing lead-based perovskite.…”

Section: Introductionmentioning

confidence: 99%

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Titanium‐Based Vacancy‐Ordered Double Halide Family in Perovskite Solar Cells

Aslam

Farooqi

Rahman

et al. 2022

Physica Status Solidi (a)

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The toxicity and stability risk of perovskite structured materials have raised concerns in respective to utilization as a solar energy conversion material. The most common perovskite structured material is lead (Pb)-based, which is an element that is knowingly toxic to humans and the environment. Although the stability issue has been well allayed with several optimizations, the ruinous Pb remains a future challenge for perovskite solar cells. Compositional and structural derivatives of the perovskite family, specifically vacancy-ordered double halide perovskites (DHPs), have attracted the attention of researchers in terms of efficiency and toxicity issues subjugation. Although tin (Sn)-based vacancyordered DHPs have been widely explored, the intrinsic property conduces low performance output. Titanium (Ti) is a potential substituting candidate of Sn in a vacancy-ordered DHPs structure. It is an environment-friendly element ideal for sustainable perovskite structured compositions. Rudimentary studies of Ti-based vacancy-ordered DHPs emphasized its potential development as an eco-friendly and stable solar cell. In promoting the development of Ti-based vacancy-ordered DHPs as potential absorbers, we summarized herein the recent progress of experimental and theoretical studies of this perovskite material.

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Section: Performance Of Ti‐based Vacancy‐ordered‐dhps Solar Cell (Com...mentioning

confidence: 99%

Section: Selection Of Etl and Htl Materials For Ti-based Vacancy-orde...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Titanium‐Based Vacancy‐Ordered Double Halide Family in Perovskite Solar Cells

Aslam

Farooqi

Rahman

et al. 2022

Physica Status Solidi (a)

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“…Therefore, only Cs was selected as the A site to make A 2 BB′X 6 still have black phase structures. 45…”

Section: Resultsmentioning

confidence: 99%

High throughput screening of promising lead-free inorganic halide double perovskites via first-principles calculations

Ding

Gao

Mao

et al. 2022

Phys. Chem. Chem. Phys.

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Wide‐Bandgap Perovskite‐Inspired Materials: Defect‐Driven Challenges for High‐Performance Optoelectronics

Grandhi,

Hardy,

Krishnaiah

et al. 2023

Adv Funct Materials

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The remarkable success of lead halide perovskites (LHPs) in photovoltaics and other optoelectronics is significantly linked to their defect tolerance, although this correlation remains not fully clear. The tendency of LHPs to decompose into toxic lead‐containing compounds in the presence of humid air calls for the need of low‐toxicity LHP alternatives comprising of cations with stable oxidation states. To this aim, a plethora of low‐dimensional and wide‐bandgap perovskite‐inspired materials (PIMs) are proposed. Unfortunately, the optoelectronic performance of PIMs currently lags behind that of their LHP‐based counterparts, with a key limiting factor being the high concentration of defects in PIMs, whose rich and complex chemistry is still inadequately understood. This review discusses the defect chemistry of relevant PIMs belonging to the halide elpasolite, vacancy‐ordered double perovskite, pnictogen‐based metal halide, Ag‐Bi‐I, and metal chalcohalide families of materials. The defect‐driven optical and charge‐carrier transport properties of PIMs and their device performance within and beyond photovoltaics are especially discussed. Finally, a view on potential solutions for advancing the research on wide‐bandgap PIMs is provided. The key insights of this review will help to tackle the commercialization challenges of these emerging semiconductors with low toxicity and intrinsic air stability.

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A-site tailoring in the vacancy-ordered double perovskite semiconductor Cs2SnI6 for photovoltaic application

Cited by 33 publications

References 47 publications

Titanium‐Based Vacancy‐Ordered Double Halide Family in Perovskite Solar Cells

Titanium‐Based Vacancy‐Ordered Double Halide Family in Perovskite Solar Cells

High throughput screening of promising lead-free inorganic halide double perovskites via first-principles calculations

Wide‐Bandgap Perovskite‐Inspired Materials: Defect‐Driven Challenges for High‐Performance Optoelectronics

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