High-performance CsPbI3 perovskite solar cells without additives in air condition

Saparbaev, Aziz; Zhang, Meili; Kuvondikov, Vakhobjon; Nurumbetova, Lobar; Raji, Ibrahim Oladayo; Tajibaev, Ilkhom; Zakhidov, E. A.; Bao, Xichang; Yang, Renqiang

doi:10.1016/j.solener.2021.09.059

Cited by 15 publications

(17 citation statements)

References 51 publications

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“…An appropriate band alignment in M 2 CO 2 (X = Zr, Hf) required for water splitting is mainly attributed to the proper positioning of the valence band maximum formed from the contribution of C_p and O_p orbitals. , More recently, iodine-based semiconductors, due to their low electronegativity and high polarizability, have been shown to exhibit a narrower band gap compared to their bromide and chloride counterparts, as seen in perovskite materials like MAPbI 3 and CsPbI 3. − However, the inherent drawbacks of iodide–perovskite photocatalysts, such as the fast recombination of photogenerated carriers and low solar light absorption efficiency, limit their practical usage in solar-driven photocatalytic water-splitting applications.…”

Section: Introductionmentioning

confidence: 99%

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Kishore¹,

Tripathy²,

Sarkar³

2023

J. Phys. Chem. C

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Two-dimensional materials for efficient visible-light-driven photocatalytic water splitting after the era of TiO2 and other metal oxides are scarce. Recent years have witnessed an upsurge in the research of nonoxide semiconductors for overall photocatalytic water splitting. Herein, XTeI (X = Ga, In) monolayers are demonstrated to be stable water-splitting photocatalysts. Merely 0.1 (0.03) V of additional voltage is required to drive the oxidation evolution reaction by the GaTeI (InTeI) monolayer. As these monolayers exhibit a higher valence band position than traditional metal oxides, implying a narrower band gap, they are suitable as efficient visible-light-driven photocatalysts with an absorption coefficient of ∼10–5 cm–1 in the visible range of the solar spectrum. Anisotropic carrier mobilities favor charge separation and reduce their recombination. Exciton properties have been analyzed in-depth via GW approximation. Exciton spatial extension and exciton binding energy are found to exhibit a highly anisotropic nature. The exciton binding energies of GaTeI and InTeI on different substrates, like SiO2 and h-BN, range from ∼14 meV to ∼0.2 eV, which are even smaller than those in TMDs. These facilitate easier charge separation, making them favorable photocatalysts.

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Section: Introductionmentioning

confidence: 99%

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Kishore¹,

Tripathy²,

Sarkar³

2023

J. Phys. Chem. C

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“…MAAc solution also helps in transforming the yellow (orthorhombic) phase CsPbI 3 to the black (cubic) phase thereby lowering of the processing temperature. [175] Tang et al used a small amount of PbAc 2 in perovskite precursor to retard the crystal growth and obtain pinhole-free perovskite films with large grain sizes. [176] The hydrogen bonding between MA + and O in the PbAc 2 could stabilize the intermediate phase formed by DMF, MAI, and PbI 2 .…”

Section: Additives For Stabilizationmentioning

confidence: 99%

Low‐Temperature‐Processed Stable Perovskite Solar Cells and Modules: A Comprehensive Review

Reddy

Giacomo

Carlo

2022

Advanced Energy Materials

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their mixture while the halide anion X is usually equal to I − , Br − , Cl − , or a mixture of them, is rewarded as the most promising materials for the next generation photovoltaics. The record power conversion efficiencies (PCEs) have recently reached an unprecedented values of 25.7% on singlejunction small scale devices and 17.9% for areas over 800 cm 2 , [1] which are now close to that of the crystalline silicon solar cells. The origin of such high performances is attributed to the appealing photo-physical properties, including strong optical absorption, tunable bandgap, long carrier lifetimes, high carrier mobilities, and low mid-gap state densities. [2] Therefore, PSCs offer a promi sing prospect for future commercialization. Regardless of the several advantages, PSCs still need to solve several issues before scaling up at the industrial level.One of the major concerns in the PSC community is the operational stability of the devices. Unlike silicon solar cells, which are stable for over 25 years or more, [3] PSCs still lag behind, showing inferior stabilities. In particular, literature on low-temperature-processed devices demonstrated relatively lower stabilities when compared to the high-temperature ones. [4] However, through this review we show that the stability progress is on par with the high-temperature ones. Usually, the low operational stability of the devices is due to a number of factors, including oxygen, moisture, light, temperature, and electrical bias. To overcome the stability issue, identification of the origins of these instabilities is indispensable. However, various reports present results without providing all the parameters that are essential for understanding and comparing. Incomplete data reporting leads to great difficulty in understanding the multiple instabilities. Thanks to the consensus agreement among the PSC community, a robust stability testing protocol has now been employed. [5] Moreover, a template for reporting stability results has now been provided to ensure reliability and a better understanding of the instabilities. Various stability measurements help in identifying the type of instability existing in the devices. These stability measurements include dark storage studies (ISOS-D), light soaking tests (ISOS-L), outdoor stability studies (ISOS-O), thermal cycling in the dark (ISOS-T), light-humidity-thermal cycling (ISOS-LT), lightdark-cycling (ISOS-LC), intrinsic stability testing (ISOS-I), and electrical bias in the dark (ISOS-V). [5] The impending commercialization of perovskite solar cells (PSCs) is plodding despite the booming power conversion efficiencies and high stabilities. Most high-performance, stable PSCs are often processed partially with hightemperature processes, increasing the cost of production and energy payback time. Low-temperature-processed PSCs are crucial as they cut down the expenses lowering the barriers to industrial use. In addition, low-temperatureprocessed methods have a wide range of applicability in flexible devices and for tandem applicatio...

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“…[27] The CsPbI 3 perovskite has narrow band gap but needs high temperature for the preparation of α-phase. [28] It is required to prepare the low temperature processed stable perovskite material. Thus, researchers have employed CsPbIBr 2 perovskite phase as efficient light absorber which possesses relatively high stability and decent band gap of 2.1 eV.…”

Section: Introductionmentioning

confidence: 99%

“…The band gap of CsPbBr 3 perovskite is wide and can absorb light up to ∼540 nm [27] . The CsPbI 3 perovskite has narrow band gap but needs high temperature for the preparation of α‐phase [28] . It is required to prepare the low temperature processed stable perovskite material.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Investigation of All‐Inorganic CsPbIBr₂ Light‐Absorber‐Layer based Perovskite Solar Cells

Ahmad

Khan

et al. 2022

ChemistrySelect

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In last few years, rapid surge in the construction of perovskite or perovskite-like structures based photovoltaic cells have been noticed. Lead (Pb)-halide perovskite materials possess excellent optoelectronic features which make it most significant light absorber layer for the construction of CsPbIBr 2 based perovskite solar cells (PSCs). In particular, CsPbIBr 2 has unique optoelectronic properties and has been considered as a potential candidate for photovoltaic cells. In present work, we have used one-dimensional (1-D) solar cell capacitance simulator (SCAPS) to optimize the photovoltaic performance of CsPbIBr 2 based PSCs. The optimized simulated PSCs showed excellent efficiency of 14.11 %. Further, we have also fabricated PSCs which showed good efficiency of 10.18 %.

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High-performance CsPbI3 perovskite solar cells without additives in air condition

Cited by 15 publications

References 51 publications

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Low‐Temperature‐Processed Stable Perovskite Solar Cells and Modules: A Comprehensive Review

Theoretical and Experimental Investigation of All‐Inorganic CsPbIBr₂ Light‐Absorber‐Layer based Perovskite Solar Cells

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High-performance CsPbI3 perovskite solar cells without additives in air condition

Cited by 15 publications

References 51 publications

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Unconventional Anisotropy in Excitonic Properties and Carrier Mobility in Iodine-Based XTeI (X = Ga, In) Monolayers for Visible-Light Photocatalytic Water Splitting

Low‐Temperature‐Processed Stable Perovskite Solar Cells and Modules: A Comprehensive Review

Theoretical and Experimental Investigation of All‐Inorganic CsPbIBr2 Light‐Absorber‐Layer based Perovskite Solar Cells

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Theoretical and Experimental Investigation of All‐Inorganic CsPbIBr₂ Light‐Absorber‐Layer based Perovskite Solar Cells