Rational strategies toward efficient and stable lead-free tin halide perovskite solar cells

He, Dongxu; Shen, Liang; Bai, Yang; Wang, Luyao

doi:10.1039/d0qm01002b

Cited by 12 publications

(12 citation statements)

References 134 publications

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“…While Sn 2+ oxidation to Sn 4+ contributes to increased conductivity, 198 it eventually results in the degradation of the perovskite under long-term ambient exposure. Various strategies exist for improving the stability of tin-based perovskites, 204 but the fundamental problem that the tin oxidation from Sn 2+ to Sn 4+ ultimately results in increased conductivity and inferior stability would be very difficult to solve.…”

Section: Discussionmentioning

confidence: 99%

Metal Halide Perovskites as Emerging Thermoelectric Materials

Ren

Djurišić

et al. 2021

ACS Energy Lett.

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In addition to the broadly anticipated use of metal halide perovskites in photovoltaics and light-emitting devices, they also hold a great promise as cost-effective thermoelectrics, as they may offer an ultra-low thermal conductivity combined with a high Seebeck coefficient. This Review summarizes the recent advances in theoretical analysis and experimental studies of the thermoelectric properties of these materials, with a particular focus on organic–inorganic (hybrid) halide perovskites and low-dimensional analogues. After a short introduction of figures of merits of thermoelectric materials, we consider measurement methods used to characterize thermoelectric materials and outline some difficulties in applying those methods to perovskites, since accurate measurements are essential for further progress of this emerging research area. We then outline in detail the current progress achieved in metal halide perovskite thermoelectrics and offer a detailed discussion of possible strategies to resolve the discrepancy between their high theoretically predicted ZT values (1–2 at room temperature) and still rather low (below 0.2) experimental values.

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Section: Discussionmentioning

confidence: 99%

Metal Halide Perovskites as Emerging Thermoelectric Materials

Ren

Djurišić

et al. 2021

ACS Energy Lett.

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“…[17] Generally, solar cells with mesoporous-TiO 2 (m-TiO 2 ) suffer less hysteresis when compared to without mesoporous structures because here capacitive charges are easily dissipated by charge separation. [97][98][99] To explain the magnitude of capacitance via charge accumulation is complex and it is still a part of research. process, charge trapping/detrapping takes place, which shows hysteresis in J-V characteristics of PSCs.…”

Section: Capacitive Effectsmentioning

confidence: 99%

“…Along with this, traps of metal oxides also get suppressed. [89,97] Chlorine doping effectively inactivates the contacts between the metal oxide and the perovskite layer and enhances the binding energy between these two. [163] Using Ni-Fe 2 O 3 as the ETL in heterojunction PSCs, hysteresis gets suppressed because the incorporation of nickel enhances the conductivity and promotes better electron extraction.…”

Section: Dopingmentioning

confidence: 99%

Assessment of Lead‐Free Tin Halide Perovskite Solar Cells Using J–V Hysteresis

Dixit

Boro

Ghosh

et al. 2022

Physica Status Solidi (a)

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Perovskite solar cells (PSCs) are considered as one of the most promising alternatives for existing solar cells due to its excellent optoelectronic properties and high efficiency. However, lead has posed a serious issue due to its toxicity which may hinder the commercial use of lead‐based perovskite solar panels/arrays. There has been substantial work progress to find an environment‐friendly alternative metal ion to replace lead. Tin (Sn)‐based PSCs have been successfully synthesized and optimized with high efficiency, making it the most promising active material for lead‐free PSCs. In this review, the role of J–V hysteresis in tin halide PSCs is discussed from the perspective of system structure, working concepts, and interfacial carrier dynamics in detail. The problem of hysteresis in PSCs is closely linked to ion migration, ferroelectric effects, capacitive effects, and trap‐assisted recombination processes, which are highlighted in this review. Further, remediation to reduce the hysteresis by various strategies is explained for tin‐based perovskites. The core focus of this review is to analyze the deterioration of device performance and stability caused due to the generation of defects in the perovskite films, leading to a time‐dependent hysteresis of the current–voltage curves.

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“…[32] Solar cells are another important field for perovskite materials' applications that take advantage of photoelectric conversion, attracting significant attention from researchers in recent years as the PCE increased from 3.8% in 2009 to 25.5% in 2018. [144][145][146][147][148][149][150][151] Perovskite solar cells operate under a principle similar to that of photodetectors. The perovskite materials absorb incident photons and generate electron-hole pairs upon photoexcitation.…”

Section: Photoelectric Conversionmentioning

confidence: 99%

Emerging Intelligent Manufacturing of Metal Halide Perovskites

Zhang

Chen

et al. 2022

Adv Materials Technologies

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The incorporation of high‐precision intelligent manufacturing technologies into patterned metal halide perovskite production has attracted scientific and commercial interest because of advantages in terms of designable and controllable processes, multiscale and multimaterial construction strategies, and improved energy‐conversion performance. Here, the current developments in intelligent manufacturing technologies are reviewed for patterned and tailored perovskite structures. Six high‐precision approaches, namely, nanoimprint lithography, space‐confined growth, ink‐based direct printing, laser‐induced nucleation, modification using a laser, and high‐energy etching, are investigated and summarized. The focus of the review is on the basic principles of intelligent manufacturing methods, process optimization, and controllable perovskite microstructures. Additionally, the performance improvements of patterned and tailored perovskites and their devices, including photodetectors, solar cells, lasers, information storage and encryption devices, anticounterfeiting devices, and full‐color display applications, are discussed. The potential future applications of shaped perovskites fabricated via intelligent manufacturing technologies are promising.

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Rational strategies toward efficient and stable lead-free tin halide perovskite solar cells

Abstract: Despite the incredible progress of lead halide perovskite solar cells (LHPSCs), concerns remain regarding the potential impacts to the environment and human heath arising from the toxic and dissolvable lead...

Cited by 12 publications

References 134 publications

Metal Halide Perovskites as Emerging Thermoelectric Materials

Metal Halide Perovskites as Emerging Thermoelectric Materials

Assessment of Lead‐Free Tin Halide Perovskite Solar Cells Using J–V Hysteresis

Emerging Intelligent Manufacturing of Metal Halide Perovskites

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