High-Efficiency Perovskite Solar Cells

Chemical Reviews, Journal Year: 2020, Volume and Issue: 120(15), P. 7867 - 7918

Published: July 28, 2020

With rapid progress in a power conversion efficiency (PCE) to reach 25%, metal halide perovskite-based solar cells became game-changer photovoltaic performance race. Triggered by the development of solid-state perovskite cell 2012, intense follow-up research works on structure design, materials chemistry, process engineering, and device physics have contributed revolutionary evolution be strong candidate for next-generation energy harvester. The high combination with low cost processes are selling points this over commercial silicon or other organic inorganic cells. characteristic features may enable further advancement PCE beyond those afforded cells, toward Shockley-Queisser limit. This review summarizes fundamentals behind optoelectronic properties materials, as well important approaches fabricating high-efficiency Furthermore, possible strategies enhancing limit discussed.

Language: Английский

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Imperfections and their passivation in halide perovskite solar cells

Chemical Society Reviews, Journal Year: 2019, Volume and Issue: 48(14), P. 3842 - 3867

Published: Jan. 1, 2019

Perovskite solar cells to date are made of polycrystalline films which contain a high density defects. Imperfection passivation reduce non-radiative recombination and suppress ion migration could improve device efficiency stability.

Language: Английский

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Towards stable and commercially available perovskite solar cells

Nature Energy, Journal Year: 2016, Volume and Issue: 1(11)

Published: Oct. 17, 2016

Language: Английский

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Self-formed grain boundary healing layer for highly efficient CH3NH3PbI3 perovskite solar cells

Nature Energy, Journal Year: 2016, Volume and Issue: 1(7)

Published: June 20, 2016

Language: Английский

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Additive Engineering for Efficient and Stable Perovskite Solar Cells

Advanced Energy Materials, Journal Year: 2019, Volume and Issue: 10(13)

Published: Oct. 4, 2019

Abstract Perovskite solar cells (PSCs) have reached a certified 25.2% efficiency in 2019 due to their high absorption coefficient, carrier mobility, long diffusion length, and tunable direct bandgap. However, the nature of solution processing rapid crystal growth perovskite thin films, variety defects can form as result precursor compositions conditions. The use additives affect crystallization film formation, defect passivation bulk and/or at surface, well influence interface tuning structure energetics. Here, recent progress additive engineering during formation is discussed according following common categories: Lewis acid (e.g., metal cations, fullerene derivatives), base based on donor type O‐donor, S‐donor, N‐donor), ammonium salts, low‐dimensional perovskites, ionic liquid. Various additive‐assisted strategies for optimization are then summarized; include modifiers improve electron‐ hole‐transport layers those modify surface properties. Finally, an outlook provided research trends with respect PSC development.

Language: Английский

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Quantum and Dielectric Confinement Effects in Lower-Dimensional Hybrid Perovskite Semiconductors

Chemical Reviews, Journal Year: 2019, Volume and Issue: 119(5), P. 3140 - 3192

Published: Jan. 14, 2019

Hybrid halide perovskites are now superstar materials leading the field of low-cost thin film photovoltaics technologies. Following surge for more efficient and stable 3D bulk alloys, multilayered colloidal perovskite nanostructures appeared in 2016 as viable alternative solutions to this challenge, largely exceeding original proof concept made 2009 2014, respectively. This triggered renewed interest lower-dimensional hybrid at same time increasingly numerous differentiated applications. The present paper is a review past literature on both compounds, emphasizing that availability accurate structural information dramatic importance reach fair understanding quantum dielectric confinement effects. Layered occupy special place history perovskites, with large number seminal papers 1980s 1990s. In recent years, rationalization structure-properties relationship has greatly benefited from new theoretical approaches dedicated their electronic structures optoelectronic properties, well growing contributions based modern experimental techniques. necessary step provide in-depth tools decipher extensive chemical engineering possibilities which surpass ones counterparts. Comparisons classical semiconductor 2D van der Waals heterostructures also stressed. Since 2015, have undergone quick development applications light emission. Although intensively studied last two years by various spectroscopy techniques, description effects properties still its infancy.

Language: Английский

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Defect and Contact Passivation for Perovskite Solar Cells

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(25)

Published: May 7, 2019

Abstract Metal‐halide perovskites are rapidly emerging as an important class of photovoltaic absorbers that may enable high‐performance solar cells at affordable cost. Thanks to the appealing optoelectronic properties these materials, tremendous progress has been reported in last few years terms power conversion efficiencies (PCE) perovskite (PSCs), now with record values excess 24%. Nevertheless, crystalline lattice often includes defects, such interstitials, vacancies, and impurities; grain boundaries surfaces, dangling bonds can also be present, which all contribute nonradiative recombination photo‐carriers. On device level, undesirably inflates open‐circuit voltage deficit, acting thus a significant roadblock toward theoretical efficiency limit 30%. Herein, focus is on origin various voltage‐limiting mechanisms PSCs, possible mitigation strategies discussed. Contact passivation schemes effect methods reduction hysteresis described. Furthermore, several demonstrate how passivating contacts increase stability PSCs elucidated. Finally, remaining key challenges contact design prioritized outlook will further market readiness high‐efficiency presented.

Language: Английский

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Photovoltaic mixed-cation lead mixed-halide perovskites: links between crystallinity, photo-stability and electronic properties

Energy & Environmental Science, Journal Year: 2016, Volume and Issue: 10(1), P. 361 - 369

Published: Dec. 15, 2016

We establish compositional effects on stability, crystallinity, charge-carrier life times and mobilities in mixed-cation lead iodide-bromide perovskites as band gap tunable materials for multi-junction photovoltaic cells.

Language: Английский

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Perovskite Solar Cells on the Way to Their Radiative Efficiency Limit – Insights Into a Success Story of High Open‐Circuit Voltage and Low Recombination

Advanced Energy Materials, Journal Year: 2017, Volume and Issue: 7(14)

Published: March 3, 2017

Inorganic‐organic lead‐halide perovskite solar cells have reached efficiencies above 22% within a few years of research. Achieved photovoltages >1.2 V are outstanding for material with bandgap 1.6 eV – in particular considering that it is solution processed. Such values demand low non‐radiative recombination rates and come along high luminescence yields when the cell operated as light emitting diode. This progress report summarizes developments on composition device architecture, which allowed such photovoltages. It critically assesses term “lifetime”, theories experiments behind it, different mechanisms present. attempts to condense reported explanations extraordinary optoelectronic properties material. Amongst those an defect tolerance due antibonding valence states capability tuning, might make dream low‐cost highly efficient solution‐processed thin film true. Beyond that, presence photon recycling will open new opportunities photonic design.

Language: Английский

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Towards commercialization: the operational stability of perovskite solar cells

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(22), P. 8235 - 8286

Published: Jan. 1, 2020

Recently, perovskite solar cells (PSCs) have attracted much attention owing to their high power conversion efficiency (25.2%) and low fabrication cost. However, the short lifetime under operation is major obstacle for commercialization. With efforts from entire PSC research community, significant advances been witnessed improve device operational stability, a timely summary on progress urgently needed. In this review, we first clarify definition of stability its significance in context practical use. By analyzing mechanisms established approaches improvement, summarize several effective strategies extend layer-by-layer sequence across PSC. These are discussed contexts chemical reactions, photo-physical management, technological modification, etc., which may inspire future R&D stable PSCs. Finally, emerging standards with respect testing reporting summarized discussed, help reliable data circulate community. The main target review gaining insight into PSCs, as well providing useful guidance further by rational materials processing fabrication, would finally promote commercialization cells.

Language: Английский

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