Surface reaction for efficient and stable inverted perovskite solar cells

Nature, Год журнала: 2022, Номер 611(7935), С. 278 - 283

Опубликована: Сен. 1, 2022

Язык: Английский

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Minimizing buried interfacial defects for efficient inverted perovskite solar cells

Science, Год журнала: 2023, Номер 380(6643), С. 404 - 409

Опубликована: Апрель 27, 2023

Controlling the perovskite morphology and defects at buried perovskite-substrate interface is challenging for inverted solar cells. In this work, we report an amphiphilic molecular hole transporter, (2-(4-(bis(4-methoxyphenyl)amino)phenyl)-1-cyanovinyl)phosphonic acid, that features a multifunctional cyanovinyl phosphonic acid group forms superwetting underlayer deposition, which enables high-quality films with minimized interface. The resulting film has photoluminescence quantum yield of 17% Shockley-Read-Hall lifetime nearly 7 microseconds achieved certified power conversion efficiency (PCE) 25.4% open-circuit voltage 1.21 volts fill factor 84.7%. addition, 1-square centimeter cells 10-square minimodules show PCEs 23.4 22.0%, respectively. Encapsulated modules exhibited high stability under both operational damp heat test conditions.

Язык: Английский

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Improved charge extraction in inverted perovskite solar cells with dual-site-binding ligands

Science, Год журнала: 2024, Номер 384(6692), С. 189 - 193

Опубликована: Апрель 11, 2024

Inverted (pin) perovskite solar cells (PSCs) afford improved operating stability in comparison to their nip counterparts but have lagged power conversion efficiency (PCE). The energetic losses responsible for this PCE deficit pin PSCs occur primarily at the interfaces between and charge-transport layers. Additive surface treatments that use passivating ligands usually bind a single active binding site: This dense packing of electrically resistive passivants perpendicular may limit fill factor PSCs. We identified two neighboring lead(II) ion (Pb

Язык: Английский

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Homogenizing out-of-plane cation composition in perovskite solar cells

Nature, Год журнала: 2023, Номер 624(7992), С. 557 - 563

Опубликована: Ноя. 1, 2023

Perovskite solar cells with the formula FA1-xCsxPbI3, where FA is formamidinium, provide an attractive option for integrating high efficiency, durable stability and compatibility scaled-up fabrication. Despite incorporation of Cs cations, which could potentially enable a perfect perovskite lattice1,2, compositional inhomogeneity caused by A-site cation segregation likely to be detrimental photovoltaic performance cells3,4. Here we visualized out-of-plane along vertical direction across films identified underlying reasons its potential impact devices. We devised strategy using 1-(phenylsulfonyl)pyrrole homogenize distribution composition in films. The resultant p-i-n devices yielded certified steady-state photon-to-electron conversion efficiency 25.2% stability.

Язык: Английский

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Inverted perovskite solar cells using dimethylacridine-based dopants

Nature, Год журнала: 2023, Номер 620(7974), С. 545 - 551

Опубликована: Май 24, 2023

Язык: Английский

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Rational design of Lewis base molecules for stable and efficient inverted perovskite solar cells

Science, Год журнала: 2023, Номер 379(6633), С. 690 - 694

Опубликована: Фев. 16, 2023

Lewis base molecules that bind undercoordinated lead atoms at interfaces and grain boundaries (GBs) are known to enhance the durability of metal halide perovskite solar cells (PSCs). Using density functional theory calculations, we found phosphine-containing have strongest binding energy among members a library studied herein. Experimentally, best inverted PSC treated with 1,3-bis(diphenylphosphino)propane (DPPP), diphosphine passivates, binds, bridges GBs, retained power conversion efficiency (PCE) slightly higher than its initial PCE ~23% after continuous operation under simulated AM1.5 illumination maximum point ~40°C for >3500 hours. DPPP-treated devices showed similar increase in being kept open-circuit conditions 85°C >1500

Язык: Английский

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Highly efficient and stable perovskite solar cells via a multifunctional hole transporting material

Joule, Год журнала: 2024, Номер 8(6), С. 1691 - 1706

Опубликована: Март 15, 2024

Язык: Английский

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Bimolecularly passivated interface enables efficient and stable inverted perovskite solar cells

Science, Год журнала: 2023, Номер 382(6672), С. 810 - 815

Опубликована: Ноя. 16, 2023

Compared with the n-i-p structure, inverted (p-i-n) perovskite solar cells (PSCs) promise increased operating stability, but these photovoltaic often exhibit lower power conversion efficiencies (PCEs) because of nonradiative recombination losses, particularly at perovskite/C60 interface. We passivated surface defects and enabled reflection minority carriers from interface into bulk using two types functional molecules. used sulfur-modified methylthio molecules to passivate suppress through strong coordination hydrogen bonding, along diammonium repel reduce contact-induced achieved field-effect passivation. This approach led a fivefold longer carrier lifetime one-third photoluminescence quantum yield loss certified quasi-steady-state PCE 25.1% for PSCs stable operation 65°C >2000 hours in ambient air. also fabricated monolithic all-perovskite tandem 28.1% PCE.

Язык: Английский

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Long-term operating stability in perovskite photovoltaics

Nature Reviews Materials, Год журнала: 2023, Номер 8(9), С. 569 - 586

Опубликована: Авг. 4, 2023

Язык: Английский

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Next-generation applications for integrated perovskite solar cells

Communications Materials, Год журнала: 2023, Номер 4(1)

Опубликована: Янв. 5, 2023

Abstract Organic/inorganic metal halide perovskites attract substantial attention as key materials for next-generation photovoltaic technologies due to their potential low cost, high performance, and solution processability. The unique properties of the rapid advances that have been made in solar cell performance facilitated integration into a broad range practical applications, including tandem cells, building-integrated photovoltaics, space with batteries supercapacitors energy storage systems, photovoltaic-driven catalysis. In this Review, we outline notable achievements these photovoltaic-integrated technologies. Outstanding challenges future perspectives development fields applications are discussed.

Язык: Английский

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