Strategies for Improving Efficiency and Stability of Inverted Perovskite Solar Cells

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(37)

Published: March 1, 2024

Abstract Perovskite solar cells (PSCs) have attracted widespread research and commercialization attention because of their high power conversion efficiency (PCE) low fabrication cost. The long‐term stability PSCs should satisfy industrial requirements for photovoltaic devices. Inverted with a p‐i‐n architecture exhibit considerable advantages excellent competitive efficiency. continuously broken‐through PCE inverted shows huge application potential. This review summarizes the developments outlines characteristics including charge transport layers (CTLs), perovskite compositions, interfacial regulation strategies. latest effective CTLs, modification, promotion strategies especially under light, thermal, bias conditions are emphatically analyzed. Furthermore, applications structure in high‐efficiency stable tandem, flexible devices, modules main obstacles systematically introduced. Finally, remaining challenges faced by devices discussed, several directions advancing proposed according to development status industrialization requirements.

Language: Английский

---

Enhancing Stability and Efficiency of Inverted Inorganic Perovskite Solar Cells with In‐Situ Interfacial Cross‐Linked Modifier

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(23)

Published: Feb. 16, 2024

Inverted inorganic perovskite solar cells (PSCs) is potential as the top in tandem configurations, owing to ideal bandgap, good thermal and light stability of perovskites. However, challenges such mismatch energy levels between charge transport layer perovskite, significant non-radiative recombination caused by surface defects, poor water have led urgent need for further improvement performance inverted PSCs. Herein, fabrication efficient stable CsPbI

Language: Английский

---

All–Inorganic Perovskite Solar Cells: Defect Regulation and Emerging Applications in Extreme Environments

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 11, 2024

Abstract All–inorganic perovskite solar cells (PSCs), such as CsPbX 3 , have garnered considerable attention recently, they exhibit superior thermodynamic and optoelectronic stabilities compared to the organic–inorganic hybrid PSCs. However, power conversion efficiency (PCE) of PSCs is generally lower than that PSCs, contain higher defect densities at interface within light‐absorbing layers, resulting in non‐radiative recombination voltage loss. Consequently, regulation has been adopted an important strategy improve device performance stability. This review aims comprehensively summarize recent progresses on well their cutting‐edge applications extreme scenarios. The underlying fundamental mechanisms leading formation crystal structure are firstly discussed, overview literature‐adopted strategies context interface, internal, surface engineering provided. Cutting‐edge environments outer space underwater situations highlighted. Finally, a summary outlook presented future directions for achieving efficiencies stability

Language: Английский

---

Annual research review of perovskite solar cells in 2023

Materials Futures, Journal Year: 2024, Volume and Issue: 3(2), P. 022102 - 022102

Published: April 24, 2024

Abstract Perovskite (PVK) solar cells (PSCs) have garnered considerable research interest owing to their cost-effectiveness and high efficiency. A systematic annual review of the on PSCs is essential for gaining a comprehensive understanding current trends. Herein, analysis papers reporting key findings in 2023 was conducted. Based results, were categorized into six classifications, including regular n–i–p PSCs, inverted p–i–n PVK-based tandem cells, PVK modules, device stability, lead toxicity green solvents. Subsequently, detailed overview summary advancements within each classification presented. Overall, this serves as valuable resource guiding future endeavors field PSCs.

Language: Английский

---

Powering the Future: Opportunities and Obstacles in Lead‐Halide Inorganic Perovskite Solar Cells

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Efficiency, stability, and cost are crucial considerations in the development of photovoltaic technology for commercialization. Perovskite solar cells (PSCs) a promising third‐generation due to their high efficiency low‐cost potential. However, stability organohalide perovskites remains significant challenge. Inorganic perovskites, based on CsPbX ₃ (X = Br − /I ), have garnered attention excellent thermal optoelectronic properties comparable those perovskites. Nevertheless, inorganic faces several hurdles, including need high‐temperature annealing achieve photoactive α‐phase susceptibility transitioning into nonphotoactive δ‐phase under environmental stressors, particularly moisture. These challenges impede creation high‐efficiency, high‐stability devices using low‐cost, scalable manufacturing processes. This review provides comprehensive background fundamental structural, physical, lead‐halide It discusses latest advancements fabricating PSCs at lower temperatures ambient conditions. Furthermore, it highlights progress state‐of‐the‐art devices, manufactured environments reduced temperatures, alongside simultaneous upscaling PSCs.

Language: Английский

---

Self‐Induced Bi‐interfacial Modification via Fluoropyridinic Acid For High‐Performance Inverted Perovskite Solar Cells

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 31, 2024

Abstract The uncontrolled crystallization of perovskite generates a significant number internal and interfacial defects, posing major challenge to the performance solar cells (PSCs). In this paper, novel bi‐interfacial modification strategy utilizing 5‐fluoropyridinic acid (FPA) is proposed modulate crystal growth provide defect passivation. It demonstrated that FPA self‐deposited at both top bottom interfaces films during thermal annealing. CO N functional groups in serve as chelating agents, binding closely uncoordinated Pb 2+ /Pb clusters, thereby passivating defects reducing charge recombination interfaces. strong chemical interactions between further stabilize Pb‐I framework, promoting formation high‐quality films, confirmed by situ photoluminescence measurements. Consequently, modified inverted PSCs achieved an exceptional power conversion efficiency (PCE) 25.37%. Moreover, devices retained over 93.17% initial after 3000 h continuous illumination under one‐sun equivalent conditions nitrogen atmosphere. This paper presents promising pathway for enhancing stability through self‐induced approach.

Language: Английский

---

Supramolecular Aza Crown Ether Modulator for Efficient and Stable Perovskite Solar Cells

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(17)

Published: Jan. 6, 2024

Abstract Molecular modulators have been demonstrated to be an effectual strategy for reducing the defect at interface and in bulk of perovskite ameliorating performance stability solar cells (PSCs). Herein, 1‐aza‐15‐crown 5‐ether (A15C5), with a unique nitrogen heterocyclic structure as molecular modulator is introduced between layer hole transport PSCs. Multiple supramolecular synergistic interaction A15C5 dramatically suppress passivate defects, resulting 38% decrease electron trap‐state density perovskite. The formation two‐dimensional/th3D heterojunctions induced by planar releases residual strain film, optimizes match energy level array boosts devices. Consequently, A15C5‐modulated PSC achieves impressing efficiency 24.13% along excellent humidity, light thermal stability. This work provides typical utilize crown ether

Language: Английский

---

Small Molecule Regulatory Strategy for Inorganic Perovskite Solar Cells with 368 mV of V_OC Deficit and its Application in Tandem Devices

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(26)

Published: April 25, 2024

Abstract Tandem solar cells combining perovskite and silicon have witnessed rapid development in recent years. However, the top cell, utilizing wide‐bandgap as absorbers generally suffer significant open‐circuit voltage ( V OC ) deficit, particularly for inorganic perovskite, which poses a considerable obstacle to enhancing power conversion efficiency (PCE). Here, modulation strategy by using 2,6‐pyridinedicarboxamide (PC), crystallization kinetics of film can be effectively regulated, specifically manifested relatively longer annealing time air, resulting sufficient growth grains. Additionally, PC situ passivate uncoordinated Pb 2+ , suppressing non‐radiative recombination charge carriers. Eventually, record PCE 22.07% is achieved based on n–i–p (IPSCs), also demonstrate highest above 1.34 (1.71 eV bandgap). More importantly, unencapsulated IPSCs show enhanced thermal stability photostability. Furthermore, are applied perovskite/silicon tandem (IPTSCs), 27.27% an impressive 2.024 obtained.

Language: Английский

---

Eliminating Hole Extraction Barrier in 1D/3D Perovskite Heterojunction for Efficient and Stable Carbon‐Based CsPbI₃ Solar Cells with a Record Efficiency

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 17, 2024

Carbon-based perovskite solar cells (C-PSCs) have the advantages of low-cost and high-stability, but their photovoltaic performance is limited by severe defect-induced recombination low hole extraction efficiency. 1D proven to effectively passivate defects on surface, therefore reducing non-radiative loss. However, unsuitable energy level most renders an undesired downward band bending for 3D perovskite, resulting in a high barrier reduced Therefore, rational design selection perovskites as modifiers are essential balancing defect passivation extraction. In this work, based simulation calculations, thiocholine iodide (TchI) selected prepare with work function then constructs TchPbI

Language: Английский

---

Nanoscale Local Contacts Enable Inverted Inorganic Perovskite Solar Cells with 20.8 % Efficiency

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(19)

Published: Feb. 24, 2024

Abstract Inorganic perovskite solar cells (IPSCs) have gained significant attention due to their excellent thermal stability and suitable band gap (~1.7 eV) for tandem cell applications. However, the defect‐induced non‐radiative recombination losses, low charge extraction efficiency, energy level mismatches, so on render fabrication of high‐efficiency inverted IPSCs remains challenging. Here, use 3‐amino‐5‐bromopyridine‐2‐formamide (ABF) in methanol was dynamically spin‐coated surface CsPbI 2.85 Br 0.15 film, which facilitates limited etching defect‐rich subsurface layer, resulting formation vertical PbI 2 nanosheet structures. This enabled localized contacts between film electron transport suppress electron‐hole beneficial extraction. Additionally, C=O C=N groups ABF effectively passivated undercoordinated Pb 2+ at grain boundaries film. Eventually, we achieved a champion efficiency 20.80 % (certified 20.02 %) with enhanced stability, is highest value ever reported date. Furthermore, successfully prepared p‐i‐n type monolithic inorganic perovskite/silicon (IPSTSCs) an 26.26 %. strategy provided both fast efficient passivation electron‐selective interface.

Language: Английский

---