Defect Regulation of Low‐Temperature‐Processed CsPbI2Br Solar Cells Based on Silane Additives DOI Open Access

Zhan Su,

Bo Yu,

Yuning Zhang

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

The development of inverted all‐inorganic perovskite solar cells (PSCs) is limited by the defect‐induced nonradiative recombination. Herein, a strategy to enhance efficiency and stability p‐i‐n type CsPbI 2 Br introducing (3‐glycidyloxypropyl)trimethoxysilane (GOPTS) into precursor solution reported. incorporation GOPTS significantly reduces voids grain boundaries in films fabricated at low temperatures (150 °C). alkoxy, epoxy, ether groups effectively passivate uncoordinated Pb, diminishing recombination centers associated with defects. Density functional theory simulations suggest that increases vacancy formation energies Cs I, leading reduced Furthermore, mitigates photoinduced phase segregation further enhances performance PSCs. This modification results an increase power conversion cells, from 11.83% 13.32%, when self‐assembled monolayers are used as hole transport layer. study underscores potential silane‐based additives defect passivation for perovskites, providing viable route advancement high‐efficiency cells.

Language: Английский

Powering the Future: Opportunities and Obstacles in Lead‐Halide Inorganic Perovskite Solar Cells DOI Creative Commons
Narendra Pai, Dechan Angmo

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

Citations

3
Influence of Donor Skeleton on Intramolecular Electron Transfer Amount for Efficient Perovskite Solar Cells DOI

Shengwei Geng,

Jialong Duan,

Naimin Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 16, 2024

Abstract The passivation of the defects derived from rapid‐crystallization with electron‐donating molecules is always a prerequisite to obtain desirable perovskite films for efficient and stable solar cells, thus, in‐depth understanding on correlations between molecular structure capacity great importance screening passivators. Here, we introduce double‐ended amide molecule into precursor solution modulate crystallization process passivate defects. By regulating intermediate bridging skeletons alkyl, alkenyl benzene groups, results show strength highly depends spin‐state electronic that serves as an intrinsic descriptor determine intramolecular charge distribution by controlling orbital electron transfer donor segment acceptor segment. Upon careful optimization, benzene‐bridged demonstrates superior efficacy improving film quality. As physical proof‐of‐concept, carbon‐based, all‐inorganic CsPbI 2 Br cell delivers significantly increased efficiency 15.51 % remarkably improved stability. Based same principle, champion 24.20 further obtained inverted (Cs 0.05 MA FA 0.9 )Pb(I 0.93 0.07 ) 3 cell. These findings provide new fundamental insights influence modulation effective cells.

Language: Английский

Citations

10
Ligand Assisted Hydrogen Bonding: A Game‐Changer in Lead Passivation and Stability in Perovskite Solar Cells DOI
Rida Ahmed, Sajid Ur Rehman, Zhiliang Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Lead halide perovskite solar cells (PSCs) have demonstrated power conversion efficiencies comparable to silicon-based cells, yet their instability under environmental stressors, such as humidity, heat, and light, remains a significant barrier commercialization. A primary cause of this is the uncoordinated lead ions (Pb

Language: Английский

Citations

7
Efficient Inverted CsPbI3 Solar Cells with Pb─S Contained Organosulfide‐Halide Perovskite Heterojunction DOI

Chunyan Lu,

Xuemin Guo, Wenxiao Zhang

et al.

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

Published: May 28, 2024

Abstract Here robust Pb‐S covalency is successfully incorporated into CsPbI 3 heterojunction by introducing a new zwitterionic organosulfide‐halide perovskite on top of . Cysteamine (CYS: + NH (CH 2 ) S − will react with PbCl and form 3D much shallower fermi level surface, constructing an efficient /[CYS][PbCl ] heterojunction. As result, interfacial energy loss can be significantly inhibited device open‐circuit voltage ( Voc increased to over 1.20 V champion efficiency 20.38% in inverted solar cells (PSCs). Besides, the intrinsic moisture phase stability [CYS][PbCl effectively stabilize beneath owing its covalency. PSCs exhibit improved stability, whether moist air or under continuous maximum power point (MPP) tracking.

Language: Английский

Citations

6
Effective n-type de-doping of perovskite surface via defect passivation and improved film crystallization for high-efficiency inorganic solar cells DOI
Hui Li, Jialong Duan,

Naimin Liu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(34), P. 23067 - 23075

Published: Jan. 1, 2024

An n/n − homojunction at the top perovskite/carbon interface is realized by doping natural additive for accelerating charge extraction and suppressing carrier nonradiative recombination in carbon-based CsPbI 2 perovskite solar cells.

Language: Английский

Citations

6
Surface Regulation via Carboxylate Polymer for Efficient and Stable CsPbI2Br Perovskite Solar Cells DOI Open Access
Weilin Zhang,

Chen Duan,

Mengzhen Du

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 7, 2024

Abstract CsPbI 2 Br perovskite solar cell (PSC) is a promising candidate for high‐efficiency single‐junction and tandem cells. However, due to the numerous surface defects of film mismatch energy levels at Br/charge transport layer interface, power conversion efficiency (PCE) PSC still significantly lower than theoretical limits. To alleviate those issues, in this work, carboxylate‐based p‐type polymer, TTC‐Cl, employed modify layer. TTC‐Cl can interact with uncoordinated Pb 2+ , thereby mitigating surficial reducing non‐radiative recombination losses. Furthermore, also improves band properties thin surface, rendering it more p‐type, which facilitates hole transport. Consequently, PSCs modification achieve remarkable PCE 17.81%, notably higher that counterpart without (15.87%). Moreover, exhibit better stability. This work highlights importance regulation via carboxylate polymer further enhancing performance PSCs.

Language: Английский

Citations

4
Improved free iodine capture by light-driven carbon-halogen bond cleavage in perovskite solar cells with dynamic self-healing ability DOI
Caixia Li, Wen‐Wu Liu,

Shiji Da

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159767 - 159767

Published: Jan. 1, 2025

Language: Английский

Citations

0
Blending of Sb2S3/PbS nanoparticles optimizes the CsPbI2Br perovskite/carbon electrode interface to facilitate efficient charge carrier transfer in perovskite solar cells DOI
Fengli Liu, Haozhen Deng, Yu Jing

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161029 - 161029

Published: Feb. 1, 2025

Language: Английский

Citations

0
Advancements and Strategies in CsPbI2Br Perovskite Solar Cells for Enhanced Efficiency and Stability DOI Creative Commons
F.W. Sun, Tingting Hou, Kang Xie

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(7), P. 483 - 483

Published: March 24, 2025

In recent years, inorganic perovskite solar cells (IPSCs), especially those based on CsPbI2Br, have attracted considerable attention owing to their exceptional thermal stability and a well-balanced combination of light absorption phase stability. This review provides an extensive overview the latest progress in CsPbI2Br PSCs, focusing film deposition techniques, crystallization control, interface engineering, charge transport layers (CTLs). High-efficiency PSCs can be achieved through optimization these key aspects. Various strategies, such as solvent component/additive optimization, been explored enhance quality films improve device performance. Despite significant progress, challenges remain, including need for even higher films, deeper understanding energetics, exploration novel CTLs. Additionally, long-term continues critical concern. Future research should focus refining preparation methods, developing sophisticated interfacial layers, exploring compatible materials, ensuring durability encapsulation moisture-resistant materials.

Language: Английский

Citations

0
Optimized Crystallization of CsPbI2Br Films through the Incorporation of H2O for High‐Efficiency All‐Inorganic Perovskite/Organic Tandem Solar Cell DOI

Kun Lang,

Jia Xu,

Huifang Han

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Among all‐inorganic perovskites, CsPbI 2 Br possesses excellent photovoltaic performance, intrinsic thermal stability and suitable bandgap superior phase‐stability, demonstrating large application potential for single‐junction perovskite solar cells (PSCs) perovskite/organic tandem (TSCs). However, a critical challenge persists in the effective control of crystallization process film, as inadequate can result substantial decrease photoelectric efficiency cells. Herein, simple approach utilizing small amount H O additive is introduced to optimize film. Specifically, introduction water facilitates formation numerous seed crystals within precursor solution, promoting subsequent Ostwald ripening Additionally, presence enhances desorption DMSO from Br, further improving overall crystallization. As result, Br‐basedPSC exhibits high power conversion (PCE) 16.7% an open‐circuit voltage ( V OC ) 1.36 V. By integrating these Br‐based front sub‐cells with narrow‐bandgap PM6:Y6‐based rear sub‐cells, PCE 23.21% 2.17 achieved, illustrating TSCs high‐efficiency Furthermore, unencapsulated display under ambient air conditions operation.

Language: Английский

Citations

0