Manipulating the Crystallization and Phase Transition for High‐Performance CsPbI2Br Solar Cells DOI

Shiqi Shan,

Chang Xu, Haotian Wu

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 13(6)

Published: Dec. 23, 2022

Abstract The inorganic perovskite solar cells (IPSC) are promising in the context of simultaneously delivering high efficiency and good stability. Developing a high‐performance larger band gap IPSC is particularly demand for commercialization due to their suitability match with prevailing silicon tandem devices, while this hindered by poor morphology phase stability films. To address issue, work develops combined method nonstoichiometric composition post‐cation exchange improve CsPbI 2 Br IPSCs, achieves record 17.80%. This finds that excessive PbI regulates film crystallization, thus, high‐quality enlarged grains obtained. Further depositing formamidinium iodide on top induces cation during post‐annealing process, which increases significantly improves device Therefore, provides an avenue toward via ion method.

Language: Английский

A low-cost hole transport layer enables CsPbI2Br single-junction and tandem perovskite solar cells with record efficiencies of 17.8 % and 21.4 % DOI
Yuanjia Ding, Qiang Guo, Yanfang Geng

et al.

Nano Today, Journal Year: 2022, Volume and Issue: 46, P. 101586 - 101586

Published: Aug. 17, 2022

Language: Английский

Citations

103
Polishing the Lead‐Poor Surface for Efficient Inverted CsPbI3 Perovskite Solar Cells DOI
Sheng Fu, Jiabo Le,

Xueming Guo

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(38)

Published: Aug. 2, 2022

Triiodide cesium lead perovskite (CsPbI3 ) has promising prospects in the development of efficient and stable photovoltaics both single-junction tandem structures. However, achieving inverted devices that provide good stability are compatible to remains a challenge, deep insights still not understood. This study finds surface components CsPbI3 intrinsically lead-poor relevant traps p-type with localized states. These deep-energy-level p induce inferior transfer or electrons serious nonradiative recombination at /PCBM interface, leading considerable open-circuit voltage (Voc loss reduction fill factor (FF). Compared molecular passivation, polishing treatment 1,4-butanediamine can eliminate nonstoichiometric root these for superior electron transfer. The significantly improves FF Voc photovoltaics, creating an efficiency promotion from 12.64% 19.84%. Moreover, 95% initial optimized is maintained after output operation 1000 h.

Language: Английский

Citations

74
Progress and Perspective on Inorganic CsPbI2Br Perovskite Solar Cells DOI
Jing Song, Haibing Xie, Eng Liang Lim

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(40)

Published: Sept. 1, 2022

Abstract Over the past few years, all‐inorganic perovskite solar cells (PSCs), especially CsPbI 2 Br PSCs, have received much attention because of their excellent thermal stability and a suitable trade‐off between light absorption higher phase among family inorganic perovskites. In this progress report, realization highly efficient stable PSCs is summarized through preparation process, additive engineering, interface modification, transport material selection. Furthermore, application in tandem its large‐area development are highlighted. Finally, challenges outlook discussed for further performance improvement future practical deployment.

Language: Английский

Citations

73
Mitigating Surface Deficiencies of Perovskite Single Crystals Enables Efficient Solar Cells with Enhanced Moisture and Reverse‐Bias Stability DOI
Xinbo Guo, Ning Li,

Yushu Xu

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(22)

Published: Feb. 22, 2023

Abstract Metal halide perovskite single crystals are promising for diverse optoelectronic applications due to their outstanding properties. In comparison the bulk, crystal surface suffers from high defect density and is moisture sensitive; however, modification strategies of relatively deficient. Herein, solar cells based on methylammonium lead triiodide (MAPbI 3 ) thin selected as a prototype improve single‐crystal devices by modification. The trap passivation protection against MAPbI achieved one bifunctional molecule 3‐mercaptopropyl(dimethoxy)methylsilane (MDMS). sulfur atom MDMS can coordinate with bare Pb 2+ reduce nonradiative recombination. As result, modified show remarkable efficiency 22.2%, which highest value cells. Moreover, mitigates ion migration, leading enhanced reverse‐bias stability. Finally, cross‐link silane molecules forms protective layer surface, results in stability both materials devices. This work provides an effective way crystals, important improving performance cells, photodetectors, X‐ray detectors, etc.

Language: Английский

Citations

59
Highly Efficient and Air‐Stable Inorganic Perovskite Solar Cells Enabled by Polylactic Acid Modification DOI

Hanrui Xiao,

Chuantian Zuo, Keyou Yan

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(32)

Published: July 23, 2023

Abstract Inorganic perovskite solar cells (PSCs) suffer from serious carrier recombination and open‐circuit voltage loss because of surface defects unfavorable energy level alignment. Herein, a polylactic acid (PLA) modification approach to improve the performance mixed‐halide inorganic perovskites is reported. First, are effectively passivated through strong interaction between C═O in PLA undercoordinated Pb 2+ . Second, secondary grain growth induced by modification, resulting larger sizes. Third, makes region change n‐ p‐type, favoring charge transport hole layer (HTL). The modified films enable PSCs with less nonradiative lower loss. Consequently, record PCEs 19.12% 18.05% achieved for CsPbI 2.25 Br 0.75 2 PSCs, respectively. PSC an active area 1 cm shows PCE 16.41%. A 14.70% HTL‐free carbon electrode. In addition, significantly improved air stability due hydrophobic coating. This work suggests that effective achieving efficient, stable, scalable, low‐cost PSCs.

Language: Английский

Citations

48
Inorganic CsPbI2Br halide perovskites: from fundamentals to solar cell optimizations DOI
Eng Liang Lim, Jinxin Yang, Zhanhua Wei

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(3), P. 862 - 888

Published: Jan. 1, 2023

This review provides fundamental knowledge of inorganic CsPbI 2 Br perovskites and up-to-date/cutting-edge in solar cell applications.

Language: Английский

Citations

46
Surface Defects Management by In Situ Etching with Methanol for Efficient Inverted Inorganic Perovskite Solar Cells DOI

Hongrui Sun,

Sanlong Wang,

Shanshan Qi

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(23)

Published: March 15, 2023

Abstract Inorganic perovskite solar cells (IPSCs) have developed rapidly due to their good thermal stability and the bandgap suitable for perovskite/silicon tandem cells. However, large open‐circuit voltage (V OC ) deficit derived from surface defects energy level structure mismatch impede development of device performance, especially in P‐I‐N IPSCs. Herein, an innovative situ etching (ISE) treatment method is proposed reduce through methanol without additional passivator. It found that films treated with result a slight excess PbI 2 on inserted into grain boundaries. Therefore, successful decrease by passivation boundary greatly trap density films. And larger work function contributes band bending downward forms gradient alignment at I/N interface, which accelerates extraction charge carriers. As result, efficiency CsPbI 2.85 Br 0.15 inverted IPSC enhanced 16.00% 19.34%, one mostly efficient This provides original idea passivator manage inorganic perovskite.

Language: Английский

Citations

45
1D Choline‐PbI3‐Based Heterostructure Boosts Efficiency and Stability of CsPbI3 Perovskite Solar Cells DOI
Jianxin Zhang,

Guizhi Zhang,

Peiyang Su

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(25)

Published: April 26, 2023

Defects in perovskite are key factors limiting the photovoltaic performance and stability of solar cells (PSCs). Generally, choline halide (ChX) can effectively passivate defects by binding with charged point perovskite. However, we verified that ChI react CsPbI3 to form a novel crystal phase one-dimensional (1D) ChPbI3 , which constructs 1D/3D heterostructure 3D passivating more then resulting significantly improved photoluminescence lifetime from 20.2 ns 49.4 ns. Moreover, outstanding chemical inertness 1D repair undesired δ-CsPbI3 deficiency during its formation process enhance film. Benefiting heterostructure, carbon-based PSCs (C-PSCs) delivered champion efficiency 18.05 % new certified record 17.8 hole transport material (HTM)-free inorganic C-PSCs.

Language: Английский

Citations

43
Synergistic Crystallization Kinetics Modulation and Deep/Shallow Level Defect Passivation via an Organometallic Cobaltocenium Salt Toward High‐Performance Inverted Perovskite Solar Cells DOI
Xingyu Pu, Qi Cao,

Xilai He

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(8)

Published: Jan. 9, 2024

Abstract Numerous deep/shallow level defects generated at the surface/grain boundaries of perovskite during uncontrollable crystallization pose a formidable challenge to photovoltaic performance solar cells (PSCs). Herein, an organometallic cobaltocenium salt additive, 1‐propanol‐2‐(1,2,3‐triazol‐4‐yl) hexafluorophosphate (PTCoPF 6 ), is incorporated into precursor solution regulate and minimize holistic for high‐performance inverted PSCs. The cations PF − in PTCoPF stabilize Pb‐I framework repair shallow‐level positively negatively charged vacancies perovskite. N═N triazole ring can passivate deep‐level uncoordinated lead. interaction between materials delays nucleation crystal growth, ensuring high‐quality with large grains, suppressing non‐radiative recombination ion migration. Therefore, ‐incorporated PSC achieves impressive power conversion efficiency 25.03% outstanding long‐term stability. Unencapsulated encapsulated PSCs maintain 93% 95% their initial efficiencies under 85 °C storage nitrogen atmosphere 1000 h maximum point tracking nearly h, respectively. Synergistic kinetic modulation defect passivation ionized metal‐organic complex additives will become prevalent methods improve stability

Language: Английский

Citations

23
Annual research review of perovskite solar cells in 2023 DOI Creative Commons

Qisen Zhou,

Xiaoxuan Liu, Zonghao Liu

et al.

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

Citations

20