Surface Potential Homogenization Improves Perovskite Solar Cell Performance DOI

Yao Xu,

Jiangkai Yu,

Songtao Liu

и другие.

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Abstract The synthesis of multicomponent metal halide perovskites (MHPs) by cationic and/or alloying allows band gap tuning, optimizing performance and improving stability. However, these materials often suffer from compositional, structural, property inhomogeneities, leading to uneven carrier transport significant non‐radiative recombination losses in lead perovskites. While many researchers have focused on the aggregation perovskite ions, impact surface potential has received relatively less attention. In this study, multifunctional ionic liquid 1‐allyl‐3‐methylimidazole dicyanamide (AMI) is introduced into precursor effectively regulate layer. This approach inhibits recombination, enhances injection, improves device performance. Surface homogenization within layer leads simultaneous improvements both efficiency stability solar cells. For wide‐bandgap (1.81 eV), optimal power conversion (PCE) reaches 20.44%, with an open‐circuit voltage ( V oc ) 1.339 V, a short‐circuit current density J sc 17.92 mA cm −2 , high fill factor (FF) 85%. strategy also proved effective for conventional bandgap cells (PSCs) (1.53 increase performance, PCE increasing 23.22% 25.41%.

Язык: Английский

Buried Interface Modulation Using Self‐Assembled Monolayer and Ionic Liquid Hybrids for High‐Performance Perovskite and Perovskite/CuInGaSe2 Tandem Photovoltaics DOI Open Access
Zihao Feng, Xinxing Liu, Ting Tian

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 6, 2025

Effective modifications for the buried interface between self-assembled monolayers (SAMs) and perovskites are vital development of efficient, stable inverted perovskite solar cells (PSCs) their tandem photovoltaics. Herein, an ionic-liquid-SAM hybrid strategy is developed to synergistically optimize uniformity SAMs crystallization above. Specifically, ionic liquid 1-butyl-3-methyl-1H-imidazol-3-iumbis((trifluoromethyl)sulfonyl)amide (BMIMTFSI) incorporated into SAM solution, enabling reduced surface roughness, improved wettability, a more evenly distributed potential film. Leveraging this optimized substrate, favorable growth high-quality crystals achieved. Furthermore, introduced functional ions readily bond with perovskites, effectively passivating undesirable cation or halide vacancies near interface. Remarkably, high power conversion efficiencies (PCEs) 25.68% 22.53% obtained normal-bandgap (≈1.55 eV) wide-bandgap (WBG) (≈1.66 PSCs along operational stability. Additionally, champion PCE 19.50% achieved semitransparent WBG PSCs, further delivering impressive 28.34% integrated four-terminal photovoltaics when combined CuInGaSe2 cells.

Язык: Английский

Процитировано

4

Co‐Adsorbent Boosting the Performance of Perovskite Solar Cell Based on Hole‐Selective Self‐Assembled Molecules DOI
Yujun Liu, Chao Zhou, Fei Wang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract The inverted perovskite solar cells based on hole‐selective self‐assembled molecules (SAMs) have been setting new efficiency benchmarks. However, the agglomeration of SAM and lack defect passivation ability are two critical issues that need to be addressed. It is demonstrated by blending co‐adsorbent 4‐phosphoricbutyl ammonium iodide (4PBAI) with 4‐(7H‐dibenzo[c,g]carbazole‐7‐yl) phosphonic acid (4PADCB), enhanced homogeneity, conductivity, better energy levels can realized for co‐SAM contact. functional group 4PBAI also effectively passivate defects at buried interface template high‐quality growth. Assisted synergistic top modification, power conversion optimized device reaches 24.96%, which retain 95% initial after 1200 h in ambient unencapsulated device. findings suggest a well‐designed address limitations further enhance performance cutting‐edge SAMs.

Язык: Английский

Процитировано

3

A Review on Multifaceted Role of Ionic Liquids in Modern Energy Storage Systems: From Electrochemical Performance to Environmental Sustainability DOI
Harpreet Kaur, Abhinay Thakur, Ramesh Chand Thakur

и другие.

Energy & Fuels, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Язык: Английский

Процитировано

3

Silver nanoparticle/amorphous tantalum nitride antenna for boosting efficiency of perovskite solar cells: Synergistically achieving near-field enhancement and chemical passivation DOI
Lexin Wang,

Yue Gou,

Meihan Liu

и другие.

Solar Energy Materials and Solar Cells, Год журнала: 2025, Номер 282, С. 113417 - 113417

Опубликована: Янв. 12, 2025

Язык: Английский

Процитировано

1

Ligand‐Induced Crystallization Control in MAPbBr3 Hybrid Perovskites for High Quality Nanostructured Films DOI Creative Commons
Markus W. Heindl, Michael F. Lichtenegger, Tim Kodalle

и другие.

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Abstract Controlling the formation of hybrid perovskite thin films is crucial in obtaining high‐performance optoelectronic devices, since factors like morphology and film thickness have a profound impact on film's functionality. For light‐emitting applications grain sizes sub‐micrometer‐range previously shown enhanced brightness. It therefore to develop simple, yet reliable methods produce such films. Here, solution‐based synthesis protocol for on‐substrate MAPbBr 3 (MA = methylammonium) nanostructures by adding bifunctional rac ‐3‐aminobutyric acid precursor solution reported. This route improves key optical properties as photoluminescence quantum yields life times excited states inducing controlled slow‐down suppressing agglomeration effects. In situ spectroscopy reveals delayed slowed down crystallization process, which achieves structures with much reduced defect densities. Further, aggregation can be amount amino added adjusting allows cubic crystallites targeted size from nanometer micrometer scales. The nanocrystalline samples show amplified spontaneous emission (ASE) intensities, ASE thresholds purer signals, compared pristine films, even under intense driving, making them promising lasing applications.

Язык: Английский

Процитировано

1

Progress and challenges: a review of ionic liquid treatment for efficient and stable perovskite solar cells DOI
Jintao Ma, Lin Wang,

Kun He

и другие.

Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(29), С. 10837 - 10856

Опубликована: Янв. 1, 2024

While perovskite solar cells (PSCs) have achieved remarkable power conversion efficiencies (PCEs) exceeding 26.1%, significant challenges remain in enhancing their efficiency and stability for commercial viability.

Язык: Английский

Процитировано

3

Ionic Liquid Engineering Enables 1D/3D Perovskite Photovoltaics with > 25% Efficiency: A Real-time Study Exploring Formation Mechanism of 1D Perovskites DOI
Fei Wang,

Yonggui Sun,

Taomiao Wang

и другие.

Nano Energy, Год журнала: 2024, Номер 129, С. 110063 - 110063

Опубликована: Июль 28, 2024

Язык: Английский

Процитировано

3

Minimizing voltage loss for perovskite solar cells via synergistically passivating defects and reinforcing interfacial electric field DOI
Lexin Wang, Meihan Liu, Xinxuan Yang

и другие.

Nano Energy, Год журнала: 2024, Номер 131, С. 110245 - 110245

Опубликована: Сен. 10, 2024

Язык: Английский

Процитировано

3

Sulfonated ionic liquids containing imidazolium ring and fluorine atoms for interface modification of HTL-free carbon-electroded CsPbI2Br perovskite solar cells DOI

Wenxia Ye,

Yuxi Zeng,

Jianlin Chen

и другие.

Materials Today Energy, Год журнала: 2025, Номер unknown, С. 101799 - 101799

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

Top-Down Dual-Interface Carrier Management for Highly Efficient and Stable Perovskite/Silicon Tandem Solar Cells DOI Creative Commons
Xin Li, Zhiqin Ying, Shuo Li

и другие.

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Фев. 11, 2025

Abstract Despite significant advancements in the power conversion efficiency (PCE) of perovskite/silicon tandem solar cells, improving carrier management top cells remains challenging due to defective dual interfaces wide-bandgap perovskite, particularly on textured silicon surfaces. Herein, a series halide ions (Cl − , Br I ) substituted piperazinium salts are designed and synthesized as post-treatment modifiers for perovskite Notably, chloride induces an asymmetric bidirectional distribution from bottom surface, with large cations concentrating at surface small anions migrating downward accumulate buried interface. This results effective dual-interface defect passivation energy band modulation, enabling (1.68 eV) achieve PCE 22.3% record product open-circuit voltage × fill factor (84.4% relative Shockley–Queisser limit). Furthermore, device retains 91.3% its initial after 1200 h maximum point tracking without encapsulation. When integrated double-textured heterojunction remarkable 31.5% is achieved 1.04 cm 2 monolithic cell, exhibiting excellent long-term operational stability ( T 80 = 755 h) encapsulation ambient air. work provides convenient strategy engineering making high-efficiency stable platforms.

Язык: Английский

Процитировано

0