Solar Energy Materials and Solar Cells最新文献_第2页

Resonant-reflecting/absorbing coatings for maximizing the efficiency of hybrid thermal-electric power generation 共振反射/吸收涂层，最大限度地提高热电混合发电的效率

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-27 DOI: 10.1016/j.solmat.2025.113813

Tomas Klinavičius , Gabija Riaubaitė , Raymond C. Rumpf , Tomas Tamulevičius

{"title":"Resonant-reflecting/absorbing coatings for maximizing the efficiency of hybrid thermal-electric power generation","authors":"Tomas Klinavičius , Gabija Riaubaitė , Raymond C. Rumpf , Tomas Tamulevičius","doi":"10.1016/j.solmat.2025.113813","DOIUrl":"10.1016/j.solmat.2025.113813","url":null,"abstract":"<div><div>Solar energy is one of the fastest-rising forms of renewable energy, with photovoltaics (PV) being the most popular harvesting method. Photovoltaic solar cells suffer from limited exploitation of the solar spectrum, with unused light being the cause of parasitic phenomena such as thermalization and degradation of useful lifetime. These problems are overcome by hybrid thermal-electric power generation. In this scheme, a selective reflector-absorber provides the PV cell only with light that can be effectively converted into electrical energy and absorbs the rest of the solar spectrum, converting it to heat which is further utilized. This dramatically increases the useful lifetime of PV cells while increasing the overall energy conversion efficiency of the system. We present selective ultra-thin selective reflectors-absorbers, based on Fano-resonant optical coatings and metal-dielectric-metal optical coatings, which are tailored for typical single- and multi-junction solar cells. The tailored reflectance in the visible spectral region and absorption in the remainder of the ultraviolet and infrared solar spectrum enables up to 60.58 % total thermal-electric system efficiency.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113813"},"PeriodicalIF":6.3,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rating vehicle-integrated photovoltaics: power and energy loss by curved surface 额定车载集成光伏：曲面造成的功率和能量损失

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-27 DOI: 10.1016/j.solmat.2025.113814

Kenji Araki , Shota Matsushita , Yasuyuki Ota , Shinya Iwasaki , Yohei Hosokawa , Kensuke Nishioka

引用次数: 0

Infrared optical properties of LaCoO3 thin films for thermal regulation in solar collectors 太阳能集热器热调节用LaCoO3薄膜的红外光学性能

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-26 DOI: 10.1016/j.solmat.2025.113815

Abdoul Azise Bande , Arthur Tausch , Jérémie Drevillon , Nicolas Portha , Fabien Capon

{"title":"Infrared optical properties of LaCoO3 thin films for thermal regulation in solar collectors","authors":"Abdoul Azise Bande , Arthur Tausch , Jérémie Drevillon , Nicolas Portha , Fabien Capon","doi":"10.1016/j.solmat.2025.113815","DOIUrl":"10.1016/j.solmat.2025.113815","url":null,"abstract":"<div><div>The perovskite LaCoO<sub>3</sub> can be used as a solar-selective layer in flat solar absorbers with an optimal thickness of approximately 600 nm. This thermochromic material is particularly well-suited for thermal regulation, with a significant increase in infrared emissivity occurring below the transition temperature. The optical properties of LaCoO<sub>3</sub> thin films deposited by magnetron sputtering were analyzed using Fourier Transform Infrared (FTIR) spectroscopy, measuring transmittance and reflectance variations across the mid-infrared spectral range. The transmittance and reflectance variations were plotted at a wavelength of 8 μm as a function of temperature. By identifying an inflection point, the derivative pinpointed the maximum thermochromic effect at approximately 300 °C. This methodology also facilitated comparison with VO<sub>2</sub>-based selective coatings. Subsequently, a thermal camera was then employed to examine films of three different thicknesses, evaluated using two distinct methods. The first method consisted of plotting the infrared temperature measured by a thermal camera against the actual temperature. This technique highlighted the temperature dependence of the thermochromic effect in relation to film thickness. The second method, which accounted for all radiation contributions within the measurement environment, allowed the calculation of emissivity across Band III (7.5–13 μm). This approach revealed the onset of the thermochromic effect at approximately 80 °C for a film thickness of 551 nm.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113815"},"PeriodicalIF":6.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enabling 95 % bifaciality of efficient TOPCon solar cells by rear-side selective sunken pyramid structure and zebra-crossing passivation contact 通过后侧选择性凹陷金字塔结构和斑马交叉钝化接触，使高效TOPCon太阳能电池具有95%的双面性

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-26 DOI: 10.1016/j.solmat.2025.113809

Jiale Feng , Bin Yu , Yu He , Aiwu Lv , Jianbin Fan , Lei Yang , Zhengyue Xia , Zhonglan Li , Xiajie Meng , Fangdan Jiang , Guoqiang Xing , Jian Yu

{"title":"Enabling 95 % bifaciality of efficient TOPCon solar cells by rear-side selective sunken pyramid structure and zebra-crossing passivation contact","authors":"Jiale Feng , Bin Yu , Yu He , Aiwu Lv , Jianbin Fan , Lei Yang , Zhengyue Xia , Zhonglan Li , Xiajie Meng , Fangdan Jiang , Guoqiang Xing , Jian Yu","doi":"10.1016/j.solmat.2025.113809","DOIUrl":"10.1016/j.solmat.2025.113809","url":null,"abstract":"<div><div>The bifaciality of solar cells plays a crucial role in determining their overall energy generation performance, particularly in high-reflectance environments where enhanced rear-side light absorption can significantly boost power output. Compared to silicon heterojunction solar cells, a major barrier to the further increasing market competitiveness of tunnel oxide passivated contact (TOPCon) solar cells is the lower bifaciality. In this work, we reported an excellent 94.3 % bifaciality of TOPCon solar cells by formation of rear-side selective sunken pyramid structure on the non-electrode area. The zebra-crossing passivation contact technology was developed without sacrificing the efficiency, where the passivation layers were designed as SiO<sub>2</sub>/poly-Si/Al<sub>2</sub>O<sub>3</sub>/SiN<sub><em>x</em></sub> under silver electrodes and Al<sub>2</sub>O<sub>3</sub>/SiN<sub><em>x</em></sub> on rear-side texture area. The optimised rear-side short-circuit current density increased by 3.26 mA/cm<sup>2</sup> compared to the baseline, leading to a notable improvement in rear-side light absorption and current generation. As a proof-of-concept, the bifacial TOPCon photovoltaic modules were encapsulated with an impressive bifaciality of 91.7 % and a power output of 722.0 W. It is the highest bifaciality so far for TOPCon solar cells and modules to the best knowledge. Our study offers a blueprint for designing high bifaciality TOPCon solar cells and modules, making them more efficient and versatile than traditional glass/backsheet modules and accelerating practical application.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113809"},"PeriodicalIF":6.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative study of hot carriers thermalization mechanisms in GAx[Cs0.05(FA0.23MA0.77)0.95]1-xPbIBr2 for hot carrier multi-junction solar cells 热载流子多结太阳能电池GAx[Cs0.05(FA0.23MA0.77)0.95]1-xPbIBr2中热载流子热化机理的定量研究

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-26 DOI: 10.1016/j.solmat.2025.113807

Yi Zhang , Huilong Chen , Junfeng Qu , Rui Wang , Shuhong Xu , Jiayu Zhang , Gavin Conibeer

{"title":"Quantitative study of hot carriers thermalization mechanisms in GAx[Cs0.05(FA0.23MA0.77)0.95]1-xPbIBr2 for hot carrier multi-junction solar cells","authors":"Yi Zhang , Huilong Chen , Junfeng Qu , Rui Wang , Shuhong Xu , Jiayu Zhang , Gavin Conibeer","doi":"10.1016/j.solmat.2025.113807","DOIUrl":"10.1016/j.solmat.2025.113807","url":null,"abstract":"<div><div>The hot carrier multi-junction solar cell (HCMJSC) is an advanced concept solar cell with a theoretical efficiency greater than 65 %, which consists of a thin top junction with a wide bandgap and a thick bottom junction with a narrow bandgap to absorb high and low energy photons, respectively. Wide bandgap perovskites are expected to be a suitable candidate for top absorption layers due to their ease of band engineering. However, the carrier thermalization mechanisms of quaternary A-site perovskites have not been well studied until now. Conventionally, the incorporation of larger A-site cations induces lattice expansion and enhances thermal fluctuations, thereby accelerating carrier cooling. In this work, the incorporation of guanidinium (GA) did not immediately shorten the cooling process but instead exhibited a non-monotonic trend, initially slowing then accelerating the thermalization process. The thermalization coefficients (<em>Q</em><sub><em>th</em></sub>) of the quaternary A-site perovskites with different GA doping ratio were obtained from the power dependent-steady state photoluminescence spectra. Moderate addition of GA can prolong the thermalization process of the hot carriers and reduce <em>Q</em><sub><em>th</em></sub>, which will improve power conversion efficiency, with the optimal effect achieved at 3 % GA incorporation in the A-site. This work lays the foundation for a theoretical framework that incorporates perovskite materials which may be suitable as the top absorption layer of HCMJSC.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113807"},"PeriodicalIF":6.3,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface planarization enabled low-dimensional perovskite-leveling compound for carbon-based CsPbI2Br perovskite solar cells 碳基CsPbI2Br钙钛矿太阳能电池表面平面化实现了低维钙钛矿流平化合物

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-25 DOI: 10.1016/j.solmat.2025.113798

Xinlong Zhang , Jincheng Huang , Hengzhi Zuo , Yuanfang Zhang , Runze Yang , Jianlin Chen , Guijun Li , Wei Li , Zhuoyin Peng

{"title":"Surface planarization enabled low-dimensional perovskite-leveling compound for carbon-based CsPbI2Br perovskite solar cells","authors":"Xinlong Zhang , Jincheng Huang , Hengzhi Zuo , Yuanfang Zhang , Runze Yang , Jianlin Chen , Guijun Li , Wei Li , Zhuoyin Peng","doi":"10.1016/j.solmat.2025.113798","DOIUrl":"10.1016/j.solmat.2025.113798","url":null,"abstract":"<div><div>The carbon-based, hole-transporting layer-free all-inorganic CsPbI<sub>2</sub>Br perovskite solar cells (HTL-free C-PSCs) offer significant promise for photovoltaic applications due to their cost-effectiveness and remarkable stability. However, the substantial undercoordinated Pb<sup>2+</sup> and halogen vacancies at the carbon electrode/perovskite interface seriously hamper their performance. Herein, 4-fluorobenzylamine trifluoroacetate (p-F-PMATFA) was introduced to reacted directly with the perovskite layer's surface, yielding a low-dimensional compound that effectively levels the carbon/perovskite interface. This strategy improves the quality of the perovskite film, resulting in uniform and dense film topography, diminished trap density, and mitigated charge recombination and ion migration. Furthermore, the formation of highly planar interfaces and the passivation of interfacial defects facilitates efficient hole extraction at the carbon/perovskite junction. As a result, the champion device exhibits a high power conversion efficiency (PCE) of 13.41 %. Notably, the unencapsulated treated device maintains over 95 % of its initial PCE after being stored in a nitrogen atmosphere at 85 °C for 500 h. Our work present a straightforward yet highly effective strategy for developing cost-effective, efficient, and stable HTL-free C-PSCs, offering a promising avenue for future photovoltaic technologies.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113798"},"PeriodicalIF":6.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rheological study on xylitol crystallization for its use as phase change material: analytical and statistical analysis 木糖醇相变材料结晶的流变学研究：分析与统计分析

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-25 DOI: 10.1016/j.solmat.2025.113803

Miguel Navarro , Zeus Gracia , Jesús Asín , Ana Lázaro , Marta Martí , Mónica Delgado

{"title":"Rheological study on xylitol crystallization for its use as phase change material: analytical and statistical analysis","authors":"Miguel Navarro , Zeus Gracia , Jesús Asín , Ana Lázaro , Marta Martí , Mónica Delgado","doi":"10.1016/j.solmat.2025.113803","DOIUrl":"10.1016/j.solmat.2025.113803","url":null,"abstract":"<div><div>In a global context in which decarbonization of society is wanted through the use of renewable sources, energy storage plays a fundamental role. Among the different forms of energy storage that exists, this work focuses on latent heat energy storage (LHTES) for medium-low temperatures, between 70 °C and 120 °C. Xylitol, a sugar-alcohol, is a promising phase change material (PCM) due to its low cost, low corrosivity, high latent heat (240 J/g) and a melting temperature of 92 °C. However, its use as PCM is hindered by a high degree of supercooling and a low crystallization rate. To address these challenges, this work used a seeding and shearing technique to trigger crystallization. Rheological experiments were performed to monitor viscosity changes during crystallization, in order to study the crystallization induction time. The systematic analysis included the effects of temperature (70–90 °C), shear rate(1-100s<sup>−1</sup>), and seed crystal size (300–400 μm and 600–700 μm). Key results show that temperature is the most dominant factor. The shortest induction time at 70 °C was found at 10s, increasing to 1500s at 90 °C. Increasing seed size and reducing the rheometer gap also shortened induction times, while shear rate had minimal influence, likely due to non-uniform shear during the test. For practical applications, operating at 80 °C is recommended to balance induction time and energy loss due to supercooling. Optimizing shear-triggered mechanism, such as stirred tanks designs, can improve crystallization controllability.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113803"},"PeriodicalIF":6.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solar power generation performance of MoO2/Mo4O11 photothermal nanomaterials MoO2/Mo4O11光热纳米材料的太阳能发电性能

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-24 DOI: 10.1016/j.solmat.2025.113797

Xu Zhao , Yi Liu , Luochen Chen , Zhongkai Wu , Jun Yuan , Lihui Jia

{"title":"Solar power generation performance of MoO2/Mo4O11 photothermal nanomaterials","authors":"Xu Zhao , Yi Liu , Luochen Chen , Zhongkai Wu , Jun Yuan , Lihui Jia","doi":"10.1016/j.solmat.2025.113797","DOIUrl":"10.1016/j.solmat.2025.113797","url":null,"abstract":"<div><div>The two-phase MoO<sub>2</sub>/Mo<sub>4</sub>O<sub>11</sub> NPs were prepared by dry reduction of MoO<sub>3</sub> NPs, which are highly regarded for their excellent solar photovoltaic conversion performance and excellent thermal stability. The materials were tested and found to have less than 10 % reflectance and up to more than 95 % absorption in the range of 200–2500 nm of the AM1.5 global standard solar spectrum. The two-phase MoO<sub>2</sub>/Mo<sub>4</sub>O<sub>11</sub> NPs rapidly warmed up from room temperature to the maximum equilibrium temperature of 50 °C in 20 s under one solar light intensity. And no photothermal degradation occurred under five photothermal cycle tests. The two-phase MoO<sub>2</sub>/Mo<sub>4</sub>O<sub>11</sub> NPs were combined with the temperature difference power generation technology to construct a photothermal power generation device. Under a standard sunlight intensity, the voltage can reach 0.27 V, and the maximum voltage that can be achieved in the photothermal power generation cycle test is almost the same.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113797"},"PeriodicalIF":6.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vertically aligned biphase Cu2O/Cu4O3 heterojunctions for enhanced charge extraction and broad−spectrum solar energy conversion 垂直排列的双相Cu2O/Cu4O3异质结用于增强电荷提取和广谱太阳能转换

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-24 DOI: 10.1016/j.solmat.2025.113810

Jiangyiming Jiang, Simeng Wu, Peisen Liu, Ming Ma, Hongyue Li, Mingyue Meng, Zhuang Xiong, Yun Tian

{"title":"Vertically aligned biphase Cu2O/Cu4O3 heterojunctions for enhanced charge extraction and broad−spectrum solar energy conversion","authors":"Jiangyiming Jiang, Simeng Wu, Peisen Liu, Ming Ma, Hongyue Li, Mingyue Meng, Zhuang Xiong, Yun Tian","doi":"10.1016/j.solmat.2025.113810","DOIUrl":"10.1016/j.solmat.2025.113810","url":null,"abstract":"<div><div>Cuprous oxide (Cu<sub>2</sub>O) is a promising p-type semiconductor for solar energy conversion owing to its direct bandgap (2.1−2.5 eV), earth abundance, and environmental benignity. However, conventional Cu<sub>2</sub>O-based solar cells are typically based on single-phase structures, and their conversion efficiencies remain significantly below the theoretical limit of 20 % due to limitations in light absorption wavelength range and carrier transport length. This study proposes a strategy for the precise fabrication of vertically aligned biphase Cu<sub>2</sub>O/Cu<sub>4</sub>O<sub>3</sub> solar cells <em>via</em> reactive magnetron sputtering under controlled oxygen flux modulation. The results demonstrate that atomically sharp phase interfaces and vertically ordered nanostructures within the Cu<sub>2</sub>O/Cu<sub>4</sub>O<sub>3</sub> system facilitate continuous carrier transport pathways and effectively suppress recombination losses at grain boundaries, resulting in a 22 % improvement in carrier collection efficiency. Moreover, the type−II staggered band alignment at the Cu<sub>2</sub>O/Cu<sub>4</sub>O<sub>3</sub> heterojunction enables complementary bandgap synergy, extending the photoresponse threshold from 518 nm to 623 nm and enhancing light absorption by 53 %, ultimately yielding a power conversion efficiency of 1.06 %, which represents a 193 % improvement over single-phase Cu<sub>2</sub>O devices. Our work establishes a universal design paradigm for vertically ordered nanocomposites, advancing the development of high-performance copper-oxide photovoltaics and offering insights for broader optoelectronic and artificial photosynthesis systems.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113810"},"PeriodicalIF":6.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sb2S3/MnS interface optimization for improved all-inorganic Sb2S3 solar cell performance based on NH4F impregnation 基于NH4F浸渍的Sb2S3/MnS界面优化改善全无机Sb2S3太阳能电池性能

IF 6.3 2区材料科学

Solar Energy Materials and Solar Cells Pub Date : 2025-06-24 DOI: 10.1016/j.solmat.2025.113805

Yuan Li, Xiaokang Lu, Sanmin Liu, Minghong Rui, Sumei Wang

{"title":"Sb2S3/MnS interface optimization for improved all-inorganic Sb2S3 solar cell performance based on NH4F impregnation","authors":"Yuan Li, Xiaokang Lu, Sanmin Liu, Minghong Rui, Sumei Wang","doi":"10.1016/j.solmat.2025.113805","DOIUrl":"10.1016/j.solmat.2025.113805","url":null,"abstract":"<div><div>Sb<sub>2</sub>S<sub>3</sub> thin-film solar cells, as an emerging photovoltaic device, have drawn considerable attention due to their large light absorption, abundant raw materials, cost-effectiveness, and environmental sustainability. However, the presence of complex defects, such as vacancy (V<sub>S</sub> and V<sub>Sb</sub>) and antisite (Sb<sub>S</sub> and S<sub>Sb</sub>), in Sb<sub>2</sub>S<sub>3</sub> thin films and severe interface recombination between the carrier transport layer and the absorber are significant obstacles, which leads to a large discrepancy between the photovoltaic conversion efficiency (PCE) of current solar cells and theoretical predictions. In this study, a facile ammonium fluoride (NH<sub>4</sub>F) impregnation process was developed to achieve high-performance Sb<sub>2</sub>S<sub>3</sub> solar cells. With the optimal impregnation concentration of 0.07 M and impregnation time of 5 min, this NH<sub>4</sub>F impregnation treatment effectively produces high-quality Sb<sub>2</sub>S<sub>3</sub> films by reducing surface roughness, improving hydrophilicity, and a preferred [hk1] orientation of Sb<sub>2</sub>S<sub>3</sub> films. Furthermore, the Sb<sub>2</sub>S<sub>3</sub>/MnS heterojunction interface was significantly improved by reducing nonradiative recombination and regulating energy level alignment. The final PCE of the NH<sub>4</sub>F-impregnated Sb<sub>2</sub>S<sub>3</sub> solar cells reached 6.55 %, representing a 21 % enhancement over untreated devices. This study provides a new approach to optimize the photoelectric conversion performance of Sb<sub>2</sub>S<sub>3</sub> photovoltaic devices and simultaneously offers crucial technical support for high-efficiency thin-film solar cells.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"292 ","pages":"Article 113805"},"PeriodicalIF":6.3,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0