P. Procel , Y. Zhou , M. Verkou , M. Leonardi , D. Di Girolamo , G. Giuliano , O. Dupré , Y. Blom , M.R. Vogt , R. Santbergen , F. Rametta , M. Foti , C. Gerardi , M. Zeman , O. Isabella
{"title":"PV multiscale modelling of perovskite / silicon two-terminal devices: from accurate cell performance simulation to energy yield prediction","authors":"P. Procel , Y. Zhou , M. Verkou , M. Leonardi , D. Di Girolamo , G. Giuliano , O. Dupré , Y. Blom , M.R. Vogt , R. Santbergen , F. Rametta , M. Foti , C. Gerardi , M. Zeman , O. Isabella","doi":"10.1016/j.solmat.2025.113864","DOIUrl":"10.1016/j.solmat.2025.113864","url":null,"abstract":"<div><div>Recent conversion efficiency breakthroughs in double-junction (tandem) perovskite/crystalline silicon solar cells demand advanced opto-thermo-electrical simulations, that are critical for translating laboratory results into realistic photovoltaic module and system performance. A holistic framework is here developed and presented, combining cell-level simulations, spectral analysis, PV module and PV system modelling. After validating the deployed physics models against measured cells and modules, hourly spectral irradiances for Delft, the Netherlands, and Catania, Italy, are generated and clustered into representative “blue-rich” and “red-rich” spectra. The effects of spectral variations on the current-matching and energy yield of tandem modules are quantified. Realistic module architectures are simulated, integrating dynamic temperature and spectrum data. Temperature coefficients are derived as a function of both irradiance and module temperature, significantly improving upon traditional indoor-derived values. Results show that standard indoor-derived coefficients under-/overestimate values in realistic conditions, highlighting the ultimate need for location-specific power matrixes. This study offers a robust pathway to predict tandem module energy yields across seasons and climates, supporting optimized design choices for industrial production and future PV installations.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113864"},"PeriodicalIF":6.3,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144724857","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}
{"title":"A multidimensional study on tomato drying in greenhouse solar systems: From life cycle impacts on quality characteristics","authors":"Anand Kushwah , Anshu Anand , Supriya Raj , Anil Kumar , M.K. Gaur","doi":"10.1016/j.solmat.2025.113867","DOIUrl":"10.1016/j.solmat.2025.113867","url":null,"abstract":"<div><div>This study focuses on the performing a life-cycle assessment of two different solar drying systems developed in Gwalior, Madhya Pradesh, India. Present study evaluates the thermal characteristic and morphology analysis of tomato slices in a greenhouse solar drying system (GHSDS) and compares it with traditional open sun drying (OSD) methods. Experiments assessed drying characteristics, mass transfer coefficient, and quality of dried tomato slices under both drying techniques. The GHSDS achieved a maximum temperature of 59.5 °C with solar intensity of 855 W/m<sup>2</sup>. The initial moisture content of 81.25 % in tomato slices decreased to 11.22 % in GHSDS and 22 % in OSD within 10 h. Drying rates were 0.65 for GHSDS and 0.61 kg water/kg solid. hr for OSD. The Prakash and Kumar model accurately described the drying kinetics for both methods. GHSDS showed increases of 6.45 % in effective moisture diffusivity, 7.07 % in mass transfer coefficient, and 46.6 % in heat transfer coefficient compared to OSD. Activation energy (<span><math><mrow><msub><mi>E</mi><mi>a</mi></msub></mrow></math></span>) was 35.32 kJ/mol for GHSDS and 61.54 kJ/mol for OSD. The Life Cycle Assessment (LCA) technique was employed to compare the environmental impacts of a GHSDS with those of a parabolic solar drying system (PSDS). The results revealed significant differences between the two systems across all evaluated categories. The GHSDS consistently demonstrated a lower environmental impact compared to the PSDS. This study is the first to integrate drying kinetics, thermal performance, quality assessment, morphology analysis, and a full Life Cycle Assessment of greenhouse solar drying for tomato slices.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113867"},"PeriodicalIF":6.3,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722835","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}
Liu Lu , Gang Liu , Yuanji Li , Xiaohu Yang , Ya-Ling He
{"title":"Experimental modifications for optimizing supercooling and phase separation in phase change materials: Calcium chloride hexahydrate and barium hydroxide octahydrate eutectic hydrate salts","authors":"Liu Lu , Gang Liu , Yuanji Li , Xiaohu Yang , Ya-Ling He","doi":"10.1016/j.solmat.2025.113862","DOIUrl":"10.1016/j.solmat.2025.113862","url":null,"abstract":"<div><div>Low-cost composite phase change materials (PCMs) are promising candidates for large-scale thermal energy storage and industrial waste heat utilization. In this study, two eutectic hydrated salt PCMs, CaCl<sub>2</sub>·6H<sub>2</sub>O and Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, are prepared, modified, and characterized to improve thermal performance and cycling stability. The CaCl<sub>2</sub>·6H<sub>2</sub>O-based composite PCM is formulated using industrial-grade CaCl<sub>2</sub>·6H<sub>2</sub>O, MgCl<sub>2</sub>·6H<sub>2</sub>O, SrCl<sub>2</sub>·6H<sub>2</sub>O, and hydroxyethyl cellulose (HEC). The influence of SrCl<sub>2</sub>·6H<sub>2</sub>O at 1 wt%, 2 wt%, and 3 wt% on supercooling was evaluated, with 2 wt% SrCl<sub>2</sub>·6H<sub>2</sub>O exhibiting the most effective suppression of supercooling. A low content of MgCl<sub>2</sub>·6H<sub>2</sub>O improves cycling stability, while 0.5 wt% HEC significantly reduces phase separation. The optimized composite shows a melting temperature of 29.2 °C, with latent heats of melting and solidification of 170.6 J/g and 183.9 J/g, reflecting changes of −6.8 %, 2.1 %, and 1.3 % compared to the unmodified sample. The supercooling and phase separation behavior of Ba(OH)<sub>2</sub>·8H<sub>2</sub>O is also experimentally optimized. Experimental results demonstrate that CaF<sub>2</sub> and BaCO<sub>3</sub> effectively suppress supercooling, while a combination of 1 wt% gelatin and 1 wt% HEC achieves optimal phase separation control, outperforming either additive alone. The final formulation consists of 97 wt% Ba(OH)<sub>2</sub>·8H<sub>2</sub>O, 1 wt% BaCO<sub>3</sub>, 1 wt% gelatin, and 1 wt% HEC. The resulting composite exhibits a melting temperature of 80.0 °C, and latent heats of melting and solidification of 244.4 J/g and 223.6 J/g. Compared to the ones before modification, these properties change slightly by −1.5 %, 4.5 %, and 3.1 %, respectively.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113862"},"PeriodicalIF":6.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713350","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}
{"title":"Solution-processed coating methods for perovskite films towards large-scale photovoltaics","authors":"Jieyi Chen , Bowen Ruan , Zihao Zhai , Xiang Li , Yuan Zhang , Kok-Keong Chong , Doojin Vak , Huiqiong Zhou","doi":"10.1016/j.solmat.2025.113872","DOIUrl":"10.1016/j.solmat.2025.113872","url":null,"abstract":"<div><div>Over the past decade, organic-inorganic metal halide perovskite solar cells (PSCs) have achieved remarkable advancements in performance, obtaining certified power conversion efficiencies (PCEs) of up to 27 % that is comparable to those of crystalline silicon solar cells. With their unique advantages such as low cost, high efficiency, simple fabrication, and broad applicability, PSCs are emerging as a leading contender for future large-scale photovoltaic production. However, one of the key challenges hindering commercialization is the need for upscaling the PSC without significantly scarifying the PCE. Developing scalable deposition techniques capable of producing large-area, uniform, and high-quality perovskite films is critical for fabricating efficient, reproducible, and stable perovskite devices as well as modules. In-depth knowledge and advanced research on the fabrication processes are essential to control the quality of large-area films. This review discusses scalable solution-based deposition methods, including blade coating, slot-die coating, and spray coating, alongside recent developments in these techniques. Last but not the least, we also explores the challenges and perspectives that must be addressed to further advance the commercialization of PSCs.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113872"},"PeriodicalIF":6.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713352","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}
Abhishek Sharma , Ram Prakash Sharma , Arpita Biswas , Shaik Mohammed Ibrahim
{"title":"Exploring the impact of nanoparticle aggregation in parabolic trough solar collectors with a neural network-based predictions for enhanced thermal performance","authors":"Abhishek Sharma , Ram Prakash Sharma , Arpita Biswas , Shaik Mohammed Ibrahim","doi":"10.1016/j.solmat.2025.113866","DOIUrl":"10.1016/j.solmat.2025.113866","url":null,"abstract":"<div><div>Parabolic Trough Solar Collectors (PTSCs) efficiently harness solar thermal energy, making them highly suitable for industrial heating, electricity generation, and water desalination processes. However, their thermal performance is often limited by thermal losses. To address this, the present study investigates how the presence and absence of nanoparticle aggregation affect the heat transfer characteristics of a Casson nanofluid flowing through the cylindrical absorber tube of a PTSC. The dimensional form of the proposed model is converted into a standardized non-dimensional form with the help of adequate transformations. The non-dimensional form of ordinary differential equations (ODEs) is solved utilizing the Runge-Kutta method with the integration of shooting technique. Furthermore, a machine learning-based regression analysis using an artificial neural network is employed to develop a predictive model for thermal transmission with high accuracy. The Levenberg-Marquardt algorithm is applied in conjunction with well-structured datasets for training, testing, and validation phases. The outcomes reveal that the effects of magnetization, slip, and Casson parameters are more pronounced in the case of without aggregation than with aggregation. Moreover, an essential impact of the study is observed in solar power plants, food processing, solar thermal desalination, and solar cooling.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113866"},"PeriodicalIF":6.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713351","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}
Fabian T. Thome , Elvin Garashli , Wolfram Kwapil , Florian Schindler , Martin C. Schubert
{"title":"Light and elevated temperature induced degradation in gallium-doped silicon: A complete parametric description","authors":"Fabian T. Thome , Elvin Garashli , Wolfram Kwapil , Florian Schindler , Martin C. Schubert","doi":"10.1016/j.solmat.2025.113854","DOIUrl":"10.1016/j.solmat.2025.113854","url":null,"abstract":"<div><div>Despite extensive research on light and elevated temperature induced degradation (LeTID), a complete quantitative description of all relevant subprocesses is still lacking. In particular, the phenomenon of temporary recovery, which opposes the degradation transition, is poorly understood. In this study, we treat gallium-doped Czochralski silicon wafers at varying temperatures and minority charge carrier densities, measuring the resulting changes in effective lifetime. By studying temporary recovery in isolation from degradation and regeneration, we find that the rate of temporary recovery increases as temperature decreases. This is quantified by a negative activation energy of <span><math><mrow><msubsup><mi>E</mi><mi>a</mi><mtext>BA</mtext></msubsup><mo>=</mo><mo>−</mo><mn>0.6</mn><mspace></mspace><mtext>eV</mtext></mrow></math></span>. This <em>reversed</em> Arrhenius behavior imposes restrictions on the reaction scheme, suggesting that temporary recovery is a multi-step process involving at least two distinct subreactions. The dependence of temporary recovery on the minority charge carrier density was found to follow a power law with an exponent around <span><math><mrow><msub><mi>x</mi><mtext>BA</mtext></msub><mo>=</mo><mn>1.9</mn></mrow></math></span>. For degradation and regeneration, we derive activation energies close to <span><math><mrow><mn>0.8</mn><mspace></mspace><mtext>eV</mtext></mrow></math></span>. This similarity of the temperature dependence is consistent with a recently proposed atomistic model, where both degradation and regeneration occur by atomic hydrogen binding to another complex.</div><div>In total, we have provided all kinetic parameters required for describing LeTID in gallium-doped silicon with the well-known three-state model. Our findings thereby not only enhance the understanding of the underlying processes involved in LeTID, but also enable the precise modelling of the degradation rate and extent. These results lay the groundwork for complex outdoor yield models that incorporate weather data.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113854"},"PeriodicalIF":6.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711373","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}
Kaiwen Lin , Changjun Wu , Xin Wang , Guanyu Hua , Qinran Chen , Siyi Yan , Xiaofu Kuang , Hao Liu , Yuehui Wang
{"title":"Truxene-based multisite-polymerized electrochromic polymers: Multicolor variation, excellent cycling stability, and flexible devices","authors":"Kaiwen Lin , Changjun Wu , Xin Wang , Guanyu Hua , Qinran Chen , Siyi Yan , Xiaofu Kuang , Hao Liu , Yuehui Wang","doi":"10.1016/j.solmat.2025.113871","DOIUrl":"10.1016/j.solmat.2025.113871","url":null,"abstract":"<div><div>In this study, two solution-processable electrochromic polymers (ECPs), PTr-EDOT and PTr-ProDOT, were synthesized via multi-site direct arylation polymerization (DArP) based on truxene and EDOT derivatives. Comprehensive characterization of their optical, electrochemical, morphological, and electrochromic properties was conducted. PTr-EDOT exhibited stable dynamic multicolor switching among yellow, green, blue, and violet, maintaining 90 % of its optical contrast after 100 cycles. In contrast, PTr-ProDOT, modified with alkoxy side chains, showed enhanced solubility, a reduced bandgap (1.36 eV), and a low onset oxidation potential (0.16 V). Its porous film morphology enabled rapid redox switching (1.9 s/1.0 s) with a high optical contrast of 29 % and excellent cycling stability (100 % retention after 100 cycles). These results demonstrate a viable design strategy for high-performance ECPs by combining a conjugated planar core with side-chain engineering to balance solubility, charge transport, and ion mobility. This work provides a promising framework for developing multicolor, low-energy, and durable electrochromic materials for advanced optoelectronic applications.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113871"},"PeriodicalIF":6.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711409","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}
Ruishuo Guo , Huijia Wang , Qingwen Wen , Xin Xu , Yanlan Zhou , Xiaoqiang Shao , Ni Li
{"title":"Controlled synthesis and thermal management studies of SiO2@n-Octadecane phase change nanocapsules","authors":"Ruishuo Guo , Huijia Wang , Qingwen Wen , Xin Xu , Yanlan Zhou , Xiaoqiang Shao , Ni Li","doi":"10.1016/j.solmat.2025.113865","DOIUrl":"10.1016/j.solmat.2025.113865","url":null,"abstract":"<div><div>Phase change capsules effectively address the limitations of leakage and poor stability of phase change materials (PCMs). In this study, SiO<sub>2</sub>@n-Octadecane phase change nanocapsules (PCNCs) with controllable size and structure are prepared by controlling material ratios. When Water-to-EtOH ratio is 2:1 and C<sub>18</sub>-to-TEOS ratio is 3:3 in the reaction system, prepared PCNCs show excellent phase change enthalpy of 152.9 J/g and high encapsulation ratio of 73.77 %, with desirable thermal stability and reliability. After the irradiation of simulating sunlight for 1500 s, the PCNCs achieved a temperature buffer of 6 °C compared with blank cotton fabric, and the cotton fabric with the PU coating containing the PCNCs presents up to 13.2 °C temperature reduction compared with original cotton fabric. The prepared SiO<sub>2</sub>@n-Octadecane PCNCs present excellent heat storage and thermal management performance and effective strategy to develop long-term thermal comfort smart textiles.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113865"},"PeriodicalIF":6.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711516","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}
Mohamed Benghanem , Mohammed El Hadi Attia , Mohamed Abdelgaied , K. Harby , Badr H. Bedairi
{"title":"Enhancing conical solar still performance using black dyed/beige eggshell powder as natural energy storage materials (bio-energy source): experimental approach and 4E evaluation","authors":"Mohamed Benghanem , Mohammed El Hadi Attia , Mohamed Abdelgaied , K. Harby , Badr H. Bedairi","doi":"10.1016/j.solmat.2025.113869","DOIUrl":"10.1016/j.solmat.2025.113869","url":null,"abstract":"<div><div>The present study aims to use safe, available, and inexpensive thermal storage materials that can be integrated with conical solar stills to increase water production, add some important elements to the produced water, reduce production costs, and ensure environmental sustainability. This was done by incorporating the eggshell powder into the basins of the conical solar stills. The eggshell powder is characterized by natural, cost-free, effective, and safe thermal energy storage material, which is also an important element for human health. The color of the eggshell powder used in our study is beige, and to increase its ability to absorb solar radiation, it was dyed black. To illustrate the influences of the beige/black dyed eggshell powder on the performance of conical solar stills. A comparative experimental study was conducted by designing, fabricating, and testing a simple conical solar still (SCSS) as a reference unit, a conical solar still with eggshell powder beige (CSS-ESP&Be), and a conical solar still with eggshell powder black (CSS-ESP&Bl). The results showed that adding eggshell powder black (CSS-ESP&Bl) achieved the highest daily cumulative yield of 8.69 L/m<sup>2</sup> day, representing a 102.1 % improvement compared to SCSS, which had a yield of 4.3 L/m<sup>2</sup> day. Economically, the eggshell powder black (CSS-ESP&Bl) helps 50.52 % (0.005 vs. 0.0101 $/liter) reduction in water production cost compared to SCSS. Also, environmentally, the use of eggshell powder black (CSS-ESP&Bl) achieved the net mitigation of CO<sub>2</sub> of 36.17 tons. Moreover, carbon credits gained a yield of 524.42 $, achieved a 102 % improvement compared to SCSS.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113869"},"PeriodicalIF":6.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711379","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}
Wenyuan Liu , Hao Liu , Zhoufu Wang , Honghong Wang , Yan Ma , Zhenghuang Quan , Xitang Wang
{"title":"Novel forsterite/chloride salts composite materials with high energy storage density for high temperature thermal energy storage","authors":"Wenyuan Liu , Hao Liu , Zhoufu Wang , Honghong Wang , Yan Ma , Zhenghuang Quan , Xitang Wang","doi":"10.1016/j.solmat.2025.113868","DOIUrl":"10.1016/j.solmat.2025.113868","url":null,"abstract":"<div><div>Composite phase change materials are particularly valuable for high temperature thermal energy storage and waste heat recovery, but the poor energy storage density and thermal conductivity limit their practical applications. Herein, this study proposed a concurrent enhancement of composite materials by utilizing SiO<sub>2</sub> nanoparticles-decorated KCl-NaCl as phase change materials and forsterite with high specific heat as matrix materials. The results showed that forsterite and chloride salts exhibited excellent chemical compatibility, and the appropriate content of chloride salts and suitable molding pressure were beneficial to enhancing the densification of composite materials while increasing their thermal and mechanical properties. Specifically, the composite materials with chloride salts content of 60 wt% and molding pressure of 40 MPa demonstrated the best performance, with an energy storage density of 901.7 J/g (100–800 °C), a latent heat of 180.5 J/g, thermal conductivity of 0.78–1.47 W/(m·K) at 100–500 °C, and a compressive strength of 41.5 MPa. Notably, the addition of 1.0 wt% SiO<sub>2</sub> nanoparticles resulted in the formation of needle-like nanostructures, which enhanced the thermal conductivity and energy storage density of composite materials. The composite materials exhibited good chemical stability after 500 thermal cycles, accompanied by an enhancement in thermal conductivity due to the formation of middle layer between forsterite and chloride salts. This suggests a promising potential for composite materials in thermal energy storage applications.</div></div>","PeriodicalId":429,"journal":{"name":"Solar Energy Materials and Solar Cells","volume":"293 ","pages":"Article 113868"},"PeriodicalIF":6.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713401","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}