Solar RRL最新文献_第9页

Electron Selective Passivation Contact of Hydrogenated Titanium Nitride for Crystalline Silicon Solar Cells 晶体硅太阳能电池中氢化氮化钛的电子选择性钝化接触

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-17 DOI: 10.1002/solr.202500962

Yu Yan, Zhiyuan Xu, Wei Li, Xuejiao Wang, Bike Zhang, Huizhi Ren, Xinliang Chen, Yi Ding, Jian He, Qian Huang, Xiaodan Zhang, Ying Zhao, Guofu Hou

{"title":"Electron Selective Passivation Contact of Hydrogenated Titanium Nitride for Crystalline Silicon Solar Cells","authors":"Yu Yan, Zhiyuan Xu, Wei Li, Xuejiao Wang, Bike Zhang, Huizhi Ren, Xinliang Chen, Yi Ding, Jian He, Qian Huang, Xiaodan Zhang, Ying Zhao, Guofu Hou","doi":"10.1002/solr.202500962","DOIUrl":"https://doi.org/10.1002/solr.202500962","url":null,"abstract":"Dopant-free electron-selective contact materials with hydrogen passivation are crucial for electronic extraction applications for crystalline silicon (c-Si) cells. However, research on these materials, particularly transition metal nitrides, is limited. In this work, we investigate a titanium nitride (TiN)/SiOx stack placed between c-Si and metal electrode, examining how hydrogen passivate affect the interfacial contacts. Three methods were investigated: (1) using Ar/H2(95%/5%) as the working gas during TiN deposition; (2) pure Ar during TiN deposition followed by postannealing at 250°C for 30 min; and (3) Ar/H2 during deposition, followed by postannealing. A control group without hydrogenation is also included. The best performance, with a contact resistivity of 1.48 mΩ·cm2 and an open-circuit voltage of 674.4 mV, result in a champion power conversion efficiency of 22.4% as the dopant-free electron-selective contact material. This work highlights the sensitivity of transition metal nitrides, such as TiN, to hydrogenation under natural oxidizing conditions and emphasized the critical role of postannealing processes and material compatibility.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 4","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147280070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microconcentrator Solar Panel Architectures Achieving High Specific Power for Deep Space Missions 为深空任务实现高比功率的微聚光太阳能电池板架构

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-15 DOI: 10.1002/solr.202500758

Guido Vallerotto, Anderson Bermudez-Garcia, Gerald Siefer, Maike Wiesenfarth, Almudena Garcia-Sanchez, Ignacio Antón, Carsten Baur, Pier Luigi Coz, César Domínguez

{"title":"Microconcentrator Solar Panel Architectures Achieving High Specific Power for Deep Space Missions","authors":"Guido Vallerotto, Anderson Bermudez-Garcia, Gerald Siefer, Maike Wiesenfarth, Almudena Garcia-Sanchez, Ignacio Antón, Carsten Baur, Pier Luigi Coz, César Domínguez","doi":"10.1002/solr.202500758","DOIUrl":"https://doi.org/10.1002/solr.202500758","url":null,"abstract":"Microconcentrator photovoltaics (microCPV) are emerging as a promising solution for powering spacecraft in deep space, where conventional solar arrays are challenged by extremely low-intensity, low-temperature conditions. This work presents the design, development, and characterization of two optical architectures aiming at maximizing specific power (W/kg) beyond Mars orbit: (i) a Fresnel microlens array fabricated with silicone-on-glass (SoG) technology, and (ii) a catadioptric concentrator combining refraction and total internal reflection. Triple-junction (3J) and four-junction (4J) microcells were experimentally tested at cryogenic temperatures down to –175°C and irradiance levels representative of Jupiter and Saturn orbits, confirming that voltage recovery at low temperature partially compensates photocurrent losses, thereby validating the use of sub-mm cells under LILT conditions. Ray-tracing simulations show that the Fresnel architecture achieves higher optical efficiency and lower mass, while the catadioptric system provides greater angular tolerance and alignment robustness. The first Fresnel prototypes were successfully manufactured and characterized, showing optical efficiencies of 83%–85% with excellent uniformity across the lens array. A mini-module assembly composed of 72 4-junction microsolar cells showed an electrical efficiency of 25%. These results demonstrate the feasibility of microCPV modules as a high-specific-power alternative to conventional coverglass interconnected cell (CIC) arrays in deep space missions.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 4","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202500758","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic Regulation of Shallow Energy Level-Mediated Carrier Dynamics and Deep Defect Passivation for Enhanced Photocatalytic Hydrogen Evolution Over Zn0.3Cd0.7S/ZnS Quantum Dots Zn0.3Cd0.7S/ZnS量子点上浅能级介导载流子动力学和深度缺陷钝化增强光催化析氢的协同调节

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-15 DOI: 10.1002/solr.202500968

Xiang Liu, Shizhe Cao, Danni Li, Weizi Jiang, Deheng Chen, Wensong Wang, Ying Tian, Shenjie Li, Yanyan Chen

{"title":"Synergistic Regulation of Shallow Energy Level-Mediated Carrier Dynamics and Deep Defect Passivation for Enhanced Photocatalytic Hydrogen Evolution Over Zn0.3Cd0.7S/ZnS Quantum Dots","authors":"Xiang Liu, Shizhe Cao, Danni Li, Weizi Jiang, Deheng Chen, Wensong Wang, Ying Tian, Shenjie Li, Yanyan Chen","doi":"10.1002/solr.202500968","DOIUrl":"10.1002/solr.202500968","url":null,"abstract":"Aiming at the core bottlenecks of severe carrier recombination and disordered migration in quantum dot (QD) photocatalysis, this study proposes a synergistic strategy of “shallow-level defect-mediated carrier temporary storage and heterojunction built-in electric field-directed transport” to boost the photocatalytic hydrogen evolution (PHE) performance of ZnCdS QDs (ZCS QDs). Employing 20-fold excess sulfur, S2− replaces organic ligands to establish surface shallow-level defects (0.26 eV from the conduction band bottom), whose weak electron binding enables temporary carrier storage and suppresses nonradiative recombination. Leveraging these these S2− sites, a 20% coverage ZnS partial shell is grown in situ to form a ZCS@ZnS heterojunction. The bandgap difference (ZCS: 2.56 eV; ZnS: 3.6 eV) induces a built-in electric field, disrupting isotropic carrier migration and driving shallow-level-stored electrons to ZnS surface active sites for H2 evolution. The optimized Zn0.3Cd0.7S/20%ZnS (SR) exhibits a PHE rate of 51.65 mmol·g−1·h−1 (25 times higher than pristine Zn0.3Cd0.7S) with approximately 80% retention after 5 cycles. This work addresses the “storage-directed migration” tradeoff of carriers via defect level regulation and interface electric field design, providing a universal approach to optimize the photocatalytic performance of chalcogenide semiconductor QDs.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ambient-Air Fabrication of Efficient and Stable Perovskite Solar Cells via Ionic Liquid–Assisted Laser Shock Annealing 离子液体辅助激光冲击退火法制备高效稳定的钙钛矿太阳能电池

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-15 DOI: 10.1002/solr.202500964

Ming Peng, Liangyou Lin, Qidong Tai, Feng Liu, Gary J. Cheng

{"title":"Ambient-Air Fabrication of Efficient and Stable Perovskite Solar Cells via Ionic Liquid–Assisted Laser Shock Annealing","authors":"Ming Peng, Liangyou Lin, Qidong Tai, Feng Liu, Gary J. Cheng","doi":"10.1002/solr.202500964","DOIUrl":"10.1002/solr.202500964","url":null,"abstract":"The commercialization of formamidinium-based perovskite solar cells (PSCs), despite their certified power conversion efficiencies exceeding 27%, is significantly hindered by their intrinsic phase instability under ambient conditions, particularly in high humidity. Developing fabrication protocols that can directly produce high-performance devices in air is therefore a critical research objective. Current strategies often struggle to simultaneously control crystallization kinetics and prevent environmental degradation during processing. In this work, we address this challenge through a synergistic materials and processing approach. We incorporate the hydrophobic ionic liquid BMIMPF6 into the perovskite precursor and employ laser shock annealing to enable fabrication in high-humidity air (~70% RH). The BMIMPF6 additive functions by modifying crystallization kinetics and passivating defects during the film formation. The subsequent laser shock annealing induces rapid microstructural densification. This combined processing results in a pinhole-free morphology with improved crystalline order and embedded ionic liquid molecules within the lattice. As a result, the champion devices (with PEAI) fabricated entirely in ambient air achieved a power conversion efficiency of 23.50% with negligible hysteresis and exhibited exceptional stability, maintaining 100% of their initial efficiency throughout 700 h of continuous operation, thereby validating the robustness of this approach for ambient-air production of high-performance PSCs.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202500964","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146217263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple Synergistic Mechanisms of Urea in Vacuum-Assisted Prepared Triple-Cation Perovskite Solar Cells 尿素在真空辅助制备三阳离子钙钛矿太阳能电池中的多重协同机制

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-15 DOI: 10.1002/solr.202500906

Ziyue Rao, Bangqi Jiang, Yugeng Hao, Wen Yang, Ruijiang Hong

引用次数: 0

Perovskite Solar Cells Designed With Low-Toxicity Solvents for Environmental Sustainability 低毒性溶剂钙钛矿太阳能电池的环境可持续性

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-08 DOI: 10.1002/solr.202500866

Ammarah Razzaq, Dilpreet Singh Mann, Sakshi Thakur, Kwang-Un Jeong, Sung-Nam Kwon, Seok-In Na

{"title":"Perovskite Solar Cells Designed With Low-Toxicity Solvents for Environmental Sustainability","authors":"Ammarah Razzaq, Dilpreet Singh Mann, Sakshi Thakur, Kwang-Un Jeong, Sung-Nam Kwon, Seok-In Na","doi":"10.1002/solr.202500866","DOIUrl":"10.1002/solr.202500866","url":null,"abstract":"As perovskite solar cells (PSCs) are approaching commercial mass production, the development of environmentally sustainable manufacturing processes is becoming a priority. Herein, we report the design and fabrication of inverted (p–i–n) PSCs utilizing a fully low-toxicity solvent system. We successfully replaced conventional toxic solvents, such as N, N-dimethylformamide (DMF) and dichlorobenzene (DCB), with safer alternatives for all functional layers. The perovskite precursor was formulated by replacing the conventional DMF with a binary solvent system utilizing 1,3-dimethyl-2-imidazolidinone (DMI) as a key cosolvent. Through process optimization and analyses, it was confirmed that adjusting the DMI:dimethyl sulfoxide (DMSO) ratio to 50:50 effectively suppressed pinhole formation and enabled the formation of a perovskite film with high uniformity and crystallinity. Furthermore, the use of anisole in the electron transport layer deposition has proven to be a suitable alternative to the DCB, enabling the suppression of nonradiative recombination losses while maintaining efficient charge extraction. The resulting device, processed with low-toxicity solvents, achieved a maximum power conversion efficiency (PCE) of 17.17% with long-term stability, retaining over 88.7% of its initial PCE after 580 h. These findings demonstrate the feasibility of a low-toxicity solvent-based approach and suggest an environmentally sustainable route toward the commercialization of high-performance PSCs.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146215897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Industrial Production of Perovskite–Silicon Tandem Solar Cells: The Characterization Challenge 钙钛矿-硅串联太阳能电池的工业生产：表征挑战

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-08 DOI: 10.1002/solr.202500766

Martin C. Schubert, David Chojniak, Salar H. Sedani, Christoph Messmer, Johannes M. Greulich, Jonas Haunschild, S. Kasimir Reichmuth, Alexander J. Bett, Oliver Fischer, Florian Schindler, Jonas Schön, Jochen Hohl-Ebinger, Stefan Rein, Stefan W. Glunz, Christopher Berge, Marc Hemsendorf, Bernhard Mitchell, Lukas Ziegler, Klaus Ramspeck, Jonas Horn, Ivanol Djeukeu

{"title":"Industrial Production of Perovskite–Silicon Tandem Solar Cells: The Characterization Challenge","authors":"Martin C. Schubert, David Chojniak, Salar H. Sedani, Christoph Messmer, Johannes M. Greulich, Jonas Haunschild, S. Kasimir Reichmuth, Alexander J. Bett, Oliver Fischer, Florian Schindler, Jonas Schön, Jochen Hohl-Ebinger, Stefan Rein, Stefan W. Glunz, Christopher Berge, Marc Hemsendorf, Bernhard Mitchell, Lukas Ziegler, Klaus Ramspeck, Jonas Horn, Ivanol Djeukeu","doi":"10.1002/solr.202500766","DOIUrl":"10.1002/solr.202500766","url":null,"abstract":"Characterization of perovskite–silicon (Pero/Si) tandem solar cells in an industrial environment is hampered by several challenges. First, the monolithic series connection of the two subcells and the fact that the entire stack shares only two electrical terminals make it impossible to probe each subcell independently. Second, the perovskite absorber's metastability—most notably ion migration—introduces additional, often slow, time-dependent effects. Together with the industry's requirement for high throughput, these factors complicate accurate, high-speed characterization. In this work we propose a concept to acquire I–V data for tandem solar cells from light-emitting diode (LED)-based solar simulators, where we acquire an approximation of the external quantum efficiency from LED-based measurements before conducting an I–V measurement with an adjusted LED illumination spectrum. We present results on a reference III/V and different Pero/Si solar cells. We model ion migration in perovskite subcells, which allows for assessing preconditioning and transient effects in I–V cell measurements. We recommend a short preconditioning under light to stabilize the scan time dependence and show the potential for transfer between industrial and lab conditions. Finally, we showcase concepts of camera-based luminescence measurements for inline analysis. Specifically, we show a line-scan photoluminescence approach, a fast electroluminescence (EL) imaging approach based on parallel data acquisition with two cameras, and an EL concept based on the application of one RGB camera.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202500766","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determining the Reverse Bias Breakdown Voltage of Perovskite Solar Cells 钙钛矿太阳能电池反向偏压击穿电压的测定

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-05 DOI: 10.1002/solr.202500875

Jonathan Henzel, Klaas Bakker, Sjoerd Veenstra, Olindo Isabella, Luana Mazzarella, Arthur Weeber, Mirjam Theelen

{"title":"Determining the Reverse Bias Breakdown Voltage of Perovskite Solar Cells","authors":"Jonathan Henzel, Klaas Bakker, Sjoerd Veenstra, Olindo Isabella, Luana Mazzarella, Arthur Weeber, Mirjam Theelen","doi":"10.1002/solr.202500875","DOIUrl":"10.1002/solr.202500875","url":null,"abstract":"The degradation of perovskite solar cells due to reverse bias (RB) is one of the remaining challenges hindering the commercialization of the technology. To overcome this challenge, a thorough understanding of and control over the breakdown (BD) voltage are crucial. A prerequisite for this is that the community “speaks the same language,” that is, that the reported BD voltages are comparable. A review of literature data shows that the impact of measurement parameters is often unknown and seems to depend strongly on sample properties. It follows that standardization is the only way to reach comparability. Here, a set of measurement parameters to fill this gap is proposed. Additionally, various definitions of a “BD voltage” are used in parallel without any way of relating them to each other; this metric and its determination need to be considered as well. After a thorough discussion of the available definitions, the use of the point of maximum curvature is introduced. Its main advantage is the possible connection to an analytical description of the BD mechanism. In this way, a starting point for scientists new to the field of RB stability is provided, and the ground for a broader discussion in the community is prepared.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Organic Binders on the Film Morphology of Hydrogen-Terminated Nanodiamonds Used for Electron Extraction in Organic Solar Cells 有机结合剂对有机太阳能电池中电子萃取用端氢纳米金刚石膜形态的影响

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-05 DOI: 10.1002/solr.202500508

Aurelien Sokeng Djoumessi, Zhuo Xu, Chikezie Ugokwe, Daria Miliaieva, Steffi Stumpf, Tanja Deckert-Gaudig, Jan Čermák, Štěpán Stehlík, Volker Deckert, Bohuslav Rezek, Ulrich S. Schubert, Harald Hoppe

{"title":"Effect of Organic Binders on the Film Morphology of Hydrogen-Terminated Nanodiamonds Used for Electron Extraction in Organic Solar Cells","authors":"Aurelien Sokeng Djoumessi, Zhuo Xu, Chikezie Ugokwe, Daria Miliaieva, Steffi Stumpf, Tanja Deckert-Gaudig, Jan Čermák, Štěpán Stehlík, Volker Deckert, Bohuslav Rezek, Ulrich S. Schubert, Harald Hoppe","doi":"10.1002/solr.202500508","DOIUrl":"10.1002/solr.202500508","url":null,"abstract":"Like other carbon nanoparticles, diamond nanoparticles, also known as nanodiamonds (NDs), tend to aggregate when they are dispersed in solution or when they are cast on a substrate. This is mainly due to the versatility of functional groups present on their surface. Previous studies have reported the use of several techniques, including chemical modification, surface active compound usage, and mechanical milling using tiny zirconia beads, for destroying the ND aggregates. Herein, we focus on the deposition of hydrogen-terminated NDs (H-NDs) for use as electron transport layer material in inverted organic solar cells and we investigate different approaches to prevent or to eliminate aggregation during the coating of films of H-NDs, including the reduction of the ND concentration in the dispersions and the blending of H-NDs powder with additives or binders such as styrene-butadiene rubber, carboxymethyl cellulose, a combination of both, fluoride-based polyvinylidene fluoride, and the conjugated polyelectrolyte poly(9,9-bis(3′-(N, N-dimethyl)-N-ethylammonium-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene))dibromide (PFN-Br), in dispersions. The film morphology and more specifically the device's performance and stability were improved in several cases and single nanoparticles of diamonds with small sizes (<20 nm) were observed.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202500508","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Eco-Friendly Universal Strategy via Ribavirin to Achieve Highly Efficient and Stable Perovskite Solar Cells 通过利巴韦林实现高效稳定的钙钛矿太阳能电池的环保通用策略

IF 6 3区工程技术

Solar RRL Pub Date : 2026-02-04 DOI: 10.1002/solr.202500951

Xianhu Wu, Gaojie Xia, Guanglei Cui, Jieyu Bi, Nian Liu, Jiaxin Jiang, Jilong Sun, Luyang Liu, Ping Li, Ning Lu, Zewen Zuo, Min Gu

{"title":"An Eco-Friendly Universal Strategy via Ribavirin to Achieve Highly Efficient and Stable Perovskite Solar Cells","authors":"Xianhu Wu, Gaojie Xia, Guanglei Cui, Jieyu Bi, Nian Liu, Jiaxin Jiang, Jilong Sun, Luyang Liu, Ping Li, Ning Lu, Zewen Zuo, Min Gu","doi":"10.1002/solr.202500951","DOIUrl":"10.1002/solr.202500951","url":null,"abstract":"The grain boundaries of perovskite films prepared by the solution method are highly disordered, with a large number of defects existing at the grain boundaries. These defect sites promote the decomposition of perovskite. Here, we use ribavirin obtained through bacillus subtilis fermentation to regulate the crystal growth of perovskite, inducing changes in the work function and energy level structure of perovskite, which significantly reduces the defect density. Based on density functional theory calculations, the defect formation energies of VI, VMA, VPb, and PbI in perovskite are improved. This increases the open-circuit voltage of perovskite solar cells (PSCs) (ITO/PEDOT:PSS/perovskite/PCBM/BCP/Ag) from 1.077 to 1.151 V, and the power conversion efficiency (PCE) increases significantly from 17.05% to 19.86%. Unencapsulated PSCs were stored in the environment (humidity ≈35 ± 5%) for long-term stability testing. After ≈900 h of storage, the PCE of the ribavirin-based device retains 84.33% of its initial PCE, while the control-based device retains only 13.44% of its initial PCE. The PCE of PSCs (ITO/SnO2/perovskite/Spiro-OMETAD/Ag) is increased from 20.16% to 22.14%, demonstrating the universality of this doping method. This universal doping strategy provides a new approach for improving the efficiency and stability of PSCs using green molecular doping strategies.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"10 3","pages":""},"PeriodicalIF":6.0,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146135947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0