Solar RRL最新文献_第4页

Solution-Processed SnOx as a Hole-Transporting Material for Stable Sn-Based Perovskite Solar Cell 溶液处理SnOx作为稳定锡基钙钛矿太阳能电池的空穴传输材料

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-12 DOI: 10.1002/solr.202500047

Jannatul Ferdous, Md. Emrul Kayesh, Wipakorn Jevasuwan, Naoki Fukata, Ashraful Islam

{"title":"Solution-Processed SnOx as a Hole-Transporting Material for Stable Sn-Based Perovskite Solar Cell","authors":"Jannatul Ferdous, Md. Emrul Kayesh, Wipakorn Jevasuwan, Naoki Fukata, Ashraful Islam","doi":"10.1002/solr.202500047","DOIUrl":"https://doi.org/10.1002/solr.202500047","url":null,"abstract":"Sn-perovskites are considered a suitable alternative to toxic Pb-perovskites due to their low toxicity and optimum optoelectronic properties. However, high-efficiency Sn-based perovskite solar cells (Sn-PSCs) typically use poly (3,4-ethylenedioxythiophene):polystyrene sulfonic acid (PEDOT:PSS) as a hole-transporting material (HTM), which limits their stability due to its acidic nature. This study introduces SnOX nanocrystals, synthesized through a synproportionation reaction of Sn4+ with Sn0 under mild conditions, as a replacement for PEDOT:PSS. X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy analyses revealed that the Sn0 reduces Sn4+ by 38% and elevates the highest occupied molecular orbital to –5.70 eV, close to PEDOT:PSS, enabling HTM behavior. The perovskite films on SnOX exhibit improved grain size and crystallinity compared to PEDOT:PSS. The resulting SnOX-based Sn-PSCs achieved a power conversion efficiency of 11.11%. They retained 90% of their efficiency after 1000 h of maximum power point tracking, indicating superior stability over PEDOT:PSS-based devices.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202500047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762252","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

Solvent-Tailored Carbon Paste for Effective Carbon-Based Perovskite Solar Cells 高效碳基钙钛矿太阳能电池的溶剂定制碳浆料

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-11 DOI: 10.1002/solr.202400910

Atittaya Naikaew, Supavidh Burimart, Ladda Srathongsian, Chaowaphat Seriwattanachai, Patawee Sakata, Kanokwan Choodam, Kittikhun Khotmungkhun, Waroot Kanlayakan, Pimsuda Pansa-Ngat, Ko Ko Shin Thant, Thanawat Kanlayapattamapong, Pipat Ruankham, Hideki Nakajima, Ratchadaporn Supruangnet, Pongsakorn Kanjanaboos

{"title":"Solvent-Tailored Carbon Paste for Effective Carbon-Based Perovskite Solar Cells","authors":"Atittaya Naikaew, Supavidh Burimart, Ladda Srathongsian, Chaowaphat Seriwattanachai, Patawee Sakata, Kanokwan Choodam, Kittikhun Khotmungkhun, Waroot Kanlayakan, Pimsuda Pansa-Ngat, Ko Ko Shin Thant, Thanawat Kanlayapattamapong, Pipat Ruankham, Hideki Nakajima, Ratchadaporn Supruangnet, Pongsakorn Kanjanaboos","doi":"10.1002/solr.202400910","DOIUrl":"https://doi.org/10.1002/solr.202400910","url":null,"abstract":"Printable planar carbon electrodes present a cost-effective and highly promising alternative to thermally evaporated metals, serving as the rear contact for stable perovskite solar cells (PSCs). However, the power conversion efficiencies (PCEs) of the carbon-based PSCs (C-PSCs) are notably lower compared to those of state-of-the-art PSCs. The inferior contact between the carbon electrode and the underlying layer contributes to the performance loss. Here, we developed scalable doctor-bladed carbon electrode by simultaneously incorporating 4 wt% carbon black and utilizing toluene (TLE) solvent engineering to a commercial carbon paste, resulting in improved flexibility and conductivity while yielding reduction of resistivity by 50% measured via a 4-point probe. Consequently, the carbon sheet can efficiently adhere the underlying hole-transporting layer by a simple pressing technique, significantly boosting charge transfer across the interface. The TLE device achieves a champion PCE of 15.77% with an ultralow hysteresis index (HI) of 0.027, compared to the solvent-free device which has a HI of 0.176. The developed carbon-based device exhibits notably improved long-term stability when subjected to dark conditions and 40-50% RH, sustaining 82% of its initial efficiency after 24 days without encapsulation with minimal declines in Jsc and Voc.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 8","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400910","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865525","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

Facile and Low-Cost Design Alternative of Spiro-OMeTAD as p-Type Semiconductor for Efficient Perovskite Solar Cells 高效钙钛矿太阳能电池中用作p型半导体的Spiro-OMeTAD的简单低成本设计选择

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-10 DOI: 10.1002/solr.202500034

Sarune Daskeviciute, Yi Zhang, Maryte Daskeviciene, Kasparas Rakstys, Julius Petrulevicius, Vygintas Jankauskas, Vytautas Getautis, Mohammad Khaja Nazeeruddin

引用次数: 0

Decoration of Two-Dimensional Cus Nanoflakes on Graphitic Carbon Foam Derived from Waste Plastic for Interfacial Solar Desalination 二维cu纳米片在废塑料石墨碳泡沫表面的修饰及其界面太阳能脱盐研究

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-10 DOI: 10.1002/solr.202400777

Muzammil Hussain, Anastasiia Taranova, Kassa Belay Ibrahim, Alessandro Gradone, Enrique Rodríguez-Castellón, Silvia Gross, Vittorio Morandi, Elisa Moretti, Alberto Vomiero, Tofik Ahmed Shifa

{"title":"Decoration of Two-Dimensional Cus Nanoflakes on Graphitic Carbon Foam Derived from Waste Plastic for Interfacial Solar Desalination","authors":"Muzammil Hussain, Anastasiia Taranova, Kassa Belay Ibrahim, Alessandro Gradone, Enrique Rodríguez-Castellón, Silvia Gross, Vittorio Morandi, Elisa Moretti, Alberto Vomiero, Tofik Ahmed Shifa","doi":"10.1002/solr.202400777","DOIUrl":"https://doi.org/10.1002/solr.202400777","url":null,"abstract":"Interfacial solar desalination using plasmonic metal semiconductors is a valuable process for freshwater production. However, the design of a sustainable and efficient photothermal evaporator is still challenging. In the present research, polyethylene terephthalate waste bottles were upcycled into carbon foam (CF) and further functionalized with CuS nanoflakes as a photothermal layer. Analytical characterizations (X-ray diffraction, Fourier transform infrared spectroscopy, Scanning electron microscopy, and scanning transmission electron microscopy–high-angle annular dark field) demonstrated the successful decoration of two-dimensional Covellite CuS nanoflakes on graphitic CF having microporous channels. UV/vis spectroscopy measurements show enhanced optical absorption with CuS/CF of up to 95% compared to bare CF (72%). The photothermal desalination experiment displayed an improved evaporation rate of 1.90 kg m−2 h−1 for the CuS–CF compared to 1.58 kg m−2 h−1 for the bare CF and CuS 1.41 kg m−2 h1, reveling the excellent water evaporation efficiency of 91%. The obtained results suggested that the design of CuS-functionalized CF derived from waste plastic for solar desalination is a useful strategy to produce fresh water from the upcycling of waste materials and a good example of circular economy through the development of engineered composite systems.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762296","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

Next-Generation Solar-Powering: Photonic Strategies for Earth and Space Systems 下一代太阳能发电：地球和空间系统的光子策略

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-09 DOI: 10.1002/solr.202400666

Ivan M. Santos, Miguel Alexandre, António T. Vicente, Cristina Teixeira, Eva Almeida, Elvira Fortunato, Rodrigo Martins, Hugo Águas, Manuel J. Mendes

{"title":"Next-Generation Solar-Powering: Photonic Strategies for Earth and Space Systems","authors":"Ivan M. Santos, Miguel Alexandre, António T. Vicente, Cristina Teixeira, Eva Almeida, Elvira Fortunato, Rodrigo Martins, Hugo Águas, Manuel J. Mendes","doi":"10.1002/solr.202400666","DOIUrl":"https://doi.org/10.1002/solr.202400666","url":null,"abstract":"Escalating environmental and energy supply concerns, coupled with an increasing interest in space exploration, are driving the development of advanced energy harvesting systems and the adoption of cutting-edge photovoltaic (PV) technologies. Photonics allows precise light manipulation in a multitude of ways, empowering PV with the means to tackle the multifaceted challenges inherent to the harsh space environment, with great potential to concomitantly spin off to on-Earth systems, prioritizing efficiency and reliability. This review thus synthesizes the key insights from the latest experimental and simulation R&D outcomes to inform the design and implementation of advanced photonic strategies for various PV applications. The state-of-the-art performance and foreground of photonic-managed thick- (single-junction crystalline silicon, c-Si, and perovskite-on-silicon tandem) and thin-film (hydrogenated amorphous silicon, a-Si:H, and perovskite) PV devices are assessed by comparison with theoretical ideal light-trapping scenarios (single-, double-pass, and Lambertian absorption models), looking also at the potential of photonic coolers as an emergent platform for effective thermal management. Finally, this work examines novel photonic approaches for spectrum modification, emphasizing the relevance of illumination-tailoring for outer space systems.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400666","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761947","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

Achieving High-Quality Wide Bandgap Perovskite Thin Films via Regulating the Halide Ion Exchange Order in Vapor-Solid Reaction 通过调节气固反应中卤化物离子交换顺序制备高质量宽禁带钙钛矿薄膜

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-09 DOI: 10.1002/solr.202500053

Wenjuan Xiong, Shenghan Hu, Yuanbo Song, Yichen Dou, Jiace Liang, Zhangwei Yuan, Xinyu Deng, Meichen Liu, Mengjun Liu, Ziyue Qiang, Zhiliang Ku

{"title":"Achieving High-Quality Wide Bandgap Perovskite Thin Films via Regulating the Halide Ion Exchange Order in Vapor-Solid Reaction","authors":"Wenjuan Xiong, Shenghan Hu, Yuanbo Song, Yichen Dou, Jiace Liang, Zhangwei Yuan, Xinyu Deng, Meichen Liu, Mengjun Liu, Ziyue Qiang, Zhiliang Ku","doi":"10.1002/solr.202500053","DOIUrl":"https://doi.org/10.1002/solr.202500053","url":null,"abstract":"Wide-bandgap (WBG) perovskite films are vital for advancing high-efficiency silicon/perovskite tandem technology. However, the performance of WBG perovskite films produced using vapor deposition techniques often lags behind that of solution-based methods due to challenges in accurately controlling the halide ions and crystallization quality, particularly the Br/I ratio in vapor-deposited perovskite films. In this study, we investigated the halide ion exchange (IE) process in vapor-solid reaction and developed two methods for producing CsFAPbIxBr3−x WBG perovskite thin films: one involved reacting CsFAPbI3 in FABr vapor (I-based IE perovskite), while the other used CsFAPbBr3 in FAI vapor (Br-based IE perovskite). Our findings demonstrate that the Br-based IE perovskite exhibits superior crystallization quality and lower defect density throughout the ion exchange process. As a result, this approach has facilitated the development of WBG perovskite solar cells with a maximum power conversion efficiency of 19.51%. Additionally, unencapsulated devices were able to retain 88.9% of their initial efficiency after being stored for 1500 hr under atmospheric conditions (25°C, 18 ± 5% RH). This research provides a novel strategy and methodology for fabricating high-performance WBG perovskite solar cell via vapor-based techniques, which is crucial for the industrialization of both perovskite solar cells and silicon/perovskite tandem solar cells.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 9","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143909455","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

Loss Analysis of Halide-Perovskite Solar Cells Deposited on Textured Substrates 卤化物-钙钛矿太阳能电池在纹理衬底上沉积的损耗分析

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-06 DOI: 10.1002/solr.202400829

Yueming Wang, Jürgen Hüpkes, Sandheep Ravishankar, Benjamin Klingebiel, Thomas Kirchartz

{"title":"Loss Analysis of Halide-Perovskite Solar Cells Deposited on Textured Substrates","authors":"Yueming Wang, Jürgen Hüpkes, Sandheep Ravishankar, Benjamin Klingebiel, Thomas Kirchartz","doi":"10.1002/solr.202400829","DOIUrl":"https://doi.org/10.1002/solr.202400829","url":null,"abstract":"\u0000To create efficient perovskite–silicon tandem cells with small pyramidal structures, it is crucial to deposit high-quality wide-bandgap perovskite films on textured surfaces. To attain this objective, it is essential to comprehensively understand the characteristics of perovskite films on textured surfaces and their impact on the efficiency loss mechanisms of perovskite solar cells. We find that the textured substrates provide better absorptance of the perovskite films, thus reducing the efficiency losses resulting from the reflected or transmitted light. The short-circuit current of textured devices reaches 95% of the Shockley–Queisser limit at 1.68 eV. In addition, the fill factor losses are not obviously influenced by the textured bottom surface of the perovskite films. Furthermore, transient photoluminescence was used to quantify the recombination losses at open circuit in layer stacks and full devices, offering insights into the surface recombination velocity at the perovskite/electron transport layer interface and capacitive discharge of the electrodes.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/solr.202400829","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761930","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

Surface Sulfuration of Atomic Layer Deposited Snox for Enhanced Performance of n–i–P Perovskite Solar Cells 原子层沉积Snox的表面硫化对n-i-P钙钛矿太阳能电池性能的提高

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-06 DOI: 10.1002/solr.202400879

Jun Wu, Zhiqin Ying, Xin Li, Meili Zhang, Xuchao Guo, Linhui Liu, Yihan Sun, Haofan Ma, Yunyun Yu, Ziyu He, Yuheng Zeng, Xi Yang, Jichun Ye

{"title":"Surface Sulfuration of Atomic Layer Deposited Snox for Enhanced Performance of n–i–P Perovskite Solar Cells","authors":"Jun Wu, Zhiqin Ying, Xin Li, Meili Zhang, Xuchao Guo, Linhui Liu, Yihan Sun, Haofan Ma, Yunyun Yu, Ziyu He, Yuheng Zeng, Xi Yang, Jichun Ye","doi":"10.1002/solr.202400879","DOIUrl":"https://doi.org/10.1002/solr.202400879","url":null,"abstract":"Perovskite/silicon tandem solar cells hold great promise for achieving high power conversion efficiencies (PCEs). However, n–i–p tandem devices generally underperform compared to p–i–n configurations, largely due to difficulties in depositing high-quality, conformal electron-transport layers (ETLs) on rough, pyramid-structured silicon surfaces. Atomic layer deposited (ALD)-SnOx is well suited as an ETL for tandem devices due to its ability to uniformly coat textured surfaces, but its high density of defects significantly limits efficiency compared to conventional solution-processed SnOx. In this study, an ultrathin evaporated PbS layer is introduced to passivate surface defects in ALD-SnOx. PbS effectively addresses interfacial defects at the SnOx/perovskite interface, such as oxygen vacancies and uncoordinated Pb2+. Moreover, PbS improves energy-level alignment and lattice matching at the interface, enhancing device performance. With this bridging effect of PbS, a wide-bandgap (1.68 eV) n–i–p single-junction perovskite solar cell achieved a PCE of 20.39% and an open-circuit voltage (VOC) of 1.22 V, compared to a control device with a PCE of 17.42% and a VOC of 1.16 V.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761929","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

Enhancing Vertical Orientation via Self-Assembled Molecule Interlayer Enables Efficient Ruddlesden–Popper Perovskite Solar Cells 通过自组装分子间层增强垂直定向使高效的Ruddlesden-Popper钙钛矿太阳能电池成为可能

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-05 DOI: 10.1002/solr.202400906

Aili Wang, Shuxian Chen, Kaihuai Du, Zhimin Fang, Luozheng Zhang, Lvzhou Li, Xu Dong, Ningyi Yuan, Jianning Ding

{"title":"Enhancing Vertical Orientation via Self-Assembled Molecule Interlayer Enables Efficient Ruddlesden–Popper Perovskite Solar Cells","authors":"Aili Wang, Shuxian Chen, Kaihuai Du, Zhimin Fang, Luozheng Zhang, Lvzhou Li, Xu Dong, Ningyi Yuan, Jianning Ding","doi":"10.1002/solr.202400906","DOIUrl":"https://doi.org/10.1002/solr.202400906","url":null,"abstract":"The typical anisotropic crystal orientation in Ruddlesden–Popper perovskites (RPPs) is not conducive to carrier transport, resulting in a reduced power conversion efficiency (PCE) compared to three-dimensional perovskites. Here, we present a novel method for manipulating the crystal orientation by introducing a self-assembled molecular layer, MeO-2PACz ([2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl] phosphonic acid), as an interlayer between PTAA (poly[bis(4-phenyl)(2,4, 6-trimethylphenyl) amine]) and the perovskite. The phosphate group of MeO-2PACz bonds with Pb2+ in the RPP, promoting the vertical orientation formation of the perovskite and facilitating efficient charge transport within the RPP materials. Additionally, the grain size is increased, and grain boundary defects are passivated, which contributes to suppressed nonradiative recombination of carriers. The interlayer incorporation of significantly improves the PCE of the optimized device to 17.80%, compared to the device without MeO-2PACz, which has an efficiency of approximately 15.68%. This presents the highest efficiency for an MA-based RP perovskite solar cell (PSC) utilizing 4FPEA (4-fluoro-phenethylammonium) as the spacer cation. Furthermore, the unencapsulated devices demonstrate superior thermal stability. This proposed optimization offers new insights into the manipulation of RPP crystal growth orientation.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762110","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

Enhancing Efficiency and Stability of Perovskite Solar Cells through Synergistic Guanidine–Oxysalt-Mediated Surface Engineering 通过协同胍-氧盐介导的表面工程提高钙钛矿太阳能电池的效率和稳定性

IF 6 3区工程技术

Solar RRL Pub Date : 2025-03-05 DOI: 10.1002/solr.202400903

Sakshi Thakur, Dilpreet Singh Mann, Sushil Shivaji Sangale, Sung-Nam Kwon, Seok-In Na

{"title":"Enhancing Efficiency and Stability of Perovskite Solar Cells through Synergistic Guanidine–Oxysalt-Mediated Surface Engineering","authors":"Sakshi Thakur, Dilpreet Singh Mann, Sushil Shivaji Sangale, Sung-Nam Kwon, Seok-In Na","doi":"10.1002/solr.202400903","DOIUrl":"https://doi.org/10.1002/solr.202400903","url":null,"abstract":"Three-dimensional organic–inorganic perovskite solar cells show continuous improvement in power conversion efficiency. However, the defects present on the perovskite surface affect the device performance and long-term stability. In this study, we introduced N-(2-phenoxyethyl) guanidine nitrate salt (NPEGN) as a surface passivator to effectively engineer surface defects and reduce nonradiative recombination at the interface. The NPEGN introduction on the perovskite surface results in large grains with fewer grain boundaries, leading to the formation of low-dimensional 2D phase on the perovskite surface. Furthermore, NPEGN treatment passivates defects through ionic and hydrogen bonding with perovskite and inhibits perovskite degradation by preventing ion migration. Additionally, improved energy-level alignment at the perovskite/electron transport layer interface enhances charge transport capacity and reduces charge recombination. Consequently, the efficiency of perovskite solar cells with NPEGN treatment increases to 21.02%, while the unencapsulated devices retained 100% of their initial power conversion efficiency for 2200 h in nitrogen atmosphere and 90% of their initial efficiency for 450 h at 65°C.","PeriodicalId":230,"journal":{"name":"Solar RRL","volume":"9 7","pages":""},"PeriodicalIF":6.0,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143762109","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