EcoMat Pub Date : 2024-05-29 DOI: 10.1002/eom2.12455

Gyeong G. Jeon, Da Seul Lee, Min Jun Choi, You-Hyun Seo, Shujuan Huang, Jong H. Kim, Seong Sik Shin, Jincheol Kim

{"title":"Mitigation of parasitic leakage current in indoor perovskite photovoltaic modules using porous alumina interlayer","authors":"Gyeong G. Jeon, Da Seul Lee, Min Jun Choi, You-Hyun Seo, Shujuan Huang, Jong H. Kim, Seong Sik Shin, Jincheol Kim","doi":"10.1002/eom2.12455","DOIUrl":"10.1002/eom2.12455","url":null,"abstract":"Indoor photovoltaics are limited by their inherently low-photogenerated carrier density, leading to heightened carrier recombination and adverse leakage currents compared with conventional solar cells operating under 1 sun condition. To address these problems, this work incorporates a porous insulating interlayer (Al2O3) in perovskite devices, which effectively mitigates recombination and parasitic leakage current. A systematic investigation of the relationship between shunt resistance, photocarrier generation, and recombination at different light intensities demonstrates the effectiveness of the alumina interlayer in perovskite solar cells under low-light conditions. Moreover, the practicability of the alumina interlayer was demonstrated through its successful implementation in a large-area perovskite solar module (PSM). With bandgap engineering, the optimized PSM achieves a remarkable power conversion efficiency of 33.5% and a record-breaking power density of 107.3 μW cm−2 under 1000 lux illumination. These results underscore the potential of alumina interlayers in improving energy harvesting performance, particularly in low-light indoor environments.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12455","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141196875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reinforced nanowrinkle electrospun photothermal membranes via solvent-induced recrystallization 通过溶剂诱导再结晶强化纳米皱纹电纺光热膜

EcoMat Pub Date : 2024-05-19 DOI: 10.1002/eom2.12454

Jinlin Chang, Weiling Wang, Zhaoxin Li, Yujiao Wang, Yacong Hou, Zhiyuan Cao, Zhenwei Liang, Yuan Ma, Ding Weng, Jun Song, Yadong Yu, Lei Chen, Jiadao Wang

{"title":"Reinforced nanowrinkle electrospun photothermal membranes via solvent-induced recrystallization","authors":"Jinlin Chang, Weiling Wang, Zhaoxin Li, Yujiao Wang, Yacong Hou, Zhiyuan Cao, Zhenwei Liang, Yuan Ma, Ding Weng, Jun Song, Yadong Yu, Lei Chen, Jiadao Wang","doi":"10.1002/eom2.12454","DOIUrl":"10.1002/eom2.12454","url":null,"abstract":"Wearable photothermal materials can capture light energy in nature and convert it into heat energy, which is critical for flexible outdoor sports. However, the conventional flexible photothermal membranes with low specific surface area restrict the maximum photothermal capability, and loose structure of electrospun membrane limits durability of wearable materials. Here, an ultrathin nanostructure candle soot/multi-walled carbon nanotubes/poly (L-lactic acid) (CS/MWCNTs/PLLA) photothermal membrane is first prepared via solvent-induced recrystallization. The white blood cell membrane-like nanowrinkles with high specific surface area are achieved for the first time and exhibit optimal light absorption. The solvent-induced recrystallization also enables the membrane to realize large strength and durability. Meanwhile, the membranes also show two-sided heterochromatic features and transparency in thick and thin situations, respectively, suggesting outstanding fashionability. The nano-wrinkled photothermal membranes by novel solvent-induced recrystallization show high flexibility, fashionability, strength, and photothermal characteristics, which have huge potential for outdoor warmth and winter sportswear.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141123798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced sensitivity of zero-bias-operated MXene chemiresistive sensor via lignin hybridization 通过木质素杂交提高零偏压操作 MXene 化学电阻传感器的灵敏度

EcoMat Pub Date : 2024-05-07 DOI: 10.1002/eom2.12453

I Ketut Gary Devara, Mi Ji Kwon, Su-Yeon Cho, Dong-Jun Kwon, Jun Hong Park

{"title":"Enhanced sensitivity of zero-bias-operated MXene chemiresistive sensor via lignin hybridization","authors":"I Ketut Gary Devara, Mi Ji Kwon, Su-Yeon Cho, Dong-Jun Kwon, Jun Hong Park","doi":"10.1002/eom2.12453","DOIUrl":"10.1002/eom2.12453","url":null,"abstract":"As global urbanization intensifies, there is an increasing need for highly sensitive and accurate environmental monitoring devices that can meet the demands of specific gas sensing applications with low power consumption. This study focuses on enhancing the sensitivity of MXene-based chemiresistive sensors for detecting CO2(g) and NO2(g) under zero-bias operation. This study shows that lignin hybridization effectively improves the sensitivity of a Ti3C2Tx MXene-based chemiresistive sensor; under zero-bias operation, lignin hybridization increases the sensitivity to 15 ppm NO2(g) and CO2(g) by 157.38% and 297.95%, respectively. When deposited on a flexible substrate, the MXene/lignin flexible sensor shows a similar response and sensitivity to 15 ppm NO2(g) and CO2(g) under 38° curvature compared to the planar sensor. Consequently, the MXene/lignin hybrid sensor is attractive for room temperature and zero-bias NO2(g) and CO2(g) detection. The MXene/lignin flexible sensor serves as a model system for advanced solid-state sensory platforms suitable for curved structures.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12453","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140935693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A carbon dot toolbox for managing biotic and abiotic stresses in crop production systems 管理作物生产系统中生物和非生物压力的碳点工具箱

EcoMat Pub Date : 2024-05-05 DOI: 10.1002/eom2.12451

Muhammad U. Zia, Prabhakaran Thanjavur Sambasivam, Dechao Chen, Shamsul A. Bhuiyan, Rebecca Ford, Qin Li

{"title":"A carbon dot toolbox for managing biotic and abiotic stresses in crop production systems","authors":"Muhammad U. Zia, Prabhakaran Thanjavur Sambasivam, Dechao Chen, Shamsul A. Bhuiyan, Rebecca Ford, Qin Li","doi":"10.1002/eom2.12451","DOIUrl":"10.1002/eom2.12451","url":null,"abstract":"The productivity of global crop production is under threat caused by various biotic and abiotic adverse conditions, such as plant diseases and pests, which are responsible for 20%–40% of global crop losses estimated at a value of USD 220 billion, and can be further exacerbated by climate change. Agricultural industries are calling for game-changer technologies to enable productive and sustainable farming. Carbon dots (C-dots) are carbon-based nanoparticles, smaller than 50 nm, exhibiting unique opto-electro-properties. They have been shown to have positive impact on managing diverse biotic and abiotic stresses faced by the crops. Owing to their versatile carbon chemistry, the surface functionalities of C-dots can be readily tuned to regulate plant physiological processes. This review is focussed on establishing the correlations between the physiochemical properties of C-dots and their impacts on plants growth and health. The summary of the literature demonstrates that C-dots hold great promise in improving plant tolerance to heat, drought, toxic chemicals, and invading pathogens.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12451","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140888920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phosphorus-based anodes for fast-charging alkali metal ion batteries 用于快速充电碱金属离子电池的磷基阳极

EcoMat Pub Date : 2024-05-04 DOI: 10.1002/eom2.12452

Xuexia Lan, Zhen Li, Yi Zeng, Cuiping Han, Jing Peng, Hui-Ming Cheng

{"title":"Phosphorus-based anodes for fast-charging alkali metal ion batteries","authors":"Xuexia Lan, Zhen Li, Yi Zeng, Cuiping Han, Jing Peng, Hui-Ming Cheng","doi":"10.1002/eom2.12452","DOIUrl":"10.1002/eom2.12452","url":null,"abstract":"Advancing fast-charging technology is an important strategy for the development of alkali metal ion batteries (AMIBs). The exploitation of a new generation of anode material system with high-rate performance, high capacity, and low risk of lithium/sodium/potassium plating is critical to realize fast-charging capability of AMIBs while maintaining high energy density and safety. Among them, phosphorus-based anodes including phosphorus anodes and metal phosphide anodes have attracted wide attention, due to their high theoretical capacities, safe reaction voltages, and natural abundance. In this review, we summarize the research progress of different phosphorus-based anodes for fast-charging AMIBs, including material properties, mechanisms for storing alkali metal ions, key challenges and solution strategies for achieving fast-charging capability. Moreover, the future development directions of phosphorus-based anodes in fast-charging AMIBs are highlighted.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AIoT-enhanced health management system using soft and stretchable triboelectric sensors for human behavior monitoring 使用用于人类行为监测的软质可拉伸三电传感器的人工智能物联网增强型健康管理系统

EcoMat Pub Date : 2024-05-02 DOI: 10.1002/eom2.12448

Liang Xu, Songyi Zhong, Tao Yue, Zixuan Zhang, Xiao Lu, Yangqiao Lin, Long Li, Yingzhong Tian, Tao Jin, Quan Zhang, Chengkuo Lee

{"title":"AIoT-enhanced health management system using soft and stretchable triboelectric sensors for human behavior monitoring","authors":"Liang Xu, Songyi Zhong, Tao Yue, Zixuan Zhang, Xiao Lu, Yangqiao Lin, Long Li, Yingzhong Tian, Tao Jin, Quan Zhang, Chengkuo Lee","doi":"10.1002/eom2.12448","DOIUrl":"10.1002/eom2.12448","url":null,"abstract":"Sedentary, inadequate sleep and exercise can affect human health. Artificial intelligence (AI) and Internet of Things (IoT) create the Artificial Intelligence of Things (AIoT), providing the possibility to solve these problems. This paper presents a novel approach to monitor various human behaviors for AIoT-based health management using triboelectric nanogenerator (TENG) sensors. The insole with solely one TENG sensor, creating a most simplified system that utilizes machine learning (ML) for personalized motion monitoring, encompassing identity recognition and gait classification. A cushion with 12 TENG sensors achieves real-time identity and sitting posture recognition with accuracy rates of 98.86% and 98.40%, respectively, effectively correcting sedentary behavior. Similarly, a smart pillow, equipped with 15 sensory channels, detects head movements during sleep, identifying 8 sleep patterns with 96.25% accuracy. Ultimately, constructing an AIoT-based health management system to analyze these data, displaying health status through human-machine interfaces, offers the potential to help individuals maintain good health.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Life cycle assessment of lead-free potassium sodium niobate versus lead zirconate titanate: Energy and environmental impacts 无铅铌酸钠钾与锆钛酸铅的生命周期评估：能源和环境影响

EcoMat Pub Date : 2024-04-25 DOI: 10.1002/eom2.12450

Yanqi Wu, Pak-Sheng Soon, Jing-Tong Lu, Jinling Zhou, Yi-Xuan Liu, Zhaohui Guo, Ke Wang, Wen Gong

{"title":"Life cycle assessment of lead-free potassium sodium niobate versus lead zirconate titanate: Energy and environmental impacts","authors":"Yanqi Wu, Pak-Sheng Soon, Jing-Tong Lu, Jinling Zhou, Yi-Xuan Liu, Zhaohui Guo, Ke Wang, Wen Gong","doi":"10.1002/eom2.12450","DOIUrl":"10.1002/eom2.12450","url":null,"abstract":"Over the years, lead-based piezoelectric ceramics found extensive use in vital fields such as sensors and actuators. Despite their exceptional electromechanical properties, lead-containing materials pose severe environmental risks and foster a new era of lead-free piezoelectric materials after decades of research. However, recent comparative assessments of potassium sodium niobate (KNN) versus lead zirconate titanate (PZT) piezoelectric materials proposed that the environmental damage already presented before use due to raw material extraction and processing, invoking concerns on the true greenness of the lead-free alternatives. Nevertheless, many other factors deserve further consideration, for example, reference geometry and life cycle stage. Herein, the comprehensive life cycle assessment is undertaken on PZT and KNN-based ceramics with a unit volume of 0.001 m3 from cradle to gate. Results show that PZT exhibits higher negative impacts than KNN-based counterparts, attributed to lead extraction, processing, and associated environmental emissions. Across primary quantitative impact indicators from toxicity, environmental, and resource aspects, KNN-based ceramics impose fewer risks on the environment and human health, with the overall impact being only 28% of PZT ceramics. Still, more efficient methods are required for KNN-based ceramics to reduce the high energy consumption and emission during extraction and purification of raw material Nb2O5. This work not only offers critical insights for material development but also serves as a multifaceted reference for advanced fabrication technologies.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12450","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140658284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailoring Li2CO3 configuration and orbital structure of CoS to improve catalytic activity and stability for Li-CO2 batteries 调整 CoS 的 Li2CO3 构型和轨道结构，提高锂-CO2 电池的催化活性和稳定性

EcoMat Pub Date : 2024-04-17 DOI: 10.1002/eom2.12449

Rui Mao, Yingqi Liu, Pengfei Shu, Bingyi Lu, Biao Chen, Yanli Chen, Yanze Song, Yeyang Jia, Zhiyang Zheng, Qiong Peng, Guangmin Zhou

{"title":"Tailoring Li2CO3 configuration and orbital structure of CoS to improve catalytic activity and stability for Li-CO2 batteries","authors":"Rui Mao, Yingqi Liu, Pengfei Shu, Bingyi Lu, Biao Chen, Yanli Chen, Yanze Song, Yeyang Jia, Zhiyang Zheng, Qiong Peng, Guangmin Zhou","doi":"10.1002/eom2.12449","DOIUrl":"10.1002/eom2.12449","url":null,"abstract":"The sluggish reaction kinetics has greatly hampered the development of reversible Li-CO2 batteries. Especially during charge, high charge voltage and possible side reactions during Li2CO3 decomposition require both high activity and strong durability of catalysts. Herein, a strategy of introducing rich sulfur vacancies is proposed, which tailors the configuration of Li2CO3 and the orbital structure of CoS to realize the dual enhancement. The calculation results show that charge redistribution by sulfur vacancies on the catalyst stretches the adsorbed Li2CO3 and consequently facilitates its decomposition. Moreover, the induced vacancies lower the S 2p band center, promoting the electrochemical stability of sulfides. Therefore, Li-CO2 batteries with sulfur vacancy-rich CoS exhibit a low overpotential of 1.07 V after 400 h cycling, while batteries with pristine CoS have a short lifespan that the overpotential exceeds 1.75 V after cycling for 200 h. This study not only proposes a strategy to improve both catalytic activity and stability but also paves new avenues for designing advanced catalysts for Li-CO2 batteries and beyond.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12449","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140690562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laser-induced graphene formation on recycled woods for green smart furniture 在回收木材上形成激光诱导石墨烯，打造绿色智能家具

EcoMat Pub Date : 2024-04-03 DOI: 10.1002/eom2.12447

Han Ku Nam, Jungrak Choi, Tongmei Jing, Dongwook Yang, Younggeun Lee, Young-Ryeul Kim, Truong-Son Dinh Le, Byunggi Kim, Liandong Yu, Seung-Woo Kim, Inkyu Park, Young-Jin Kim

{"title":"Laser-induced graphene formation on recycled woods for green smart furniture","authors":"Han Ku Nam, Jungrak Choi, Tongmei Jing, Dongwook Yang, Younggeun Lee, Young-Ryeul Kim, Truong-Son Dinh Le, Byunggi Kim, Liandong Yu, Seung-Woo Kim, Inkyu Park, Young-Jin Kim","doi":"10.1002/eom2.12447","DOIUrl":"https://doi.org/10.1002/eom2.12447","url":null,"abstract":"In the pursuit of carbon neutrality policies, the development of eco-friendly and intelligent furniture commands a significant role. However, the integration of non-biodegradable electronic components in smart furniture fabrication has led to substantial electronic waste. Here, we report a straightforward approach, the rapid production of Laser-Induced Graphene (LIG) on medium-density fiberboard (MDF), a prevalent recycled wood in furniture production. This LIG electrode is crafted with negligible material ablation in ambient air with the aid of femtosecond laser pulses, without requiring any additional materials, showcasing the highest electrical conductivity (2.781 Ω sq−1) among previously reported lignocellulosic materials-based LIG. The application of this LIG electrode for lighting, heating, and touch sensors displays sufficient performance for smart furniture implementation. For eco-conscious furniture, LIG-based human-machine interfaces are demonstrated on recycled woods for the facile control of smart devices, which will readily enable IoT-oriented smart sustainable furniture.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing performance of two-step fabricated perovskite solar cells with sulfonium triflate-based additive 利用三酸锍添加剂提高两步法制造的过氧化物太阳能电池的性能

EcoMat Pub Date : 2024-03-31 DOI: 10.1002/eom2.12446

Yeeun Kim, Hyunjun Lee, Cheongbeom Lee, Beomjin Kim, Nayoon Kwon, Taewoong Son, Jaehee Lee, Jaegwan Sin, Taejoo Shin, Jungyup Yang, Kyeounghak Kim, Jangwon Seo

{"title":"Enhancing performance of two-step fabricated perovskite solar cells with sulfonium triflate-based additive","authors":"Yeeun Kim, Hyunjun Lee, Cheongbeom Lee, Beomjin Kim, Nayoon Kwon, Taewoong Son, Jaehee Lee, Jaegwan Sin, Taejoo Shin, Jungyup Yang, Kyeounghak Kim, Jangwon Seo","doi":"10.1002/eom2.12446","DOIUrl":"https://doi.org/10.1002/eom2.12446","url":null,"abstract":"We incorporated triphenylsulfonium triflate (TPST), a sulfonium-based additive consisting of polar triflate and bulky hydrophobic phenyl rings, to the PbI2 precursor solution for preparation of less-defect perovskite film via two-step fabrication. TPST induced localized alterations in the array of the PbI2 structure due to its large size, thereby forming a more discontinuous and coarser surface with a greater number of pinholes and subsequently facilitating more efficient organic–inorganic reactions. As a result, we achieved the production of thick perovskite films with enlarged granules and decreased PbI2 residuals in the two-step fabrication process. Furthermore, TPST facilitated the passivation of bulk film defects by increasing the binding energy with the defects. Consequently, the ITO/SnO2 np-based device and the FTO/CBD SnO2-based device obtained the best PCEs of 23.88% and 24.30%, respectively. Furthermore, the moisture stability of the perovskite was improved by the hydrophobic character of the TPST additive.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12446","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140544566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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