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In-situ photo-polymerized elastomeric composite electrolytes containing Li6.4La3Zr1.4Ta0.6O12 particles for stable operation in lithium metal batteries 含 Li6.4La3Zr1.4Ta0.6O12 颗粒的原位光聚合弹性复合电解质,用于锂金属电池的稳定运行
IF 10.7
EcoMat Pub Date : 2024-11-13 DOI: 10.1002/eom2.12503
Seung Ho Kwon, Seongmin Kim, Jinseok Park, Michael J. Lee, Youyoung Byun, Hyun Jung Kim, Young Min Baek, Jaegyeom Kim, Eunji Lee, Seung Woo Lee, Bumjoon J. Kim
{"title":"In-situ photo-polymerized elastomeric composite electrolytes containing Li6.4La3Zr1.4Ta0.6O12 particles for stable operation in lithium metal batteries","authors":"Seung Ho Kwon,&nbsp;Seongmin Kim,&nbsp;Jinseok Park,&nbsp;Michael J. Lee,&nbsp;Youyoung Byun,&nbsp;Hyun Jung Kim,&nbsp;Young Min Baek,&nbsp;Jaegyeom Kim,&nbsp;Eunji Lee,&nbsp;Seung Woo Lee,&nbsp;Bumjoon J. Kim","doi":"10.1002/eom2.12503","DOIUrl":"https://doi.org/10.1002/eom2.12503","url":null,"abstract":"<p>Composite polymer electrolytes (CPEs), produced by incorporating inorganic nanoparticles (NPs) into polymer matrices, have gained significant attention as promising candidates for solid-state lithium metal batteries (LMBs). However, the aggregation of dense inorganic fillers results in nonuniform CPEs, thereby impeding LMB performance. Here, we fabricated in-situ photo-polymerized CPEs by incorporating different weight ratios (0–20 wt%) of Li<sub>6.4</sub>La<sub>3</sub>Zr<sub>1.4</sub>Ta<sub>0.6</sub>O<sub>12</sub> (LLZTO) into a polymer electrolyte system composed of poly(butyl acrylate)-based elastomer and succinonitrile-based plastic crystal phases. The rapid photo-polymerization process (~5 min) enabled homogeneous dispersion of LLZTO within the CPE matrix at 10 wt% LLZTO (L10), resulting in the high ionic conductivity (1.02 mS cm<sup>−1</sup> at 25°C) and mechanical elasticity (elongation at break ≈ 1250%) compared to those of CPE without LLZTO (L0). As a result, the L10-based LMB with a LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> cathode exhibited a high capacity of 166.7 mAh g<sup>−1</sup> after 200 cycles at 0.5C, significantly higher than those of L0 (74.0 mAh g<sup>−1</sup>) and L20 (104.8 mAh g<sup>−1</sup>). In comparison, in-situ thermal polymerized CPE with 10 wt% LLZTO NPs showed aggregation of NPs due to slow polymerization kinetics (~2 h), resulting in inferior LMB cycling performance compared to the L10. This work highlights the importance of in-situ photo-polymerized CPEs with homogenous dispersion of inorganic NPs to achieve high ionic conductivity and mechanical robustness suitable for the stable operation of LMBs.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 12","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868668","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
Impact of conducting agents on sulfide and halide electrolytes in disordered rocksalt cathode-based all-solid-state batteries 导电剂对无序岩盐阴极全固态电池中硫化物和卤化物电解质的影响
IF 10.7
EcoMat Pub Date : 2024-11-12 DOI: 10.1002/eom2.12502
Youngkwang Jung, You-Yeob Song, Yoon-Seong Kim, Yubin Chung, Dae-Hyung Lee, Sang-Wook Park, Hojoon Kim, Hong-Seok Min, Jesik Park, Juyeong Seong, Sung-Kyun Jung, Dong-Hwa Seo
{"title":"Impact of conducting agents on sulfide and halide electrolytes in disordered rocksalt cathode-based all-solid-state batteries","authors":"Youngkwang Jung,&nbsp;You-Yeob Song,&nbsp;Yoon-Seong Kim,&nbsp;Yubin Chung,&nbsp;Dae-Hyung Lee,&nbsp;Sang-Wook Park,&nbsp;Hojoon Kim,&nbsp;Hong-Seok Min,&nbsp;Jesik Park,&nbsp;Juyeong Seong,&nbsp;Sung-Kyun Jung,&nbsp;Dong-Hwa Seo","doi":"10.1002/eom2.12502","DOIUrl":"https://doi.org/10.1002/eom2.12502","url":null,"abstract":"<p>All-solid-state battery (ASSB) systems have attracted significant attention due to their high energy density and safety compared with conventional batteries. Moreover, the application of Mn-based cation-disordered rock-salt (DRX) that possesses cost-effectiveness and high energy density on the ASSB system as a cathode is expected to be the superior next-generation battery system. However, DRX cathodes require high carbon contents due to their low electronic conductivity, leading to challenges in introducing them in ASSB systems, as the high carbon levels can cause electrolyte decomposition which potentially affects overall electrochemical performance. In this work, we applied Mn-based DRX cathodes to ASSB systems within a voltage range of 1.5–4.8 V and evaluated the suitability of cathode composites using halide and sulfide electrolytes as catholytes, respectively. The experimental results showed that the high carbon contents induced side reactions with the argyrodite, resulting in electrochemical degradation such as the drop of initial discharge voltage and the capacity fading. Meanwhile, cathode composites using a halide electrolyte exhibited relatively enhanced electrochemical performance due to its high oxidation stability regardless of the high amount of carbon contents. Consequently, the electrochemical reactions of the electrolyte, influenced by the content of conductive additives and the type of electrolyte, had a great impact on the performance of ASSB systems. This study provides a deep understanding of the interplaying among solid electrolytes, cathodes, and conductive additives and offers an important foundation for future research and development in ASSB systems.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 12","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12502","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868388","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
Erbium chloride-mediated nucleation/crystallization control for high-performance tin-based perovskite solar cells 高性能锡基钙钛矿太阳能电池的氯化铒介导成核/结晶控制
IF 10.7
EcoMat Pub Date : 2024-10-30 DOI: 10.1002/eom2.12500
Du Hyeon Ryu, Jun Hyung Kim, Jorim Okoth Obila, Hyun-Sung Yun, Seungjin Lee, Bong Joo Kang, Nam Joong Jeon, Ki-Ha Hong, Jaeki Jeong, Sang Hyuk Im, Chang Eun Song
{"title":"Erbium chloride-mediated nucleation/crystallization control for high-performance tin-based perovskite solar cells","authors":"Du Hyeon Ryu,&nbsp;Jun Hyung Kim,&nbsp;Jorim Okoth Obila,&nbsp;Hyun-Sung Yun,&nbsp;Seungjin Lee,&nbsp;Bong Joo Kang,&nbsp;Nam Joong Jeon,&nbsp;Ki-Ha Hong,&nbsp;Jaeki Jeong,&nbsp;Sang Hyuk Im,&nbsp;Chang Eun Song","doi":"10.1002/eom2.12500","DOIUrl":"https://doi.org/10.1002/eom2.12500","url":null,"abstract":"<p>Tin-halide perovskite solar cells (THPSCs), while offering low toxicity and high theoretical power conversion efficiency, suffer from inferior device performance compared to lead-based counterparts. The primary limitations arise from challenges in fabricating high-quality perovskite films and mitigating the oxidation of Sn<sup>2+</sup> ions, which leads to severe non-radiative voltage losses. To address these issues, we incorporate the rare-earth element erbium chloride (ErCl<sub>3</sub>) into PEA<sub>0.15</sub>FA<sub>0.70</sub>EA<sub>0.15</sub>SnI<sub>2.70</sub>Br<sub>0.30</sub> perovskite to effectively control the nucleation and crystal growth, significantly influencing the morphology of the perovskite films. As a result, the ErCl<sub>3</sub>-processed THPSC exhibits an impressive open-circuit voltage (<i>V</i><sub>OC</sub>) of 0.83 V and power conversion efficiency (PCE) of 14.0% with the superior light and air stability, compared to the control device (<i>V</i><sub>OC</sub> = 0.77 V and PCE = 12.8%). This ErCl<sub>3</sub>-strategy provides a feasible solution for high-performance THPSCs by regulating nucleation/crystallization kinetics and mitigating excessive crystal defects during the preparation process of lead-free perovskites.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 12","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12500","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869241","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
PTAA-infiltrated thin-walled carbon nanotube electrode with hidden encapsulation for perovskite solar cells 用于过氧化物太阳能电池的具有隐藏封装功能的 PTAA 注入式薄壁碳纳米管电极
IF 10.7
EcoMat Pub Date : 2024-10-30 DOI: 10.1002/eom2.12495
Eun Chong Chae, You-Hyun Seo, Bong Joo Kang, Jin Ho Oh, Yeonsu Jung, Jinho Jang, Taehoon Kim, Yong-Ryun Jo, Dong Jun Kim, Taek-Soo Kim, Sang Hyuk Im, Sae Jin Sung, Seong Sik Shin, Soonil Hong, Nam Joong Jeon
{"title":"PTAA-infiltrated thin-walled carbon nanotube electrode with hidden encapsulation for perovskite solar cells","authors":"Eun Chong Chae,&nbsp;You-Hyun Seo,&nbsp;Bong Joo Kang,&nbsp;Jin Ho Oh,&nbsp;Yeonsu Jung,&nbsp;Jinho Jang,&nbsp;Taehoon Kim,&nbsp;Yong-Ryun Jo,&nbsp;Dong Jun Kim,&nbsp;Taek-Soo Kim,&nbsp;Sang Hyuk Im,&nbsp;Sae Jin Sung,&nbsp;Seong Sik Shin,&nbsp;Soonil Hong,&nbsp;Nam Joong Jeon","doi":"10.1002/eom2.12495","DOIUrl":"https://doi.org/10.1002/eom2.12495","url":null,"abstract":"<p>In perovskite solar cells (PSCs), expensive gold or silver metal has traditionally been utilized as the rear electrode for highly efficient performance. In this context, carbon nanotube (CNT) electrodes have been considered promising rear electrodes because of their excellent electrical conductivity, mechanical strength, and chemical stability in PSCs. Despite these favorable characteristics, concerns have been raised about the power conversion efficiency (PCE) and stability of PSCs based on CNTs due to the porosity of CNT electrodes. In this study, we employed both poly(triarylamine) (PTAA) infiltration and rear electrode hidden encapsulation approaches to address issues related to the porosity of thin-walled carbon nanotube (TWCNT) electrodes to achieve high efficiency and stability. The infiltration of low-molecular-weight PTAA into the TWCNT electrode reduced electrode porosity while simultaneously improving the interfacial contact of the TWCNT layer with the perovskite layer. Furthermore, a novel encapsulation design was employed to prevent air and water exposure of the TWCNT electrode, which significantly enhanced device stability. PSCs with TWCNT rear electrodes developed on the basis of these strategies have the best PCE of 19.5% and show long-term stability, retaining 96% and 74% of the initial PCE after 225 h at maximum power point tracking under AM 1.5G illumination and 916 h at 85°C/85% relative humidity, respectively.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 11","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12495","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665197","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
Microwave-assisted control of PtNi nanoalloy clusters on the nitrogen-doped graphene oxide for energy conversion with oxygen reduction reaction and hydrogen evolution reaction 微波辅助控制Pt - Ni纳米合金团簇在氮掺杂氧化石墨烯上进行氧还原反应和析氢反应的能量转换
IF 10.7
EcoMat Pub Date : 2024-10-28 DOI: 10.1002/eom2.12499
Seung Geun Jo, Gil-Ryeong Park, Jemin Kim, Do Hyun Ahn, Rahul Ramkumar, Sun-I Kim, Duck Hyun Lee, Jung Woo Lee
{"title":"Microwave-assisted control of PtNi nanoalloy clusters on the nitrogen-doped graphene oxide for energy conversion with oxygen reduction reaction and hydrogen evolution reaction","authors":"Seung Geun Jo,&nbsp;Gil-Ryeong Park,&nbsp;Jemin Kim,&nbsp;Do Hyun Ahn,&nbsp;Rahul Ramkumar,&nbsp;Sun-I Kim,&nbsp;Duck Hyun Lee,&nbsp;Jung Woo Lee","doi":"10.1002/eom2.12499","DOIUrl":"https://doi.org/10.1002/eom2.12499","url":null,"abstract":"<p>Research on the production and utilization of hydrogen energy is essential to overcome the environmental issues caused by fossil fuels. Herein, we anchor Pt<span></span>Ni nanoalloy clusters (Pt-Ni NACs) on nitrogen-doped graphene oxide (NrGO) by a facile microwave-assisted synthesis and analyze the variations of catalyst properties based on the Pt<span></span>Ni composition and the presence of nitrogen. Ni inclusion in the Pt matrix can induce lattice strain and change the electronic structure, while the doped nitrogen into the graphene can enhance electron transfer and improve the durability of the catalyst through strong chemical bonding with the alloy clusters. TEM analysis discovers that the NACs are uniformly decorated in a few-nanometer-size on the graphene surface, and the formation of the Pt<span></span>Ni NACs and structural changes according to composition are confirmed through XRD and XPS. In addition, the structural changes due to N-doping and its bonding with the NACs are observed through Raman spectroscopy and XPS. Electrochemical measurements reveal that Pt<sub>2.6</sub>Ni NACs/NrGO exhibits the highest ORR onset potential (0.893 V) and the lowest HER overpotential at 10 mA cm<sup>−2</sup> (22 mV) among other catalysts, and those activities are almost unchanged under long-term durability tests. From these results, Pt<sub>2.6</sub>Ni NACs/NrGO is utilized in a zinc-air battery (ZAB) system, demonstrating better battery performance than commercial Pt and Ir-based catalysts. Moreover, it is applied to hydrogen collection, showing linear trend in hydrogen production over time, confirming the catalyst's availability in hydrogen production and utilization.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 12","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869175","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
Halogen-free solvent processed organic solar sub-modules (≈55 cm2) with 14.70% efficiency by controlling the morphology of alkyl chain engineered polymer donor 通过控制烷基链工程聚合物供体的形态,无卤素溶剂加工的有机太阳能子模块(≈55 cm2)效率达到 14.70
IF 10.7
EcoMat Pub Date : 2024-10-27 DOI: 10.1002/eom2.12496
Thavamani Gokulnath, Hyerin Kim, Donghyun Song, Ho-Yeol Park, Je-Sung Jee, Young Yong Kim, Jinhwan Yoon, Kakaraparthi Kranthiraja, Sung-Ho Jin
{"title":"Halogen-free solvent processed organic solar sub-modules (≈55 cm2) with 14.70% efficiency by controlling the morphology of alkyl chain engineered polymer donor","authors":"Thavamani Gokulnath,&nbsp;Hyerin Kim,&nbsp;Donghyun Song,&nbsp;Ho-Yeol Park,&nbsp;Je-Sung Jee,&nbsp;Young Yong Kim,&nbsp;Jinhwan Yoon,&nbsp;Kakaraparthi Kranthiraja,&nbsp;Sung-Ho Jin","doi":"10.1002/eom2.12496","DOIUrl":"https://doi.org/10.1002/eom2.12496","url":null,"abstract":"<p>Goals of high efficiency, morphological analysis, and the ability to produce organic solar cell (OSC) sub-modules using halogen-free solvents are demanding. In this study, a robust conjugated polymer with thienothiophene π-spacer with pendant alkyl side chain (NapBDT-C12) was synthesized and used to fabricate sub-modules. Excellent efficiencies were demonstrated by a NapBDT-C12 integrated ternary blend, which was used to produce stable small-area-to-sub-module devices using <i>O</i>-xylene. The efficiency of the NapBDT-C12 added small-area ternary devices (PM6:NapBDT-C12:L8-BO) was 18.71%. Owing to the controlled homogeneity of the blend with favorable nanoscale film morphology, enhanced carrier mobilities, and exciton dissociation/splitting properties, contributed to the efficiencies of small-area-to-sub-module OSCs. Moreover, a 55 cm<sup>2</sup> sub-module with an efficiency of 14.69% was accomplished by bar coating using <i>O</i>-xylene under ambient conditions. This study displays the potential of a ternary blend based OSC device to produce high efficiency scalable sub-modules at ambient conditions.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 11","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12496","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666087","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 review of recent developments in the design of electrolytes and solid electrolyte interphase for lithium metal batteries 综述了锂金属电池电解液和固体电解液界面设计的最新进展
IF 10.7
EcoMat Pub Date : 2024-10-23 DOI: 10.1002/eom2.12498
Hyeonmuk Kang, Heechan Kang, Mikyeong Lyu, EunAe Cho
{"title":"A review of recent developments in the design of electrolytes and solid electrolyte interphase for lithium metal batteries","authors":"Hyeonmuk Kang,&nbsp;Heechan Kang,&nbsp;Mikyeong Lyu,&nbsp;EunAe Cho","doi":"10.1002/eom2.12498","DOIUrl":"https://doi.org/10.1002/eom2.12498","url":null,"abstract":"<p>Lithium metal batteries offer a promising solution for high density energy storage due to their high theoretical capacity and negative electrochemical potential. However, implementing of these batteries faces challenges related to electrolyte instability and the formation of a solid electrolyte interphase (SEI) on the lithium (Li) metal anode. The decomposition of liquid electrolytes leading to the creation of the SEI emphasizes the significance of the type of Li salt, solvent, and additives designed and used, as well as their interactions during the formation of the SEI. For practical applications, ensuring both the reversibility of the Li metal anode and electrolyte stability at high voltages is crucial. In this review, we explore recent advancements in addressing these challenges through new designs of electrolytes and SEI engineering practices. Specifically, we investigate the effects of electrolyte systems, including carbonate-based and ether-based solutions, along with modifications to these electrolyte systems aimed at achieving a more stable interface with the Li metal anode. Additionally, we discuss various artificial SEI structures based on organic and inorganic components. By critically examining recent research in these areas, this review provides valuable insights into current state-of-the-art strategies for enhancing the performance and safety of Li metal batteries.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 12","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12498","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142868948","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
Minimizing voltage losses in Sn perovskite solar cells by Cs2SnI6 passivation 通过钝化 Cs2SnI6 使锡过氧化物太阳能电池的电压损失最小化
IF 10.7
EcoMat Pub Date : 2024-10-21 DOI: 10.1002/eom2.12491
Jin Hyuck Heo, Sang Woo Park, Hyong Joon Lee, Jin Kyoung Park, Sang Hyuk Im, Ki-Ha Hong
{"title":"Minimizing voltage losses in Sn perovskite solar cells by Cs2SnI6 passivation","authors":"Jin Hyuck Heo,&nbsp;Sang Woo Park,&nbsp;Hyong Joon Lee,&nbsp;Jin Kyoung Park,&nbsp;Sang Hyuk Im,&nbsp;Ki-Ha Hong","doi":"10.1002/eom2.12491","DOIUrl":"https://doi.org/10.1002/eom2.12491","url":null,"abstract":"<p>Stability and oxidation are major bottlenecks in improving the performance of Sn-based perovskite solar cells. In this study, we present the formation of an n-type Cs<sub>2</sub>SnI<sub>6</sub> double-perovskite (Sn-DP) layer on a (PEAI)<sub>0.15</sub>(FAI)<sub>0.85</sub>SnI<sub>2</sub> perovskite (Sn-P) layer using an orthogonal solution-processable spray-coating method. This novel approach achieves a minimized <i>V</i><sub>oc</sub> loss of 0.38 V and a PCE of 12.9% under 1 sun conditions. The n-type DP layer effectively passivates tin vacancies, suppresses Sn<sup>2+</sup> oxidation, reduces defects, and enhances electron extraction. Furthermore, the Sn-DP/Sn-P-based solar cells exhibit excellent light-soaking stability for 1000 h in the air under continuous one sun illumination, which is attributed to the stable Sn<sup>4+</sup> state of the DP layer. Our experimental and theoretical investigations reveal that the type-II band alignment between Sn-DP and Sn-P enhances the stability of the solar cells. The proposed Sn-DP/Sn-P architecture offers a promising pathway for developing Sn-based solar cells.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 11","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142665004","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
Optimization strategy of triboelectric nanogenerators for high humidity environment service performance 针对高湿度环境服务性能的三电纳米发电机优化策略
IF 10.7
EcoMat Pub Date : 2024-10-19 DOI: 10.1002/eom2.12493
Xichen Yin, Zhou Chen, Hui Chen, Qing Wang, Qian Chen, Cheng Wang, Chaoyue Ye
{"title":"Optimization strategy of triboelectric nanogenerators for high humidity environment service performance","authors":"Xichen Yin,&nbsp;Zhou Chen,&nbsp;Hui Chen,&nbsp;Qing Wang,&nbsp;Qian Chen,&nbsp;Cheng Wang,&nbsp;Chaoyue Ye","doi":"10.1002/eom2.12493","DOIUrl":"https://doi.org/10.1002/eom2.12493","url":null,"abstract":"<p>With triboelectric nanogenerators (TENGs) introduced in 2012, they have emerged in the fields of flexible wearable electronics, portable energy, Internet of Things (IoTs), and biomedicine by virtue of their lightweight, high-energy conversion, low cost, and material selectivity. However, as the application areas of TENGs increase, ambient humidity and human movement generate sweat and moisture that can lead to a decrease in output, so exploring how TENGs operate in high humidity environments is critical to their long-term development. In this paper, different strategies are introduced to enhance TENGs in high humidity environments, such as encapsulation, construction of hydrophobic/superhydrophobic surfaces, and hydrogen bonding enhancement, and discuss the applications of humidity-resistant TENGs in fields such as self-powered sensors, energy harvesters, and motions, and so forth. Finally, we explore the future directions and routes for the development of humidity-resistant TENGs.</p><p>\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":93174,"journal":{"name":"EcoMat","volume":"6 11","pages":""},"PeriodicalIF":10.7,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eom2.12493","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142664992","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
Electrostatic charge injection for reusing face masks: Mechanisms, performance, and a household alternative 用于重复使用口罩的静电电荷注入:机制、性能和家用替代品
IF 10.7
EcoMat Pub Date : 2024-10-19 DOI: 10.1002/eom2.12497
Zehua Peng, Zhiyuan Li, Xingcan Huang, Xinge Yu, Michael K. H. Leung, Zuankai Wang, Zhengbao Yang
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