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Operando Focused Ion Beam–Scanning Electron Microscope (FIB-SEM) Revealing Microstructural and Morphological Evolution in a Solid-State Battery 揭示固态电池微结构和形态演变的操作型聚焦离子束扫描电子显微镜 (FIB-SEM)
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01750
Patrice Perrenot, Pascale Bayle-Guillemaud, Pierre-Henri Jouneau, Adrien Boulineau, Claire Villevieille
{"title":"Operando Focused Ion Beam–Scanning Electron Microscope (FIB-SEM) Revealing Microstructural and Morphological Evolution in a Solid-State Battery","authors":"Patrice Perrenot, Pascale Bayle-Guillemaud, Pierre-Henri Jouneau, Adrien Boulineau, Claire Villevieille","doi":"10.1021/acsenergylett.4c01750","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01750","url":null,"abstract":"Thiophosphates have emerged as a promising solid electrolyte for the forthcoming solid-state battery technology only if transport properties, both electronic and ionic, can be controlled within the composite electrode. Unfortunately, during cycling, several chemo-mechanical degradations are occurring hindering the transport properties inside the batteries. Solutions could be provided if one could track the dynamics of such degradation processes. The development of a specific <i>operando</i> focused ion beam–scanning electron microscope (FIB-SEM) approach helps us to perform imaging during cycling and thus address the dynamic morphological investigation of a composite electrode LiNi<sub>0.6</sub>Mn<sub>0.2</sub>Co<sub>0.2</sub>O<sub>2</sub> (NMC622 coupled to amorphous Li<sub>3</sub>PS<sub>4</sub>). This advanced methodology makes it possible to highlight the mechanical stress endured by the electroactive materials and by the electrolyte during cycling. In this study, polycrystalline NMC622 microstructural evolution was monitored during charge and discharge, showing that the polycrystalline morphology is poorly adapted to solid-state batteries and that the interface adhesion should be better controlled to enhance the electrochemical performance.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Formal Oxidation States and Coordination Environments in the Catalytic Reduction of CO to Methanol 催化 CO 还原成甲醇过程中的形式氧化态和配位环境
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01269
Irene Barba-Nieto, Andressa V. Müller, Charles J. Titus, Dominik Wierzbicki, Cherno Jaye, Mehmed Z. Ertem, Gerald J. Meyer, Javier J. Concepcion, José A. Rodriguez
{"title":"Formal Oxidation States and Coordination Environments in the Catalytic Reduction of CO to Methanol","authors":"Irene Barba-Nieto, Andressa V. Müller, Charles J. Titus, Dominik Wierzbicki, Cherno Jaye, Mehmed Z. Ertem, Gerald J. Meyer, Javier J. Concepcion, José A. Rodriguez","doi":"10.1021/acsenergylett.4c01269","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01269","url":null,"abstract":"Fundamental insight into multielectron, multiproton redox reactions with organometallic catalysts is greatly facilitated by knowledge of the formal oxidation state of the metal center in each of the elementary reaction steps that comprise the catalytic cycle. X-ray absorption near edge structure (XANES) is utilized herein to quantify the oxidation states and coordination environment of the organometallic resting state and intermediates in a newly proposed catalytic reduction of carbon monoxide to methanol.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Direct Anchoring of Molybdenum Sulfide Molecular Catalysts on Antimony Selenide Photocathodes for Solar Hydrogen Production 在硒化锑光阴极上直接锚定硫化钼分子催化剂以生产太阳能氢气
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01570
Pardis Adams, Jan Bühler, Iva Walz, Thomas Moehl, Helena Roithmeyer, Olivier Blacque, Nicolò Comini, J. Trey Diulus, Roger Alberto, Sebastian Siol, Mirjana Dimitrievska, Zbynek Novotny, S. David Tilley
{"title":"Direct Anchoring of Molybdenum Sulfide Molecular Catalysts on Antimony Selenide Photocathodes for Solar Hydrogen Production","authors":"Pardis Adams, Jan Bühler, Iva Walz, Thomas Moehl, Helena Roithmeyer, Olivier Blacque, Nicolò Comini, J. Trey Diulus, Roger Alberto, Sebastian Siol, Mirjana Dimitrievska, Zbynek Novotny, S. David Tilley","doi":"10.1021/acsenergylett.4c01570","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01570","url":null,"abstract":"Molybdenum sulfide serves as an effective nonprecious metal catalyst for hydrogen evolution, primarily active at edge sites with unsaturated molybdenum sites or terminal disulfides. To improve the activity at a low loading density, two molybdenum sulfide clusters, [Mo<sub>3</sub>S<sub>4</sub>]<sup>4+</sup> and [Mo<sub>3</sub>S<sub>13</sub>]<sup>2–</sup>, were investigated. The Mo<sub>3</sub>S<sub><i>x</i></sub> molecular catalysts were heterogenized on Sb<sub>2</sub>Se<sub>3</sub> with a simple soaking treatment, resulting in a thin catalyst layer of only a few nanometers that gave up to 20 mA cm<sup>–2</sup> under one sun illumination. Both [Mo<sub>3</sub>S<sub>4</sub>]<sup>4+</sup> and [Mo<sub>3</sub>S<sub>13</sub>]<sup>2–</sup> exhibit catalytic activities on Sb<sub>2</sub>Se<sub>3</sub>, with [Mo<sub>3</sub>S<sub>13</sub>]<sup>2–</sup> emerging as the superior catalyst, demonstrating enhanced photovoltage and an average faradaic efficiency of 100% for hydrogen evolution. This superiority is attributed to the effective loading and higher catalytic activity of [Mo<sub>3</sub>S<sub>13</sub>]<sup>2–</sup> on the Sb<sub>2</sub>Se<sub>3</sub> surface, validated by X-ray photoelectron and Raman spectroscopy.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Robust Cathode for Efficient CO2 Electrolysis Driven by Entropy Engineering in Solid Oxide Electrolysis Cells 固体氧化物电解池熵工程驱动的高效二氧化碳电解稳健阴极
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01447
Meiting Yang, Shuai Liu, Xinran Shen, Ruijia Xu, Jiangyuan Feng, Zhixin Luo, Guangming Yang, Yu Liu, Ran Ran, Wei Zhou, Zongping Shao
{"title":"Robust Cathode for Efficient CO2 Electrolysis Driven by Entropy Engineering in Solid Oxide Electrolysis Cells","authors":"Meiting Yang, Shuai Liu, Xinran Shen, Ruijia Xu, Jiangyuan Feng, Zhixin Luo, Guangming Yang, Yu Liu, Ran Ran, Wei Zhou, Zongping Shao","doi":"10.1021/acsenergylett.4c01447","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01447","url":null,"abstract":"Herein, we introduce an innovative approach of entropy engineering to design high-performance and durable electrodes. A series of perovskite oxides with varying configurational entropy (<i>S</i><sub>config</sub>) based on Pr<sub>1/2</sub>Ba<sub>1/2</sub>FeO<sub>3−δ</sub> (PBF) matrix are synthesized, and their physicochemical properties and electrochemical performances in CO<sub>2</sub> reduction reaction process are explored via manipulating <i>S</i><sub>config</sub>. Notably, a high-entropy perovskite, Pr<sub>1/6</sub>La<sub>1/6</sub>Sm<sub>1/6</sub>Ba<sub>1/6</sub>Sr<sub>1/6</sub>Ca<sub>1/6</sub>FeO<sub>3−δ</sub> (PLSBSCF), with an <i>S</i><sub>config</sub> of 1.79 R, exhibits significant lattice distortion due to homogeneous distributed A-site elements. It demonstrates a high concentration of oxygen vacancies, good CO<sub>2</sub> adsorption capability, and rapid O<sup>2–</sup>/e<sup>–</sup> conductions. Compared to bare PBF perovskite, PLSBSCF offers a greater number of active sites for CO<sub>2</sub>RR, and the corresponding cell achieves remarkably high current densities of 2.86 A cm<sup>–2</sup> at 850 °C (1.5 V) during direct CO<sub>2</sub> electrolysis, while maintaining good thermal stability and operational durability. Density Functional Theory calculations also confirm the good CO<sub>2</sub> reduction activity of PLSBSCF perovskite.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Roller-Coaster Ride with Journal Impact Factor 期刊影响因子的过山车之旅
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01709
Prashant V. Kamat
{"title":"Roller-Coaster Ride with Journal Impact Factor","authors":"Prashant V. Kamat","doi":"10.1021/acsenergylett.4c01709","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01709","url":null,"abstract":"Figure 1. Roller-coaster ride with JIFs of a few selected energy journals during a five-year period. Comparison of (A) JIF values and (B) Normalized JIF values (normalized to 2019 value). The shaded region in (B) shows 10% variation from the 2019 value. Source: Web of Science, Clarivate Analytics (data analyzed on June 21, 2024)). 2023 JIF = 2023 Citations ÷ 2021–2022 articles (denominator excludes editorial matters). The Journal Citation Indicator (JCI) is the average Category Normalized Citation Impact (CNCI) of citable items. Source: Scopus. <i>CiteScore</i> is based on 4 years of citations and articles. Source: Web of Science, Clarivate Analytics (data analyzed on June 21, 2024). Includes articles, reviews, and editorial matter. Figure 2. Impact of key topics as gauged from 2023 citations and number of articles published during 2021–2022. The linear plot represents a JIF of 19.3. This article references 4 other publications. This article has not yet been cited by other publications. Figure 1. Roller-coaster ride with JIFs of a few selected energy journals during a five-year period. Comparison of (A) JIF values and (B) Normalized JIF values (normalized to 2019 value). The shaded region in (B) shows 10% variation from the 2019 value. Figure 2. Impact of key topics as gauged from 2023 citations and number of articles published during 2021–2022. The linear plot represents a JIF of 19.3. This article references 4 other publications.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Intimate Protective Layer via Lithiation Sintering for All-Solid-State Lithium Metal Batteries 通过锂化烧结技术为全固态金属锂电池提供贴心保护层
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-12 DOI: 10.1021/acsenergylett.4c01103
Geung-Jong Lee, Dongkyu Lee, Seung Ho Choi, Chang Hoon Baek, Jae Yup Jung, Woosuk Cho, Won-Sub Yoon, Dong-Joo Yoo, Ji-Sang Yu
{"title":"Intimate Protective Layer via Lithiation Sintering for All-Solid-State Lithium Metal Batteries","authors":"Geung-Jong Lee, Dongkyu Lee, Seung Ho Choi, Chang Hoon Baek, Jae Yup Jung, Woosuk Cho, Won-Sub Yoon, Dong-Joo Yoo, Ji-Sang Yu","doi":"10.1021/acsenergylett.4c01103","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01103","url":null,"abstract":"In the pursuit of safer and more energy-dense battery systems, all-solid-state lithium metal batteries (ASSLMBs) have emerged as an attractive alternative with significant potential to conventional lithium-ion batteries (LIBs). However, numerous protective layers proposed to passivate the Li metal anodes suffer from low ionic conductivity and high local current density due to interfacial contact loss. Here, we address these challenges by developing an intimate protective layer with high ionic conductivity, synthesized through a pressure-induced lithiation sintering process. During lithiation, nanosized Si (nSi) particles expand and sinter together into a compact layer with intimate contact. This process yields a pore-free nSi-Li layer that integrates seamlessly with the electrolyte layer. The unique morphology of this layer results in reduced overpotential and local current density, enabling stable and reversible 2-dimensional lithium plating and stripping. These findings highlight the importance of morphological effects in protective layers, thus marking a significant step forward in solid-state battery technology.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Entropy Electrolytes for Lithium-Ion Batteries 锂离子电池的高熵电解质
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-11 DOI: 10.1021/acsenergylett.4c01358
Qidi Wang, Jianlin Wang, Jouke R. Heringa, Xuedong Bai, Marnix Wagemaker
{"title":"High-Entropy Electrolytes for Lithium-Ion Batteries","authors":"Qidi Wang, Jianlin Wang, Jouke R. Heringa, Xuedong Bai, Marnix Wagemaker","doi":"10.1021/acsenergylett.4c01358","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01358","url":null,"abstract":"One of the primary challenges to improving lithium-ion batteries lies in comprehending and controlling the intricate interphases. However, the complexity of interface reactions and the buried nature make it difficult to establish the relationship between the interphase characteristics and electrolyte chemistry. Herein, we employ diverse characterization techniques to investigate the progression of electrode–electrolyte interphases, bringing forward opportunities to improve the interphase properties by what we refer to as high-entropy solvation disordered electrolytes. Through formulating an electrolyte with a regular 1.0 M concentration that includes multiple commercial lithium salts, the solvation interaction with lithium ions alters fundamentally. The participation of several salts can result in a weaker solvation interaction, giving rise to an anion-rich and disordered solvation sheath despite the low salt concentration. This induces a conformal, inorganic-rich interphase that effectively passivates electrodes, preventing solvent co-intercalation. Remarkably, this electrolyte significantly enhances the performance of graphite-containing anodes paired with high-capacity cathodes, offering a promising avenue for tailoring interphase chemistries.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","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 Lithium Salt on Lithium-Mediated Ammonia Synthesis 锂盐对锂介导的氨合成的影响
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-11 DOI: 10.1021/acsenergylett.4c01655
Xianbiao Fu, Shaofeng Li, Niklas H. Deissler, Jon Bjarke Valbæk Mygind, Jakob Kibsgaard, Ib Chorkendorff
{"title":"Effect of Lithium Salt on Lithium-Mediated Ammonia Synthesis","authors":"Xianbiao Fu, Shaofeng Li, Niklas H. Deissler, Jon Bjarke Valbæk Mygind, Jakob Kibsgaard, Ib Chorkendorff","doi":"10.1021/acsenergylett.4c01655","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01655","url":null,"abstract":"Recently, the lithium-mediated nitrogen reduction reaction (Li-NRR) has emerged as a promising approach for electrochemical ammonia synthesis, facilitating more localized production. However, the systematic investigation of lithium salts in this process, especially when coupled with a hydrogen oxidation reaction (HOR) at the anode side in a continuous-flow reactor, remains largely underexplored. This study systematically investigates the effects of various lithium salts on Li-NRR selectivity and efficiency in a continuous-flow reactor coupled with the HOR at the anode. Among the evaluated salts, lithium tetrafluoroborate (LiBF<sub>4</sub>) demonstrated the highest NH<sub>3</sub> selectivity of 61% under ambient conditions. Conversely, lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) showed a significantly lower Faradaic efficiency (FE) of 18%, due to its decomposition and subsequent sulfur poisoning of the HOR catalysts. These findings highlight the importance of selecting appropriate lithium salts and establishing critical design principles for more efficient and stable electrolytes for Li-NRR and advancing sustainable ammonia synthesis.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insights into the Critical Materials Supply Chain of the Battery Market for Enhanced Energy Security 洞察电池市场的关键材料供应链,增强能源安全
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-10 DOI: 10.1021/acsenergylett.4c01300
Marm Dixit, Brett Witherspoon, Nitin Muralidharan, Matthew M. Mench, Chol-Bum M. Kweon, Yang-Kook Sun, Ilias Belharouak
{"title":"Insights into the Critical Materials Supply Chain of the Battery Market for Enhanced Energy Security","authors":"Marm Dixit, Brett Witherspoon, Nitin Muralidharan, Matthew M. Mench, Chol-Bum M. Kweon, Yang-Kook Sun, Ilias Belharouak","doi":"10.1021/acsenergylett.4c01300","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01300","url":null,"abstract":"This paper delves into the critical materials supply chain of the battery market with an emphasis on long-term energy security. The study recognizes electric vehicle battery packs as reservoirs of “locked reserves” for extended periods, typically 10 years or more. A comprehensive understanding of material flows and end-of-life battery management is essential to establish a sustainable, durable, and secure domestic supply chain for lithium-ion batteries. In addressing these concerns, the paper introduces a metric designed to assess the “per mile” consumption of critical reserves called “Materials Per Gallon-Electric (MPGe)”. The study emphasizes the immediate need for critical materials to meet the accelerated demand for large-scale electric vehicle adoption in the short term. Furthermore, the paper also emphasizes the urgent need to advance recycling technologies to recover the critical mineral reserves “locked” in end-of-life battery packs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Visible-Transparent Electron-Selective Self-Assembled Monolayer for Electron-Transport-Layer-Free High-Efficiency and Flexible Organic Solar Cells 用于无电子传输层高效柔性有机太阳能电池的可见-透明电子选择性自组装单层
IF 22 1区 材料科学
ACS Energy Letters Pub Date : 2024-07-10 DOI: 10.1021/acsenergylett.4c01451
Seonghun Jeong, Jiyeon Oh, Jeewon Park, Yongjoon Cho, Sungwoo Jung, Seunglok Lee, Jaeyeong Park, Changduk Yang
{"title":"Visible-Transparent Electron-Selective Self-Assembled Monolayer for Electron-Transport-Layer-Free High-Efficiency and Flexible Organic Solar Cells","authors":"Seonghun Jeong, Jiyeon Oh, Jeewon Park, Yongjoon Cho, Sungwoo Jung, Seunglok Lee, Jaeyeong Park, Changduk Yang","doi":"10.1021/acsenergylett.4c01451","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c01451","url":null,"abstract":"Compared to hole-selective ones, the availability of electron-selective self-assembled monolayers (<i>es</i>-SAMs) remains limited, with little knowledge regarding their autonomous application without metal-oxide-based electron-transport layers (ETLs) in organic solar cells (OSCs). We demonstrate an “ETL-free” inverted OSC that exhibits a power conversion efficiency (PCE) of 17.35% by utilizing BPD-3PA among newly developed visible-transparent <i>es</i>-SAMs. This PCE exceeds that of the ZnO-based control device, representing among the highest PCEs for ETL-free inverted OSCs. The enhanced performance of the BPD-3PA-based device is attributed to improved charge-transport/-extraction properties and reduced recombination loss, as originated from interfacial engineering-driven improvements in dipoles and surface wettability/contact, in addition to favorable energy-level alignment and work function. Furthermore, the BPD-3PA-based device on a flexible substrate demonstrates exceptional 47% PCE retention after a 5000-cycle bending test, far exceeding 1.5% PCE retention of the ZnO-based one. Our results highlight the great potential of BPD-3PA for high-efficiency, flexible ETL-free devices in forthcoming SC technologies.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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