ACS Energy Letters 最新文献_第8页

Intrinsic Defect Self-Compensation Enables Spectrum Narrowing of Uniform Alloyed Ag–In–Ga–S Quantum Dots 本征缺陷自补偿实现了均匀合金Ag-In-Ga-S量子点的谱窄化

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-07-12 DOI: 10.1021/acsenergylett.5c01454

Danni Yan, Huanyang Chen, Li Zhang, Yujia Luo, Yuhui Dong*, Yousheng Zou* and Haibo Zeng*,

{"title":"Intrinsic Defect Self-Compensation Enables Spectrum Narrowing of Uniform Alloyed Ag–In–Ga–S Quantum Dots","authors":"Danni Yan, Huanyang Chen, Li Zhang, Yujia Luo, Yuhui Dong*, Yousheng Zou* and Haibo Zeng*, ","doi":"10.1021/acsenergylett.5c01454","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c01454","url":null,"abstract":"Eco-friendly Ag–In–Ga–S (AIGS) quantum dots (QDs) are promising alternatives to toxic Pb/Cd-containing QDs due to their tunable emission, high photoluminescence quantum yield (PLQY), and solution processability. However, their intrinsic defect-driven broad emission limits applications in high-resolution displays. Herein, we report a synthesis of uniform alloyed AIGS QDs with narrow emission via defect self-compensation, circumventing intricate shell growth. Benefiting from the defect compensation of interstitial Ag (Agi) to Ag vacancy (VAg) under thermal activation, structural defects are significantly suppressed, achieving tunable emission with remarkably narrow full width at half-maximum (fwhm = 30–38 nm) and high PLQYs. The resulting quantum dot light-emitting diodes (QLEDs) exhibit electroluminescence with fwhm < 40 nm, validating high-purity display compatibility. The simplified approach and mechanistic clarity advance the production of high-color-purity AIGS QLEDs, offering a paradigm for narrow emission in eco-friendly I–III–VI QDs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 8","pages":"3755–3762"},"PeriodicalIF":18.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144806155","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

Synchronized Breathing in Anion-Derived Interphases 阴离子衍生间期同步呼吸

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-07-12 DOI: 10.1021/acsenergylett.5c01756

Sha Tan*, Kangxuan Xia, Nan Wang, Dean Yen, Zhiao Yu, Muhammad Mominur Rahman, Xiaobo Chen, Yuelang Chen, Xiao-Qing Yang, Jie Xiao, Jun Liu, Yi Cui, Zhenan Bao and Enyuan Hu*,

{"title":"Synchronized Breathing in Anion-Derived Interphases","authors":"Sha Tan*, Kangxuan Xia, Nan Wang, Dean Yen, Zhiao Yu, Muhammad Mominur Rahman, Xiaobo Chen, Yuelang Chen, Xiao-Qing Yang, Jie Xiao, Jun Liu, Yi Cui, Zhenan Bao and Enyuan Hu*, ","doi":"10.1021/acsenergylett.5c01756","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c01756","url":null,"abstract":"Anion-derived interphases are crucial for extending the cycle life of lithium metal batteries. While their benefits are often attributed to crystalline inorganic species like LiF and Li2O, the role of amorphous inorganic species and the interplay between the anode-electrolyte interphase (SEI) and the cathode-electrolyte interphase (CEI) remain largely unexplored. In this study, we examine two model electrolyte systems─one with solvent-derived interphases and the other with anion-derived interphases─using advanced X-ray scattering and spectroscopy techniques. Our findings reveal that anion-derived interphases contain substantial amounts of amorphous inorganic species, leading to a unique synchronization of “breathing” between SEI and CEI. During charging, the SEI grows while the CEI shrinks; during discharging, these roles reverse. This distinctive interfacial behavior originates from the competition of deposition and dissolution of amorphous inorganics during cycling. The study highlights the unique role of amorphous inorganics in anion-derived interphases, providing new insights into improving battery performance and durability.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 8","pages":"3746–3754"},"PeriodicalIF":18.2,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144806154","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

IF 19.3 1区材料科学