ACS Energy Letters 最新文献_第4页

Molecular Recombination Junction for Vacuum-Deposited Perovskite/Silicon Two-Terminal Tandem Solar Cells

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-17 DOI: 10.1021/acsenergylett.5c00155

Sofía Chozas-Barrientos, Abhyuday Paliwal, Federico Ventosinos, Cristina Roldán-Carmona, Lidón Gil-Escrig, Vladimir Held, Perrine Carroy, Delfina Muñoz, Henk J. Bolink

{"title":"Molecular Recombination Junction for Vacuum-Deposited Perovskite/Silicon Two-Terminal Tandem Solar Cells","authors":"Sofía Chozas-Barrientos, Abhyuday Paliwal, Federico Ventosinos, Cristina Roldán-Carmona, Lidón Gil-Escrig, Vladimir Held, Perrine Carroy, Delfina Muñoz, Henk J. Bolink","doi":"10.1021/acsenergylett.5c00155","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c00155","url":null,"abstract":"The use of commercial, Czochralski-grown silicon wafers as bottom cells in two-terminal perovskite/silicon tandem configurations often leads to defects in the top perovskite absorber due to their rough surfaces, featuring μm-sized pyramids and saw damages. Most recombination junctions in two-terminal tandem cells employ high conductive indium tin oxide which increases the effect of local shunts in the top cell by connecting them. We use Suns–VOC with selective illumination and external quantum efficiency measurements to identify these shunts. Additionally, we show that a molecular recombination junction composed of an n-doped C60 layer and a p-doped conjugated arylamine layer alleviates the effect of the shunts in the top cell, which we attribute to the lower lateral conductivity of the organic layers. This enables us to prepare two-terminal tandem devices using fully evaporated top cells on Czochralski textured silicon heterojunction cells with VOCs of up to 1.84 V and efficiencies above 22%.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"24 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635389","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

Recrystallization-Driven Quasi-Spherical Prussian Blue Analogs with High Tap Density and Crystallinity for Sodium-Ion Batteries

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-17 DOI: 10.1021/acsenergylett.5c00080

Siwei Fan, Yun Gao, Yang Liu, Li Li, Lingling Zhang, Zhiming Zhou, Shu-Lei Chou, Xueting Liu, Yue Shen, Yunhui Huang, Yun Qiao

{"title":"Recrystallization-Driven Quasi-Spherical Prussian Blue Analogs with High Tap Density and Crystallinity for Sodium-Ion Batteries","authors":"Siwei Fan, Yun Gao, Yang Liu, Li Li, Lingling Zhang, Zhiming Zhou, Shu-Lei Chou, Xueting Liu, Yue Shen, Yunhui Huang, Yun Qiao","doi":"10.1021/acsenergylett.5c00080","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c00080","url":null,"abstract":"Prussian blue analogs (PBAs) are widely applicable as cathode materials due to their straightforward synthesis procedures, low cost, and considerable theoretical capacity. However, structural defects and low tap density pose substantial challenges to their commercial application. Herein, we propose a recrystallization-driven strategy to synthesize monoclinic binary hexacyanoferrate (CFHCF) with high crystallinity and a remarkably high tap density of 0.992 g cm–3. Moreover, the detailed process of quasi-spherical morphology evolution and defect repair is systematically investigated during recrystallization. Furthermore, various in situ and ex situ techniques are employed to reveal the origin of the high specific capacity and the structural evolution mechanism. Additionally, the designed CFHCF//HC pouch cell demonstrates satisfactory capacity retention over 250 cycles and successfully powers a toy platform for flag raising and lowering. Notably, this recrystallization-driven strategy offers valuable insights into the synthesis and commercial applications of highly crystallized PBAs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"183 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635407","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

Correction to “Toward High-Capacity Li–S Solid-State Batteries: The Role of Partial Ionic Transport in the Catholyte”

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-16 DOI: 10.1021/acsenergylett.5c00580

Henry M. Woolley, Martin Lange, Elina Nazmutdinova, Nella M. Vargas-Barbosa

引用次数: 0

All-Climate and Nonflammable Electrolyte with a Strong Anion–Solvent Interaction for High-Performance Lithium Metal Batteries

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-16 DOI: 10.1021/acsenergylett.4c03307

Chi Ma, Chuankai Fu, Sheng Chang, Xing Xu, Guangxiang Zhang, Ziwei Liu, Hua Huo, Lishuang Fan, Geping Yin, Yulin Ma

{"title":"All-Climate and Nonflammable Electrolyte with a Strong Anion–Solvent Interaction for High-Performance Lithium Metal Batteries","authors":"Chi Ma, Chuankai Fu, Sheng Chang, Xing Xu, Guangxiang Zhang, Ziwei Liu, Hua Huo, Lishuang Fan, Geping Yin, Yulin Ma","doi":"10.1021/acsenergylett.4c03307","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c03307","url":null,"abstract":"Reinforced security and temperature tolerance are key prerequisites for the practical application of lithium metal batteries (LMBs). Achieving an optimal balance between maintaining a stable interface at a high temperature and ensuring rapid ion transport under a low temperature remains a critical challenge. Herein, an all-climate nonflammable electrolyte comprised of triethyl phosphate (TEP), lithium bis((trifluoromethyl)sulfonyl) azide (LiTFSI), and lithium nitrate (LiNO3) is proposed. The strong interaction between NO3– and TEP broadens the melting point of the electrolyte to −91.5 °C. A well-regulated lithium-ion solvation structure with low desolvation energy contributes to the formation of a durable inorganic–organic hybrid solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI), thereby enhancing the interfacial compatibility significantly. Consequently, the LMBs with the optimized TEP-based electrolyte demonstrate remarkable electrochemical performance in a wide temperature range of −60∼100 °C. The valuable insights gained from this work can offer theoretical guidance for developing wide-temperature electrolytes and high-performance LMBs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"17 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143635410","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

Correlation, Causation and Comparison

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-14 DOI: 10.1021/acsenergylett.5c00631

Prashant V. Kamat

引用次数: 0

Time-Resolved Fourier Transform Infrared Spectroelectrochemical Investigation of Nitrate Reduction to Ammonia

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-14 DOI: 10.1021/acsenergylett.5c00553

David Kumar Yesudoss, Bright Ngozichukwu, Ibrahima Gning, Balla D. Ngom, Abdoulaye Djire

{"title":"Time-Resolved Fourier Transform Infrared Spectroelectrochemical Investigation of Nitrate Reduction to Ammonia","authors":"David Kumar Yesudoss, Bright Ngozichukwu, Ibrahima Gning, Balla D. Ngom, Abdoulaye Djire","doi":"10.1021/acsenergylett.5c00553","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c00553","url":null,"abstract":"This study explores the electrocatalytic nitrate reduction reaction (NO3–RR) using nitride-based two-dimensional Ti2NTx MXene (also known as MNene) synthesized via O2-assisted molten salt fluoride etching and its parent Ti2AlN MAX phase. Ti2NTx MNene achieved an ammonia (NH3) yield rate of ∼550 μmol h–1 g–1 with a Faradaic efficiency (FE) of ∼80%. Unexpectedly, the Ti2AlN MAX phase exhibited an even higher NH3 yield rate of ∼800 μmol h–1 g–1 at a comparable FE, despite its lower surface area and being traditionally considered a poor electrocatalyst. The enhanced performance of the MAX phase is likely due to −OH functionalization under alkaline conditions, leading to enhanced reaction kinetics. Postelectrolysis analyses, including Raman spectroscopy, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), confirmed no significant changes in crystallinity but indicated surface chemical changes. Control experiments with blank electrolytes and isotopically labelled 15NO3– substantiate that NH3 originates exclusively from nitrate reduction on the surface terminations. Time-resolved in situ spectroelectrochemical studies identified nitrite (NO2–) reduction to further intermediates as the rate-determining step. These findings not only challenge the conventional perception of MAX phases as poor electrocatalysts but also underscore the potential of nitride-based MAX and MXene materials as robust and efficient electrocatalysts for the NO3–RR.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619054","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

Unlocking the Capacity and Stability Limitations of Perovskite Electrodes and Achieving the Design of a Flame-Retardant Supercapacitor Through the “Tree Canopy” Structure

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-14 DOI: 10.1021/acsenergylett.5c00154

Jiahao He, Yang Zhou, Shibo Wu, Jingrui Cao, Bin Han, Zhiqiang Wang, Zaizai Tong, Muslum Demir, Pianpian Ma

{"title":"Unlocking the Capacity and Stability Limitations of Perovskite Electrodes and Achieving the Design of a Flame-Retardant Supercapacitor Through the “Tree Canopy” Structure","authors":"Jiahao He, Yang Zhou, Shibo Wu, Jingrui Cao, Bin Han, Zhiqiang Wang, Zaizai Tong, Muslum Demir, Pianpian Ma","doi":"10.1021/acsenergylett.5c00154","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c00154","url":null,"abstract":"The present study depicts innovative electrode and electrolyte designs to achieve advanced supercapacitor performance and stability. The mechanism of how the electronic structure of substitution ions impacts the phase structure and properties of SrCoO3−δ was in-depth elucidated, overcoming the inherent trade-off between specific capacity and cycle stability in perovskite materials. The as-prepared SrCo0.925Sc0.075O3−δ electrode achieves a high capacity of 467.7 C g–1 (129.92 mAh g–1) at 1 A g–1, with retention of 97.4% of its initial capacity after 10,000 cycles. Inspired by canopy structures, a “branch”-like dual-network 3D gel system was created and in situ integrated with the electrode as the “trunk”. This unique structure offers robust mechanical strength and flame retardancy, establishing an efficient conductive network. Devices featuring this design show electrochemical stability and flexibility, ensuring safe operation at extreme temperatures while balancing the stability and energy density. This research opens avenues for high-performance supercapacitors and quasi-solid-state gel batteries tailored applications.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"7 1","pages":""},"PeriodicalIF":22.0,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619053","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

Correlation, Causation and Comparison

IF 19.3 1区材料科学

ACS Energy Letters Pub Date : 2025-03-14 DOI: 10.1021/acsenergylett.5c0063110.1021/acsenergylett.5c00631

Prashant V. Kamat*,

引用次数: 0

Graded Cathode Design for Enhanced Performance of Sulfide-Based Solid-State Batteries

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2025-03-13 DOI: 10.1021/acsenergylett.4c03243

Eva Schlautmann, Janina Drews, Lukas Ketter, Martin A. Lange, Timo Danner, Arnulf Latz, Wolfgang G. Zeier

引用次数: 0

Fluorine-Free Electrolytes for Lithium Metal Batteries: Challenges and Opportunities in Solvation Structure and Interphase Design