ACS Energy Letters 最新文献_第6页

Substrate-Enhanced Atomic Layer Deposition of Lithium Niobate on NMC Cathodes for Sulfide-Based All-Solid-State Batteries 硫化基全固态电池NMC阴极上衬底增强铌酸锂原子层沉积研究

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-28 DOI: 10.1021/acsenergylett.6c01988

Jaka Šivavec, Léo Lapeyre, Daniele Casari, Mariia Svyrydenko, Matthias Klimpel, Roland Widmer, Patrice Raynaud, Johann Michler, Ivo Utke, Kostiantyn V. Kravchyk, Maksym V. Kovalenko

{"title":"Substrate-Enhanced Atomic Layer Deposition of Lithium Niobate on NMC Cathodes for Sulfide-Based All-Solid-State Batteries","authors":"Jaka Šivavec, Léo Lapeyre, Daniele Casari, Mariia Svyrydenko, Matthias Klimpel, Roland Widmer, Patrice Raynaud, Johann Michler, Ivo Utke, Kostiantyn V. Kravchyk, Maksym V. Kovalenko","doi":"10.1021/acsenergylett.6c01988","DOIUrl":"10.1021/acsenergylett.6c01988","url":null,"abstract":"Maintaining a stable interface between sulfide solid-state electrolytes and layered oxide cathodes remains a major challenge limiting the performance of all-solid-state batteries. Atomic layer deposition (ALD) of lithium niobate (LNO) on layered oxide cathodes is widely used to stabilize these interfaces, yet the early-stage growth of LNO remains poorly understood and strongly influenced by precursor chemistry. Here, we demonstrate substrate-enhanced ALD growth of LNO on single-crystal LiNi0.82Mn0.07Co0.11O2 (NMC) achieved using commercial lithium–niobium precursor chemistry, enabling complete surface encapsulation with conformal LNO coatings thinner than 8 nm. The resulting ultrathin LNO coatings increase the discharge capacity of Li6PS5Cl-NMC all-solid-state batteries by up to 20% while maintaining good rate capability. The improved electrochemical performance is attributed to the suppressed electrochemical decomposition of the Li6PS5Cl solid-state electrolyte during cycling, as evidenced by X-ray photoelectron spectroscopy, highlighting the importance of controlling the early-stage ALD growth of LNO.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6737–6744"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149090808","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

Defect-Targeted Passivation Enabling Capacity Compensation of Hard Carbon Anodes for Sodium-Ion Batteries 钠离子电池硬碳阳极缺陷钝化实现容量补偿

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-15 DOI: 10.1021/acsenergylett.6c01903

Hang Li, Yutian Yang, Jiajun Wu, Jinghan Meng, Weihang Li, Ziyi Zhu, Shuang Zhou, Anqiang Pan

{"title":"Defect-Targeted Passivation Enabling Capacity Compensation of Hard Carbon Anodes for Sodium-Ion Batteries","authors":"Hang Li, Yutian Yang, Jiajun Wu, Jinghan Meng, Weihang Li, Ziyi Zhu, Shuang Zhou, Anqiang Pan","doi":"10.1021/acsenergylett.6c01903","DOIUrl":"10.1021/acsenergylett.6c01903","url":null,"abstract":"Hard carbon is an anode material for sodium-ion batteries, yet its performance is hindered by rapid capacity decay and insufficient rate capability. The challenges arise from uncontrolled defects, pore distribution, and interlayer spacing within the carbon framework. Herein, a defect-targeted passivation strategy is originally proposed that compensates the capacity of hard carbon anodes through precise control of defect types and distribution. Specifically, selective passivation of reactive edge defects suppresses parasitic reactions and irreversible Na+ consumption, while topological and compound defects provide reversible Na+ storage to boost diffusion kinetics. Benefiting from this strategy, the optimized hard carbon anodes deliver an operational temperature range (–50 to 60 °C), a reversible capacity of 405.7 mAh g–1, an initial Coulombic efficiency of 90.50%, a stabilized rate capability (up to 10 A g–1), and cycling stability. This work establishes a directional defect-engineering for concurrently boosting the rate capability and stability of hard carbon anodes.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6657–6668"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973919","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

Configurational-Entropy-Engineered Prussian Blue Analogue Cathodes for Low-Temperature Semi-solid-state H2 Batteries 低温半固态H2电池的配置熵工程普鲁士蓝模拟阴极

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-18 DOI: 10.1021/acsenergylett.6c01803

Xiuquan Chen, Yuhua Zhao, Simin Hong, Xiaodong Rang, Xiang Cui, Kostya S. Novoselov, Yajing Liu

{"title":"Configurational-Entropy-Engineered Prussian Blue Analogue Cathodes for Low-Temperature Semi-solid-state H2 Batteries","authors":"Xiuquan Chen, Yuhua Zhao, Simin Hong, Xiaodong Rang, Xiang Cui, Kostya S. Novoselov, Yajing Liu","doi":"10.1021/acsenergylett.6c01803","DOIUrl":"10.1021/acsenergylett.6c01803","url":null,"abstract":"Low-temperature proton transport kinetics remains a key limitation for rechargeable H2 batteries. Herein, we report a configurational-entropy-engineered K1.36Mn0.6Fe0.1Co0.1Ni0.1Cu0.1[Fe(CN)6]0.61·□0.39·1.2H2O (CEM0.6-PBA) cathode for semi-solid-state H2 batteries. Density functional theory calculations reveal that configurational entropy tailors the electronic structure, optimizes proton adsorption energetics, and lowers the proton migration barrier, thereby improving both the thermodynamics and kinetics of proton storage. In addition, an interconnected hydrogen-bonding network facilitates rapid proton transport under subzero conditions. As a result, the full cell delivers 155.9 mA h g–1 and 125.2 W h kg–1, with 71.9% capacity retention after 10,000 cycles. Notably, it exhibits outstanding low-temperature performance, delivering 157.9, 128.3, and 80.0 mA h g–1 at –10, –30, and –40 °C, respectively, operating down to –60 °C, and retaining 85.7 mA h g–1 after 2900 cycles at 0.3 A g–1 under –30 °C. This work establishes configurational-entropy engineering as an effective strategy for regulating proton-storage thermodynamics and kinetics in H2 batteries under extreme conditions.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6598–6606"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149003385","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

Pressure-Driven Performance and Thermal Safety Tradeoff in Solid-State Batteries 固态电池的压力驱动性能和热安全权衡

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-18 DOI: 10.1021/acsenergylett.6c02060

Arpan K. Sharma, Alvaro J. Miguel, Bairav S. Vishnugopi, Alex M. Bates, Nathan B. Johnson, John Hewson, Loraine Torres-Castro, Partha P. Mukherjee

{"title":"Pressure-Driven Performance and Thermal Safety Tradeoff in Solid-State Batteries","authors":"Arpan K. Sharma, Alvaro J. Miguel, Bairav S. Vishnugopi, Alex M. Bates, Nathan B. Johnson, John Hewson, Loraine Torres-Castro, Partha P. Mukherjee","doi":"10.1021/acsenergylett.6c02060","DOIUrl":"10.1021/acsenergylett.6c02060","url":null,"abstract":"Solid-state batteries (SSBs) offer high energy density and improved safety, but their performance is limited by poor particle contact and sluggish ion transport across solid–solid interfaces. External pressure improves electrochemical performance by enhancing interfacial contact and reducing resistance; however, its impact on thermal behavior and safety remains unclear. Here, we investigate how pressure influences the thermal response of composite solid-state cathodes and its implications for cell-level safety. Over 0–70 MPa, increasing pressure enhances capacity but induces a nonmonotonic thermal response governed by the balance between reduced heat generation and extended discharge duration. Pressure consistently improves thermal efficiency by lowering the heat-to-capacity ratio. Incorporating a self-heating onset criterion, we quantify thermal runaway risk and identify performance-safety trade-offs that evolve with pressure, C-rate, and cathode thickness. These results provide design guidelines for pressure-optimized, thermally stable SSBs for high-power and high-energy applications.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6755–6763"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149003386","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

Managing Electron–Phonon Coupling for Single-Photon Upconversion in Perovskite Quantum Dots 钙钛矿量子点中单光子上转换的电子-声子耦合管理

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-26 DOI: 10.1021/acsenergylett.6c02664

Jie Gao, Hongzhe Du, Dandan Cao, Dongxu Zhao, Yi Wang, Xi-Cheng Ai, Jian-Ping Zhang

{"title":"Managing Electron–Phonon Coupling for Single-Photon Upconversion in Perovskite Quantum Dots","authors":"Jie Gao, Hongzhe Du, Dandan Cao, Dongxu Zhao, Yi Wang, Xi-Cheng Ai, Jian-Ping Zhang","doi":"10.1021/acsenergylett.6c02664","DOIUrl":"10.1021/acsenergylett.6c02664","url":null,"abstract":"Perovskite quantum dots (PQDs) feature intriguing single-photon upconversion (SPUC) behavior, whereby anti-Stokes photoluminescence (PL) can be achieved under mild continuous-wave photoexcitation, enabling applications in optical refrigeration, background-free bioimaging, and upconversion photovoltaics. While the conventional (down-conversion) PL efficiency of PQDs can be enhanced to near-unity levels, precise control of phonon-assisted upconversion, the crucial process for SPUC-PL, remains a key challenge. Herein, we demonstrate a rational strategy to improve the upconversion efficiency in organic–inorganic hybrid PQDs compared to all-inorganic counterparts. Using temperature-dependent photoluminescence spectroscopy and femtosecond absorption spectroscopy, we reveal that this cation engineering increases the electron–phonon coupling strength by nearly threefold and shortens the upconversion time constant from 445 fs to below the temporal resolution limit of 120 fs. Consequently, the SPUC efficiency under continuous-wave photoexcitation is enhanced, leading to an average upconversion energy gain above 160 meV, which surpasses those for reported surface-engineered all-inorganic PQDs and II–VI QDs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6998–7005"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149049984","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

Regulating Interfacial Charge and Electric Double-Layer Structure by Choline Cations for Low-Polarization Aqueous Zinc–Sulfur Batteries 胆碱阳离子调节低极化锌硫水电池界面电荷和双电层结构

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-02 DOI: 10.1021/acsenergylett.6c02074

Xiaolang Liu, Xiang Yu, Gaoxu Huang, Yuxi Yang, Runming Tao, Deyu Wang, Zhihong Liu, Jiyuan Liang

{"title":"Regulating Interfacial Charge and Electric Double-Layer Structure by Choline Cations for Low-Polarization Aqueous Zinc–Sulfur Batteries","authors":"Xiaolang Liu, Xiang Yu, Gaoxu Huang, Yuxi Yang, Runming Tao, Deyu Wang, Zhihong Liu, Jiyuan Liang","doi":"10.1021/acsenergylett.6c02074","DOIUrl":"10.1021/acsenergylett.6c02074","url":null,"abstract":"Aqueous zinc–sulfur batteries (ZSBs) offer inherent safety, low cost, and impressive theoretical energy density, but their performance is limited by a low discharge plateau. Here, choline cations (Ch+) are introduced to regulate the charge distribution and electric double-layer (EDL) thickness at the S cathode interface, constructing a Zn2+-enriched thin EDL that effectively suppresses voltage polarization. Ch+ not only accelerates Zn2+ transport across the EDL but also enhances Zn2+ enrichment within the EDL region, synchronously optimizing ion transport and interfacial kinetics to promote efficient S to ZnS conversion. Under this condition, the ZSB delivers a specific capacity of 1684 mAh g–1, a low polarization of 0.31 V and an energy density of 1108 Wh kg–1 at 0.1 A g–1, while retaining 601 mAh g–1 over 1000 cycles at 10 A g–1. This work provides a guideline for achieving low polarization and overcoming the energy density bottleneck in ZSBs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6783–6792"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148885314","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

Powering Hyperscale AI Data Centers with Off-Grid Solar, Battery, and Hydrogen 用离网太阳能、电池和氢气为超大规模人工智能数据中心供电

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-16 DOI: 10.1021/acsenergylett.6c02598

Anil S. Bika, Brian P. Setzler, Paul F. Browning, Vrishank Mechineni, Rebekah J. Marks, Karen Y. Meidlinger, Ajay K. Prasad, Yushan Yan

{"title":"Powering Hyperscale AI Data Centers with Off-Grid Solar, Battery, and Hydrogen","authors":"Anil S. Bika, Brian P. Setzler, Paul F. Browning, Vrishank Mechineni, Rebekah J. Marks, Karen Y. Meidlinger, Ajay K. Prasad, Yushan Yan","doi":"10.1021/acsenergylett.6c02598","DOIUrl":"10.1021/acsenergylett.6c02598","url":null,"abstract":"Artificial intelligence (AI) data centers are emerging as a major source of electricity demand, driving interest in renewable-powered and off-grid energy systems as grid interconnection delays, generator shortages, and infrastructure constraints complicate high load factor operation. In this Perspective, we model a 1-GW off-grid solar-powered AI data center and show that battery-only systems exhibit rapid cost escalation at high load factor because of solar and battery overbuild, curtailment, and underutilized storage capacity. In contrast, battery + hydrogen systems suppress this behavior by allowing batteries to manage daily fluctuations, while hydrogen provides long-duration and seasonal energy storage through underground hydrogen storage. Sensitivity analysis further shows that the economic advantage of battery + hydrogen architectures persists across a wide range of hydrogen subsystem costs. More broadly, this Perspective suggests that high-load-factor AI data centers may represent an early commercialization pathway for hydrogen-based seasonal energy infrastructure.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6439–6445"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973831","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

Triplet or Charge-Separated State? Distinguishing Long-Lived, Photogenerated Electronic States in SWCNT/MoS2 Heterojunctions 三重态还是电荷分离态？在swcnts /MoS2异质结中区分长寿命、光生电子态

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-02 DOI: 10.1021/acsenergylett.6c01923

Leo Romanetz, M. Alejandra Hermosilla-Palacios, Debjit Ghoshal, Obadiah G. Reid, Jeffrey L. Blackburn

{"title":"Triplet or Charge-Separated State? Distinguishing Long-Lived, Photogenerated Electronic States in SWCNT/MoS2 Heterojunctions","authors":"Leo Romanetz, M. Alejandra Hermosilla-Palacios, Debjit Ghoshal, Obadiah G. Reid, Jeffrey L. Blackburn","doi":"10.1021/acsenergylett.6c01923","DOIUrl":"10.1021/acsenergylett.6c01923","url":null,"abstract":"Single-walled carbon nanotubes (SWCNTs) and their interfaces with an array of materials are promising platforms for next-generation energy-harvesting and conversion devices. Yet the challenge of identifying the excited-state optical spectra of electronic states is a barrier to evaluating their potential for those applications. Here, we use photoinduced absorption-detected magnetic resonance (PADMR) spectroscopy to provide unambiguous assignments in the near-infrared (NIR) photoinduced absorption spectrum of (6,5) SWCNT/MoS2 heterojunctions. Driving the distinguishable magnetic resonance transitions of weakly magnetic dipole-coupled charge separated states versus SWCNT-localized triplets shows that the NIR-induced absorption peak that is bathochromically shifted from the first exciton bleach corresponds solely to separated charges. Triplet excited-state absorption is assigned at higher energy. Signatures for the interfacial charge-separated state and triplet states are stronger in the bilayer than in the neat nanotubes, revealing a charge recombination mechanism across the SWCNT/MoS2 interface that forms spin-polarized triplet states on the SWCNTs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6680–6689"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148885312","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

Intelligent Response and Dynamic Stress Equilibrium Structure Endow Lithium-Rich Oxide Cathodes with Long Cycle Life 智能响应和动态应力平衡结构赋予富锂氧化物阴极长循环寿命

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-02 DOI: 10.1021/acsenergylett.6c02095

Yufa Zhou, Shengnan He, Rui Zhang, Shaowu Lai, Yaxin Pu, Chenchen Li, Xu Xue, Chao Zheng, Zhijun Wu, Jiantuo Gan, Wubin Du, Yanxia Liu, Mingchang Zhang, Yaxiong Yang, Hongge Pan

{"title":"Intelligent Response and Dynamic Stress Equilibrium Structure Endow Lithium-Rich Oxide Cathodes with Long Cycle Life","authors":"Yufa Zhou, Shengnan He, Rui Zhang, Shaowu Lai, Yaxin Pu, Chenchen Li, Xu Xue, Chao Zheng, Zhijun Wu, Jiantuo Gan, Wubin Du, Yanxia Liu, Mingchang Zhang, Yaxiong Yang, Hongge Pan","doi":"10.1021/acsenergylett.6c02095","DOIUrl":"10.1021/acsenergylett.6c02095","url":null,"abstract":"Lithium-rich oxides (LROs) deliver an energy density of over 1000 Wh kg−1 for lithium-ion battery cathode applications, yet cycling-induced stress accumulation triggers structural degradation and poor cyclic stability. Herein, hierarchical twin structures are prefabricated in LROs. Prestress at twin boundaries forms interlaced stress networks to adaptively accommodate tensile/compressive strains upon cycling and dissipate localized stress concentration. The self-adaptive twin structure tolerates cyclic volume fluctuation, preserving the layered framework against irreversible spinel/rock-salt phase transition during long-term structural relaxation. The twin-modified LRO retains 94.98% capacity after 500 cycles (1 C) and 80.79% after 800 cycles, with 155.31 mAh g−1 at 5 C. The pouch cell delivers 12.59 Ah discharge capacity and maintains 84.83% capacity after 49 cycles. This work offers a strategy to tune electrochemo-mechanical properties for designing cathode materials.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6764–6775"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148885313","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

Unraveling Thermal Accumulation in Perovskite/Silicon Tandems: Structure- and Material-Driven Heating in SHJ, TOPCon, and TBC Bottom Cells 解开钙钛矿/硅串联中的热积累：SHJ， TOPCon和TBC底部电池中结构和材料驱动的加热

IF 17.5 1区材料科学

ACS Energy Letters Pub Date : 2026-10-09 Epub Date: 2026-09-07 DOI: 10.1021/acsenergylett.6c01614

Kaiyue Li, Xuan Chang, Xueliang Yang, Yanfeng Li, Jinchao Shi, Mengmeng Wu, Bo Yu, Huan Yang, Haishun Gao, Yuke Ren, Guoang Li, Shuaihang Hou, Hang Weng, Bingbing Chen, Dehua Yang, Shufang Wang, Jianhui Chen

{"title":"Unraveling Thermal Accumulation in Perovskite/Silicon Tandems: Structure- and Material-Driven Heating in SHJ, TOPCon, and TBC Bottom Cells","authors":"Kaiyue Li, Xuan Chang, Xueliang Yang, Yanfeng Li, Jinchao Shi, Mengmeng Wu, Bo Yu, Huan Yang, Haishun Gao, Yuke Ren, Guoang Li, Shuaihang Hou, Hang Weng, Bingbing Chen, Dehua Yang, Shufang Wang, Jianhui Chen","doi":"10.1021/acsenergylett.6c01614","DOIUrl":"10.1021/acsenergylett.6c01614","url":null,"abstract":"Perovskite/silicon (PVK/Si) tandem solar cells approach 35% efficiency, while near-infrared (NIR)-induced thermal accumulation severely restricts their operational stability. This work reveals structural and material heating origins of three mainstream silicon bottom sub-cells: SHJ, TOPCon, and TBC. Under NIR irradiation, the SHJ bottom cell shows the highest steady-state temperature (65.2 °C) and maximum efficiency loss (7.91% at 150 °C) due to its rear texture extending the NIR optical path and low-thermal-conductivity ITO/a-Si:H layers. In contrast, the TBC bottom sub-cell with a planar rear surface and high-thermal-conductivity SixNy/poly-Si stack presents the weakest heat buildup and best stability with only 5.86% PCE decay. IEC-standard long-term thermal aging tests confirm the serious performance degradation of SHJ bottom sub-cell. COMSOL simulations validate our findings in both 2T and 4T tandem configurations. This work offers useful references for thermally driven bottom-cell selection among the studied architectures, toward efficient, stable, and industrially viable PVK/Si tandem solar cells.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"11 10","pages":"6525–6536"},"PeriodicalIF":17.5,"publicationDate":"2026-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148973159","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