Advanced Energy Materials最新文献_第3页

Electrochemically Driven Refrigeration Based on Dissolution–Crystallization Cycle of Redox-Active Salts 基于氧化还原活性盐溶解-结晶循环的电化学驱动制冷

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-07-17 DOI: 10.1002/aenm.71304

Yifan Zhang, Pei Liu, Yilin Zeng, Xuan Cai, Linfeng Wang, Huaiyu Ke, Xue Long, Hua Jiang, Wendong Yang, Zuoxuan Gan, Jiabao Sun, Jia Li, Jiangjiang Duan

{"title":"Electrochemically Driven Refrigeration Based on Dissolution–Crystallization Cycle of Redox-Active Salts","authors":"Yifan Zhang, Pei Liu, Yilin Zeng, Xuan Cai, Linfeng Wang, Huaiyu Ke, Xue Long, Hua Jiang, Wendong Yang, Zuoxuan Gan, Jiabao Sun, Jia Li, Jiangjiang Duan","doi":"10.1002/aenm.71304","DOIUrl":"10.1002/aenm.71304","url":null,"abstract":"<div>\u0000 \u0000 Developing energy-efficient and environmentally sustainable refrigeration technologies is critically important for mitigating climate change. Here, we report an electrochemically driven dissolution–crystallization refrigeration cycle (EDCR), a liquid-state electrochemical cooling concept in which cooling is generated by the endothermic dissolution of electrochemically regenerated redox-active salts. Unlike conventional electrochemical refrigeration, where the cooling effect arises directly from endothermic redox reactions and is therefore partly offset by Joule heating, EDCR spatially separates electrochemical regeneration from dissolution-based cooling. The EDCR achieves a maximum temperature drop of 5.65 K and a maximum coefficient of performance of up to 15.51 under ideal condition without heat loss, corresponding to a relative Carnot efficiency of 29.8% at room temperature. This proof-of-concept study establishes EDCR as a promising hydrofluorocarbon-free refrigeration strategy and provides a new route for exploring liquid-state electrochemical cooling cycle.\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459957","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

Ion-Adaptive Molecular Structure Facilitates Mg-Ion Dynamic for High-Capacity Aqueous Magnesium-Ion Batteries 离子自适应分子结构促进高容量水镁离子电池的Mg -离子动力学

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-08-22 DOI: 10.1002/aenm.71364

Jiawen Wang, Jing Geng, Kai Du, Mingshan Han, Yuxiang Hu, Zhigang Zou

{"title":"Ion-Adaptive Molecular Structure Facilitates Mg-Ion Dynamic for High-Capacity Aqueous Magnesium-Ion Batteries","authors":"Jiawen Wang, Jing Geng, Kai Du, Mingshan Han, Yuxiang Hu, Zhigang Zou","doi":"10.1002/aenm.71364","DOIUrl":"10.1002/aenm.71364","url":null,"abstract":"<div>\u0000 \u0000 Aqueous magnesium-ion batteries (AMIBs) have emerged as promising energy storage systems owing to their intrinsic safety, high energy density, and cost-effectiveness. However, the intercalation of high-charge-density Mg2+ usually leads to irreversible structural degradation toward conventional electrodes with low practical capacity and inferior stability. To overcome the inherent lattice stress caused by Mg-ion, we investigated a series of flexible organic molecules (FOMs), and for the first time proposed a novel ion-adaptive strategy, achieving a high-performance FOM with modulated molecular steric hindrance, high practical capacity, and robust stability in AMIBs. In contrast with ever-increasing lattice stress with successive Mg-ion intercalation in conventional electrode, the subsequent ion intercalation reduced the stress by facilitated ion-storage in the optimized ion-adaptive FOM, such as tribenzoquinoxaline-5,10-dione (3BQ), with ultimately improved practical capacity (332.1 mAh g−1 at 1.0 A g−1), ranking among the highest capacity in AMIBs to date. Furthermore, the expanded planar architecture confers enhanced cycling stability on the ion-adaptive 3BQ, maintaining a high specific capacity of 196.7 mAh g−1 even after 7,000 cycles at 10.0 A g−1. The novel ion-adaptive strategy provides a new pathway to design high-capacity electrode materials in AMIBs and other multivalent-ion batteries.\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148768557","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

Weakening Local Chemical Bonds for Enhanced Thermoelectric Performance in YbMg2Sb2 Zintl Compounds 弱化局部化学键增强ybmg2sb2zintl化合物的热电性能

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-08-30 DOI: 10.1002/aenm.71529

Ming Liu, Donglin Yuan, Xiaotian Zhang, Hong Chen, Muchun Guo, Jiong Yang, Pengyuan Zhang, Hao Wu, Qinyong Zhang, Yu-Ke Zhu, Xingyan Dong, Yueyang Yang, Fengkai Guo, Zihang Liu, Bin Wei, Yuan Yu, Jiehe Sui

{"title":"Weakening Local Chemical Bonds for Enhanced Thermoelectric Performance in YbMg2Sb2 Zintl Compounds","authors":"Ming Liu, Donglin Yuan, Xiaotian Zhang, Hong Chen, Muchun Guo, Jiong Yang, Pengyuan Zhang, Hao Wu, Qinyong Zhang, Yu-Ke Zhu, Xingyan Dong, Yueyang Yang, Fengkai Guo, Zihang Liu, Bin Wei, Yuan Yu, Jiehe Sui","doi":"10.1002/aenm.71529","DOIUrl":"10.1002/aenm.71529","url":null,"abstract":"<div>\u0000 \u0000 Alloying is a well-established strategy for reducing lattice thermal conductivity (κL) and enhancing thermoelectric performance of materials, typically explained by the Klemens model, which describes the point-defect phonon scattering via mass and size contrasts. Yet, in certain isovalent alloyed thermoelectrics, we observe an anomalously low κL that falls below Klemens model predictions. Here, using YbMg2Sb2 as a model system, we show that alloying Mg with isovalent Zn or Cd induces a substantial reduction in κL beyond that attributable to mass and size effects of the dopants alone. Density-functional-theory calculations demonstrate that this stems from weakened local chemical bonds, which soften and slow both acoustic and optical phonons. Reduced interatomic force constants also lead to avoided crossing, further suppressing acoustic phonon propagation. Deformation electron density analyses reveal that the weak Zn-Sb and Cd-Sb bonds arise from delocalized electrons within Zn2Sb2 and Cd2Sb2 rhomboid rings. Benefiting from this pronounced κL reduction and an enhanced density-of-states effective mass by band alignment, Cd-alloyed YbMg2Sb2 achieves a record-high ZT of 1.4 at 873 K. These findings highlight the critical role of chemical bonds in reducing κL and provide a design principle for enabling materials with ultralow thermal conductivity through local bond tailoring.\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853356","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

Molecular Design of Fluorinated Ester Electrolytes via Skeleton Regulation Enables Aggressive Cathode Chemistries in 5V‐Class Fast‐Charging Lithium‐Ion Batteries 通过骨架调节的氟化酯电解质的分子设计使5V级快速充电锂离子电池的阴极化学具有侵略性

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71705

Ruilin He, Meifeng Ou, Tong Zhang, Weirou Huang, Junhao Li, Qiao Zhang, Xueping Xiao, Yan Li, Fangfang Pan, Yu Yang, Jun Wang, Yonghong Deng, Guangzhao Zhang

{"title":"Molecular Design of Fluorinated Ester Electrolytes via Skeleton Regulation Enables Aggressive Cathode Chemistries in 5V‐Class Fast‐Charging Lithium‐Ion Batteries","authors":"Ruilin He, Meifeng Ou, Tong Zhang, Weirou Huang, Junhao Li, Qiao Zhang, Xueping Xiao, Yan Li, Fangfang Pan, Yu Yang, Jun Wang, Yonghong Deng, Guangzhao Zhang","doi":"10.1002/aenm.71705","DOIUrl":"https://doi.org/10.1002/aenm.71705","url":null,"abstract":"Lithium‐ion batteries can deliver higher energy densities when using high‐voltage cathodes such as LiNi 0.5 Mn 1.5 O 4 (LNMO), yet their practical application is hindered by the catalytic nature of high‐voltage cathode materials which usually cause electrolytes decomposition. Although the utilization of fluorinated carbonates as electrolyte solvent considerably inhibited the parasitic reaction at cathode side, the irrational fluorination often leads to the sluggish Li + transport which finally causes poor rate performance. Here, we design a family of trifluoromethyl‐substituted carboxylate esters as electrolyte solvents. We found that the spatial arrangement between the ‐CF 3 and the carbonyl group in these fluorinated esters is critical for regulating the electrolyte solvation structures. A short distance (α‐substitution) severely weakens the solvating power of the solvent, resulting in a substantial decrease in ionic conductivity, whereas an extended separation (γ‐substitution) compromises the oxidation resistance against high‐voltage cathodes. Only the trifluoromethylation at the β‐position yields optimal solvent (methyl 3,3,3‐trifluoropropionate, MTFP) that can simultaneously meets high‐voltage and fast‐charging requirements of LNMO||Gr cells when pairing with fluoroethylene carbonate and 1 M LiPF 6 . In such electrolyte, the Ah‐level LNMO||Gr pouch cells deliver 78% capacity retention at 6C charge/discharge rate (13.2 mA cm −2 ), and stably operate over 300 cycles at the high rate of 3C.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"3 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172625","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

Decoding Multiscale Degradation of Layered Cathodes in All-Solid-State Lithium Batteries: An Advanced Diagnostics-Driven Framework 解码全固态锂电池层状阴极的多尺度退化：一个先进的诊断驱动框架

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-09-02 DOI: 10.1002/aenm.71528

Dayakar Gandla, Inyoung Jang, Ashok Kumar Kakarla, Se Hwan Park, Junghyun Choi, Dongsoo Lee

{"title":"Decoding Multiscale Degradation of Layered Cathodes in All-Solid-State Lithium Batteries: An Advanced Diagnostics-Driven Framework","authors":"Dayakar Gandla, Inyoung Jang, Ashok Kumar Kakarla, Se Hwan Park, Junghyun Choi, Dongsoo Lee","doi":"10.1002/aenm.71528","DOIUrl":"10.1002/aenm.71528","url":null,"abstract":"<div>\u0000 \u0000 All-solid-state lithium batteries (ASSLBs) with layered oxide cathodes such as LiNi1-x-yMnxCoyO2 (NMC), LiNi1-x-yCoxAlyO2 (NCA), LiNiO2 (LNO), and lithium-rich layered oxides (LLOs) offer superior energy density and safety, yet their performance is severely limited by complex, coupled degradation mechanisms at the cathode/inorganic solid-state electrolyte (SSE) interface and within the cathode bulk. This review establishes a Diagnosis-Mechanism-Mitigation (D-M-M) framework that decodes these multiscale degradation phenomena by cross-validating multimodal diagnostic evidence from electronic structure to the cell level. Two categories are dissected: interfacial degradation, encompassing chemical decomposition, space-charge layer formation, and resistive interphase growth; and bulk cathode degradation, including structural phase transitions, cation disorder, oxygen loss, and microstructural cracking. Drawing on advanced spectroscopy, microscopy, 3D imaging, and in situ/operando methods, each degradation cascade is traced from its diagnostic signature to its mechanism and to the validated mitigation it informed, from interfacial coatings to dopant engineering and microstructure optimization. Machine learning and artificial intelligence are assessed for interpreting complex diagnostic datasets and guiding predictive cathode design. The framework is further extended to practically relevant conditions (thick electrodes, low stack pressure, and large-format cells), and the field's unresolved controversies are delineated together with the experiments that would decide them.\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148895817","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

Electrochemically Driven Refrigeration Based on Dissolution–Crystallization Cycle of Redox-Active Salts (Adv. Energy Mater. 38/2026) 基于氧化还原活性盐溶解-结晶循环的电化学驱动制冷（Adv. Energy Mater. 38/2026）

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71502

Yifan Zhang, Pei Liu, Yilin Zeng, Xuan Cai, Linfeng Wang, Huaiyu Ke, Xue Long, Hua Jiang, Wendong Yang, Zuoxuan Gan, Jiabao Sun, Jia Li, Jiangjiang Duan

引用次数: 0

Experimentally Determined Spatiotemporal Charge Carrier Dynamics for the Development of Particulate Photocatalysts 粒子光催化剂开发的时空电荷载流子动力学实验研究

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-09-09 DOI: 10.1002/aenm.71531

Sutripto Khasnabis, Robert Godin

{"title":"Experimentally Determined Spatiotemporal Charge Carrier Dynamics for the Development of Particulate Photocatalysts","authors":"Sutripto Khasnabis, Robert Godin","doi":"10.1002/aenm.71531","DOIUrl":"10.1002/aenm.71531","url":null,"abstract":"Particulate photocatalysts have generated interest for the low-cost implementation of various photocatalytic processes, including the production of solar fuels as clean energy sources. With light absorption, charge generation, charge transport, and interfacial charge transfer all constrained in individual particles, complex photophysical and photochemical processes occur on a wide range of timescales within spatially defined volumes. The allure of deciphering the charge carrier dynamics to build a fundamental picture of photocatalysis in different materials has motivated the development of state-of-the-art spatiotemporal measurement techniques. Monitoring charge carrier dynamics on relevant time and length scales is a challenging experimental task. Many experimental barriers have been overcome in recent years, providing some guidance for future directions for material development. This review delves into the underlying origins of spatial heterogeneity in charge carrier dynamics, introduces charge carrier transport phenomena, and details the recent examples of spatiotemporal investigation of charge carrier dynamics in particulate photocatalysts. These new experimental capabilities pave the way for a more comprehensive description of photocatalytic processes, guiding the optimization of photocatalytic materials.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/aenm.71531","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Asymmetric Interfacial Charge Gradients Enable Dual‐Pathway Proton Transfer for High‐Flux Alkaline Hydrogen Evolution 不对称界面电荷梯度使高通量碱性氢演化的双途径质子转移成为可能

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71702

Chaoran Pi, Junwei Sun, Xin Tian, Qiqin Hu, Lixing Yu, Shengya Li, Zhihong Liu, Xuming Zhang, Kaifu Huo, Ruifeng Zhang

{"title":"Asymmetric Interfacial Charge Gradients Enable Dual‐Pathway Proton Transfer for High‐Flux Alkaline Hydrogen Evolution","authors":"Chaoran Pi, Junwei Sun, Xin Tian, Qiqin Hu, Lixing Yu, Shengya Li, Zhihong Liu, Xuming Zhang, Kaifu Huo, Ruifeng Zhang","doi":"10.1002/aenm.71702","DOIUrl":"https://doi.org/10.1002/aenm.71702","url":null,"abstract":"Accelerating water dissociation while maintaining efficient proton transfer remains a substantial challenge in high‐flux alkaline hydrogen evolution reaction (HER). Here, we introduce an interfacial engineering strategy to develop a high‐flux alkaline HER electrocatalyst with controllable spatially asymmetric interfacial charge gradients, by incorporating size‐tunable Ni nanoparticles at Mo 2 N/Ni 0.2 Mo 0.8 N interfacial regions to create a Ni‐nanoparticle‐bridged dual‐interface heterogeneous structure with coordinated proton‐transfer pathways. The resultant electrocatalyst achieves an industrial current density of 1.0 A cm −2 at 1.74 V in an anion‐exchange membrane electrolyzer, outperforming commercial Pt/C by 10%, while sustaining 100 h intermittent operation under 10–1000 mA cm −2 current cycling, demonstrating robust operational stability under high‐flux conditions. Such high‐flux HER capability can be attributed to the formation of asymmetric charge gradients along the Ni/Mo 2 N and Ni/Ni 0.2 Mo 0.8 N interfaces, which reorient interfacial water molecules into favorable configurations to promote dissociation at apical Ni nanoparticle sites and continuously supply protons. Simultaneously, the generated protons are directed through two coordinated pathways consisting of electrostatically guided surface migration at the negatively polarized Ni/Mo 2 N interface and hydrogen‐bond‐network‐mediated hopping at the positively polarized Ni/Ni 0.2 Mo 0.8 N interface, safeguarding against proton‐transfer bottlenecks and active‐site blockage under high‐flux conditions. This work establishes interfacial charge gradient regulation as a design principle for high‐flux alkaline HER.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"169 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172622","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

Antiferrodistortive Matrix Engineering Reprograms Polarization Pathways for Ultrahigh Energy Storage at Moderate Electric Fields 抗铁畸变矩阵工程重编程中等电场下超高能量存储的极化路径

IF 27.8 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 DOI: 10.1002/aenm.71696

Leiyang Zhang, Hongchen Wang, Linpeng Tang, Yuxuan Yang, Ruiyi Jing, Yang Li, Yunyao Huang, Zizheng Song, Liqiang He, Dong Wang, Tengfei Hu, Zhanbing He, Yang Zhang, Haijun Wu, Li Jin

{"title":"Antiferrodistortive Matrix Engineering Reprograms Polarization Pathways for Ultrahigh Energy Storage at Moderate Electric Fields","authors":"Leiyang Zhang, Hongchen Wang, Linpeng Tang, Yuxuan Yang, Ruiyi Jing, Yang Li, Yunyao Huang, Zizheng Song, Liqiang He, Dong Wang, Tengfei Hu, Zhanbing He, Yang Zhang, Haijun Wu, Li Jin","doi":"10.1002/aenm.71696","DOIUrl":"https://doi.org/10.1002/aenm.71696","url":null,"abstract":"Relaxor ferroelectrics (RFEs) are promising dielectric materials for pulsed multilayer ceramic capacitors because of their rapid polarization response. However, under practical electric fields, polarization rapidly approaches saturation as polar nanoregions exhaust their nonlinear switching capability, fundamentally limiting energy‐storage performance. Here we demonstrate that antiferrodistortive matrix engineering reprograms the polarization evolution pathway through a polarization dormancy–awakening process. Long‐range antiferrodistortive modulation, introduced by the intrinsic lattice instability of CaZrO 3 in a (Bi 0.5 Na 0.4 K 0.1 )TiO 3 matrix, creates local strain fields that temporarily suppress PNR switching and progressively awaken dormant polarization under moderate electric fields. This substantially extends the nonlinear polarization‐response regime without inducing ferroelectric or antiferroelectric ordering. Atomic‐resolution electron microscopy, electron diffraction, and phase‐field simulations collectively reveal the structural origin of the awakening behavior and its coupling to local polarization dynamics. Consequently, the engineered relaxor ceramic achieves an ultrahigh recoverable energy‐storage density of 12.3 J cm – 3 with an energy‐storage efficiency of 87.4% at 520 kV cm – 1 , representing a benchmark performance for bulk RFE ceramics operating under moderate electric fields. This work establishes antiferrodistortive matrix engineering as a promising design strategy for reprogramming polarization evolution in RFEs toward high‐performance dielectric energy storage.","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"27 1","pages":""},"PeriodicalIF":27.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172623","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

Redox-Buffering PEAI-CeOx Passivation Suppresses Thermo-Mechanical Degradation in Perovskite Solar Cells Under Rapid Thermal Cycling 氧化还原缓冲PEAI - CeO x钝化抑制钙钛矿太阳能电池在快速热循环下的热机械降解

IF 25.5 1区材料科学

Advanced Energy Materials Pub Date : 2026-10-14 Epub Date: 2026-07-27 DOI: 10.1002/aenm.71312

George Kwesi Asare, Minwoo Lee, Joshua Sraku Adu, Ram Datt, Wing Chung Tsoi, Trystan Watson, Xiaojing Hao, Juhong Oh, Chang Eun Song, Behrang H. Hamadani, Jae Sung Yun, Helen Hejin Park

{"title":"Redox-Buffering PEAI-CeOx Passivation Suppresses Thermo-Mechanical Degradation in Perovskite Solar Cells Under Rapid Thermal Cycling","authors":"George Kwesi Asare, Minwoo Lee, Joshua Sraku Adu, Ram Datt, Wing Chung Tsoi, Trystan Watson, Xiaojing Hao, Juhong Oh, Chang Eun Song, Behrang H. Hamadani, Jae Sung Yun, Helen Hejin Park","doi":"10.1002/aenm.71312","DOIUrl":"10.1002/aenm.71312","url":null,"abstract":"<div>\u0000 \u0000 Perovskite solar cells (PSCs) show critical thermo-mechanical and defect mediated degradation at interfaces, limiting their deployment in terrestrial high-temperature and space-like environments. This study presents a dual-function interfacial passivation strategy that combines nanoparticle cerium oxide (CeOx) with phenylethylammonium iodide (PEAI) to form a hybrid surface treatment (PC) for poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine (PTAA) based n-i-p PSC architecture, where defect passivation is complemented by redox coupling and enhanced thermal stress stabilization. Optimized PC-treated devices achieved a champion efficiency of 25.3% and exhibited enhanced operational stabilities under continuous 1 SUN light soaking and 85°C/85% RH damp heat respectively. To probe the engineered interface mechanistically, we employed an accelerated thermal shock (TS) cycling to mimic low Earth orbit (LEO) relevant thermal cycling condition. Under realistically simulated TS conditions of cycling temperature between 80°C and −80°C and 16°C/min ramp rate transition, PC-treated devices retained 95% of initial efficiency after 100 cycles of TS, showing superior stability compared to their counterparts without CeOx. Collectively, this work highlights a new insight into dynamic thermal fatigue in PSCs and introduces a practical route toward thermally resilient, high efficiency perovskite photovoltaics.\u0000 </div>","PeriodicalId":111,"journal":{"name":"Advanced Energy Materials","volume":"16 38","pages":""},"PeriodicalIF":25.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148633912","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