ACS Energy Letters 最新文献_第10页

Dual Stress-Dissipation Pathways for Enhanced Thermomechanical Stability in Tin–Lead Perovskite Solar Cells 提高锡铅钙钛矿太阳能电池热机械稳定性的双应力耗散途径

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-29 DOI: 10.1021/acsenergylett.5c02121

Mingjun Ma, Fang Yue*, Wen Zhang, Wenjian Yan, Tao Wang, Jiahui Cheng, Shuming Zhang, Cheng Li, Huijie Cao, Mingzhe Zhu, Jiakang Zhang, Cheng Peng, Mengjiao Lan, Hao Wang* and Zhongmin Zhou*,

{"title":"Dual Stress-Dissipation Pathways for Enhanced Thermomechanical Stability in Tin–Lead Perovskite Solar Cells","authors":"Mingjun Ma, Fang Yue*, Wen Zhang, Wenjian Yan, Tao Wang, Jiahui Cheng, Shuming Zhang, Cheng Li, Huijie Cao, Mingzhe Zhu, Jiakang Zhang, Cheng Peng, Mengjiao Lan, Hao Wang* and Zhongmin Zhou*, ","doi":"10.1021/acsenergylett.5c02121","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02121","url":null,"abstract":"Substantial temperature fluctuations during device operation, coupled with the coefficient of thermal expansion (CTE) mismatch between the perovskite and substrate, generate significant thermal stress. This stress induces cracking in the perovskite film and interfacial delamination, severely compromising the stability of perovskite solar cells (PSCs). Nevertheless, this issue remains underexplored in tin–lead PSCs, where thermally induced mechanical failure is exacerbated by abundant stress concentration zones within the perovskite. Herein, we engineer dual stress-dissipation pathways by incorporating a poly[(prop-2-enamide)-co-(prop-2-enoic acid)] (PAA) copolymer. A pre-compressive stress established during film formation counteracts subsequent operational thermal tensile stresses. Concurrently, a flexible hydrogen-bonding network between PAA and perovskite provides an additional dissipation pathway, alleviating the stress concentration. Furthermore, PAA’s flexible carbon chains enhance perovskite film flexibility and reduce CTE mismatch, thereby inhibiting thermally induced cracks and delamination. Consequently, PAA-optimized devices retain 85.0% of their initial efficiency after 1200 h of thermal cycling between 25 and 85 °C.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4603–4611"},"PeriodicalIF":18.2,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036262","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

Accelerating Interfacial Electron Extraction for Boosting Photocatalytic Hydrogen Evolution of Pt/Ta3N5:Mg+Hf 加速界面电子萃取促进Pt/Ta3N5:Mg+Hf光催化析氢

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-29 DOI: 10.1021/acsenergylett.5c02220

Jiwei Cui, Xinmin Yang, Yanhui Sun, Xuemei Du, Chenhe Wu, Xin Chen, Kailun Deng, Lequan Liu* and Jinhua Ye*,

{"title":"Accelerating Interfacial Electron Extraction for Boosting Photocatalytic Hydrogen Evolution of Pt/Ta3N5:Mg+Hf","authors":"Jiwei Cui, Xinmin Yang, Yanhui Sun, Xuemei Du, Chenhe Wu, Xin Chen, Kailun Deng, Lequan Liu* and Jinhua Ye*, ","doi":"10.1021/acsenergylett.5c02220","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02220","url":null,"abstract":"Promoting bulk charge separation in Ta3N5 through Mg doping was demonstrated as an effective strategy for enhancing photocatalytic water oxidation. However, this strategy exhibits a limited effect in addressing the long-standing issue of poor HER activity of Ta3N5. Herein, the underlying mechanism was first clarified, and a Mg–Hf codoping strategy was developed, which remarkably enhanced the HER activity. Systematic studies revealed that effective interfacial electron transfer between Ta3N5 and Pt was seriously impeded after Mg doping. UPS and DFT calculations demonstrated that Hf codoping significantly accelerates interfacial electron extraction through the modulation of Fermi level. 7.7 and 17.6 times enhancement in HER was achieved over Ta3N5:Mg+Hf as compared with Ta3N5:Mg and Ta3N5, respectively. An outstanding AQY was achieved, ranking among the highest values reported for Ta3N5. This work highlights the importance of effective interfacial electron extraction and presents a feasible approach to rationally designing Ta3N5.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4612–4619"},"PeriodicalIF":18.2,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036712","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

Optically Determined Hole Effective Mass in Tin-Iodide Perovskite Films 光学测定的碘化锡钙钛矿薄膜空穴有效质量

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-28 DOI: 10.1021/acsenergylett.5c02283

Vincent J.-Y. Lim, Marcello Righetto, Michael D. Farrar, Thomas Siday, Henry J. Snaith, Michael B. Johnston and Laura M. Herz*,

{"title":"Optically Determined Hole Effective Mass in Tin-Iodide Perovskite Films","authors":"Vincent J.-Y. Lim, Marcello Righetto, Michael D. Farrar, Thomas Siday, Henry J. Snaith, Michael B. Johnston and Laura M. Herz*, ","doi":"10.1021/acsenergylett.5c02283","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02283","url":null,"abstract":"Tin-halide perovskites currently offer the best photovoltaic performance of lead-free metal-halide semiconductors. However, their transport properties are mostly dominated by holes, owing to ubiquitous self-doping. Here we demonstrate a noncontact, optical spectroscopic method to determine the effective mass of the dominant hole species in FASnI3, by investigating a series of thin films with hole densities finely tuned through either SnF2 additive concentration or controlled exposure to air. We accurately determine the plasma frequency from mid-infrared reflectance spectra by modeling changes in the vibrational response of the FA cation as the plasma edge shifts through the molecular resonance. Our approach yields a hole effective mass of 0.28me for FASnI3 and demonstrates parabolicity within ∼100 meV of the valence band edge. An absence of Fano contributions further highlights insignificant coupling between the hole plasma and FA cation. Overall, this approach enables noncontact screening of thin-film materials for optimized charge-carrier transport properties.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4589–4595"},"PeriodicalIF":18.2,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsenergylett.5c02283","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036591","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

Singlet Fission c-Si Solar Cells: Beyond Tetracene 单线态裂变c-Si太阳能电池：超越四烯

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-28 DOI: 10.1021/acsenergylett.5c01930

Alexander J. Baldacchino, Matthew W. Brett, Ben P. Carwithen, Shona McNab, Jingnan Tong, Victor Y. Zhang, Nathan L. Chang, Alison Ciesla, Damon M. de Clercq, Simona S. Capomolla, Miles I. Collins, Jessica Yajie Jiang, Munavvar F. M. Kavungathodi, Alvin Mo, Phoebe M. Pearce, Bram Hoex, Dane R. McCamey, Michael P. Nielsen, Jonathon E. Beves, Nicholas J. Ekins-Daukes*, Timothy W. Schmidt* and Murad J. Y. Tayebjee*,

{"title":"Singlet Fission c-Si Solar Cells: Beyond Tetracene","authors":"Alexander J. Baldacchino, Matthew W. Brett, Ben P. Carwithen, Shona McNab, Jingnan Tong, Victor Y. Zhang, Nathan L. Chang, Alison Ciesla, Damon M. de Clercq, Simona S. Capomolla, Miles I. Collins, Jessica Yajie Jiang, Munavvar F. M. Kavungathodi, Alvin Mo, Phoebe M. Pearce, Bram Hoex, Dane R. McCamey, Michael P. Nielsen, Jonathon E. Beves, Nicholas J. Ekins-Daukes*, Timothy W. Schmidt* and Murad J. Y. Tayebjee*, ","doi":"10.1021/acsenergylett.5c01930","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c01930","url":null,"abstract":"Singlet fission photovoltaics enable the extraction of two electron–hole pairs from each higher-energy photon while leveraging a mature technology such as crystalline silicon (c-Si) as the underlying cell. Significant steps have been made in the development of singlet fission silicon photovoltaics, but all examples reported to date use tetracene as the singlet fission material. Tetracene is photochemically unstable and therefore unsuitable for commercial applications. Here we demonstrate singlet fission-derived triplet exciton transfer to c-Si from photochemically stable dipyrrolonaphthyridinedione (DPND) derivatives, with a thin layer of tin oxide as the passivation layer. An overlayer of poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) was found to improve interface passivation further. These observations demonstrate that singlet fission photovoltaic devices can be made using stable and commercially viable materials.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4596–4602"},"PeriodicalIF":18.2,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036424","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

Polarized π-Spacer Engineering Enables Sequential Electron Transfer for Photocatalytic Water Splitting in Covalent Organic Frameworks 极化π-间隔层工程实现了共价有机框架中光催化水分解的顺序电子转移

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-28 DOI: 10.1021/acsenergylett.5c02419

Hongji Pan, Qing Niu, Mingfei Yu, Liuyi Li* and Yan Yu,

{"title":"Polarized π-Spacer Engineering Enables Sequential Electron Transfer for Photocatalytic Water Splitting in Covalent Organic Frameworks","authors":"Hongji Pan, Qing Niu, Mingfei Yu, Liuyi Li* and Yan Yu, ","doi":"10.1021/acsenergylett.5c02419","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02419","url":null,"abstract":"Covalent organic frameworks (COFs) have significant potential for solar-driven water splitting, yet they face the critical challenge of suppressing rapid charge recombination. Herein, we demonstrate a linker engineering strategy for the construction of COFs that involves polarized π-spacers to integrate donor and acceptor units into anisotropic skeletons. Under illumination, the polarized π-spacers induce an intramolecular sequential electron transfer along the linkers, enabling an enhanced charge delocalization and thereby significantly prolonging the charge-separated states compared to the binary-component counterparts. As a result, the designed ternary-ordered COF shows enhanced co-production of H2 and H2O2 from visible-light-driven water splitting, achieving an apparent quantum efficiency of 0.98% at 420 nm, outperforming most reported analogous materials. This strategy of driving sequential electron transfer in COFs by linker design to suppress charge recombination offers a rational approach for developing high-performance photocatalytic systems.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4580–4588"},"PeriodicalIF":18.2,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036349","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

Determining the Ion Mobility in Perovskite Solar Cells from Impedance Spectroscopy 用阻抗谱法测定钙钛矿太阳能电池中的离子迁移率

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-26 DOI: 10.1021/acsenergylett.5c01690

Fransien D. Elhorst, Javier E. Sebastián Alonso, Henk J. Bolink and L. Jan Anton Koster*,

引用次数: 0

High-Entropy Electrolytes in Sodium-Ion Batteries: Performance and Safety Perspective 钠离子电池中的高熵电解质：性能和安全性

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-25 DOI: 10.1021/acsenergylett.5c02203

Sooryadas Sudhakaran, Kausthubharam, Bairav S. Vishnugopi, Partha P. Mukherjee* and Vilas G. Pol*,

引用次数: 0

Iodine’s Wild Ride Leading to Photoinstability in Halide Perovskite Solar Cells 卤化物钙钛矿太阳能电池中碘的剧烈波动导致光不稳定性

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-24 DOI: 10.1021/acsenergylett.5c02199

Gábor Szabó, Masaru Kuno and Prashant V. Kamat*,

{"title":"Iodine’s Wild Ride Leading to Photoinstability in Halide Perovskite Solar Cells","authors":"Gábor Szabó, Masaru Kuno and Prashant V. Kamat*, ","doi":"10.1021/acsenergylett.5c02199","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02199","url":null,"abstract":"Understanding processes that contribute to efficiency losses during long-term operation of perovskite solar cells is crucial for achieving operational stability. Although maximum power point tracking optimizes outdoor performance, it is not uncommon that devices are kept under open-circuit conditions during sunny hours. Under these conditions, charge carriers accumulate at the interfaces rather than flowing through the circuit. In the case of the MAPbI3/spiro-OMeTAD interface studied here, hole accumulation leads to formation of I2 and subsequent oxidation of spiro-OMeTAD. By employing in situ absorption measurements, we show that the decrease in power conversion efficiency follows the spiro-OMeTAD oxidation while operating the device under open-circuit conditions. In short-circuit conditions, where photogenerated charge carriers are extracted in the external circuit, the I2-induced oxidation of spiro-OMeTAD and the device instability are minimized. The photoinduced expulsion of iodine from MAPbI3 into spiro-OMeTAD discussed in this study provides new insight into the photoinstability of perovskite solar cells.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4378–4385"},"PeriodicalIF":18.2,"publicationDate":"2025-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036552","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

Antibonding–Vacancy Coupling Boosts Hydrogen Evolution Rate in Diborides 反键-空位耦合提高二硼化物的析氢速率

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-24 DOI: 10.1021/acsenergylett.5c02211

Eunsoo Lee, Johan A. Yapo, Ashwin Bhupathy, Tamar S. Mentzel, Xiangxi Yin, Shola E. Adeniji, Sang Bum Kim and Boniface P. T. Fokwa*,

{"title":"Antibonding–Vacancy Coupling Boosts Hydrogen Evolution Rate in Diborides","authors":"Eunsoo Lee, Johan A. Yapo, Ashwin Bhupathy, Tamar S. Mentzel, Xiangxi Yin, Shola E. Adeniji, Sang Bum Kim and Boniface P. T. Fokwa*, ","doi":"10.1021/acsenergylett.5c02211","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c02211","url":null,"abstract":"A non-noble-metal electrocatalyst, V1–xMox–δB2 (x = 0–1; δ < 0.2), is introduced to replace costly hydrogen evolution reaction (HER) catalysts, enabling a greener energy economy. This solid solution catalyst includes vacancy-free and Mo-vacancy-containing variants (δmax = 0.16 for x = 0.7). Combining dual active sites and vacancies, it achieves a low overpotential (η1000 = 0.391 V), outperforming Pt/C (η1000 = 0.837 V) at industry-relevant current densities. DFT calculations reveal that strong antibonding metal–boron interactions at the Fermi level in Mo-deficient samples drive a unique volcano-like behavior in the c-lattice parameter and enhance HER activity. The catalyst also demonstrates exceptional stability, showing no degradation after 24 h at 900 mA/cm2 or after 5000 CV cycles. This work highlights a novel approach to designing high-current-density non-noble-metal HER catalysts by leveraging antibonding interactions and vacancy formation.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4560–4566"},"PeriodicalIF":18.2,"publicationDate":"2025-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036560","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

Unveiling the Role of Lithium Iodide in Stabilizing Solid Interfaces in All-Solid-State Li Metal Batteries 揭示碘化锂在稳定全固态锂金属电池固体界面中的作用

IF 18.2 1区材料科学

ACS Energy Letters Pub Date : 2025-08-23 DOI: 10.1021/acsenergylett.5c01578

Di Huang, Suyue Yuan, Nicole Adelstein, Gao Liu, Liwen F. Wan and Wei Tong*,

{"title":"Unveiling the Role of Lithium Iodide in Stabilizing Solid Interfaces in All-Solid-State Li Metal Batteries","authors":"Di Huang, Suyue Yuan, Nicole Adelstein, Gao Liu, Liwen F. Wan and Wei Tong*, ","doi":"10.1021/acsenergylett.5c01578","DOIUrl":"https://doi.org/10.1021/acsenergylett.5c01578","url":null,"abstract":"A critical challenge in all-solid-state lithium metal batteries (ASSLMBs) is achieving a stable interface between the lithium metal anode and the solid electrolyte. Leveraging its success in Li/I2 batteries, lithium iodide has garnered significant attentions for its potential to enhance interfacial stability and overall cell performance in ASSLMBs. Here, we elucidate the role of lithium iodide in stabilizing the solid interface in all-solid-state Li metal batteries with a Li argyrodite electrolyte, particularly focusing on its influence on lithium deposition behavior and interfacial evolution. Through in situ optical imaging, we demonstrate more uniform lithium deposition on an iodide-contained argyrodite electrolyte compared to a chloride-based counterpart. Complementary density functional theory calculations attribute improved lithium plating behavior to the enhanced lithiophilicity and better ionic conductivity of lithium iodide at the solid interface, effectively reducing localized current density. These findings provide useful insights into the mechanisms through which lithium iodide enhances the interfacial stability in ASSLMBs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":"10 9","pages":"4553–4559"},"PeriodicalIF":18.2,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145036549","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