Journal of the American Chemical Society最新文献_第10页

Diamine chelates for increased stability in mixed Sn–Pb and all-perovskite tandem solar cells 二胺螯合物提高锡铅混合和全长晶串联太阳能电池的稳定性

IF 56.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-15 DOI: 10.1038/s41560-024-01613-8

Chongwen Li, Lei Chen, Fangyuan Jiang, Zhaoning Song, Xiaoming Wang, Adam Balvanz, Esma Ugur, Yuan Liu, Cheng Liu, Aidan Maxwell, Hao Chen, Yanjiang Liu, Zaiwei Wang, Pan Xia, You Li, Sheng Fu, Nannan Sun, Corey R. Grice, Xuefei Wu, Zachary Fink, Qin Hu, Lewei Zeng, Euidae Jung, Junke Wang, So Min Park, Deying Luo, Cailing Chen, Jie Shen, Yu Han, Carlo Andrea Riccardo Perini, Juan-Pablo Correa-Baena, Zheng-Hong Lu, Thomas P. Russell, Stefaan De Wolf, Mercouri G. Kanatzidis, David S. Ginger, Bin Chen, Yanfa Yan, Edward H. Sargent

{"title":"Diamine chelates for increased stability in mixed Sn–Pb and all-perovskite tandem solar cells","authors":"Chongwen Li, Lei Chen, Fangyuan Jiang, Zhaoning Song, Xiaoming Wang, Adam Balvanz, Esma Ugur, Yuan Liu, Cheng Liu, Aidan Maxwell, Hao Chen, Yanjiang Liu, Zaiwei Wang, Pan Xia, You Li, Sheng Fu, Nannan Sun, Corey R. Grice, Xuefei Wu, Zachary Fink, Qin Hu, Lewei Zeng, Euidae Jung, Junke Wang, So Min Park, Deying Luo, Cailing Chen, Jie Shen, Yu Han, Carlo Andrea Riccardo Perini, Juan-Pablo Correa-Baena, Zheng-Hong Lu, Thomas P. Russell, Stefaan De Wolf, Mercouri G. Kanatzidis, David S. Ginger, Bin Chen, Yanfa Yan, Edward H. Sargent","doi":"10.1038/s41560-024-01613-8","DOIUrl":"https://doi.org/10.1038/s41560-024-01613-8","url":null,"abstract":"Perovskite tandem solar cells show promising performance, but non-radiative recombination and its progressive worsening with time, especially in the mixed Sn–Pb low-bandgap layer, limit performance and stability. Here we find that mixed Sn–Pb perovskite thin films exhibit a compositional gradient, with an excess of Sn on the surface—and we show this gradient exacerbates oxidation and increases the recombination rate. We find that diamines preferentially chelate Sn atoms, removing them from the film surface and achieving a more balanced Sn:Pb stoichiometry, making the surface of the film resistive to the oxidation of Sn. The process forms an electrically resistive low-dimensional barrier layer, passivating defects and reducing interface recombination. Further improving the homogeneity of the barrier layer using 1,2-diaminopropane results in more uniform distribution and passivation. Tandems achieve a power conversion efficiency of 28.8%. Encapsulated tandems retain 90% of initial efficiency following 1,000 h of operating at the maximum power point under simulated one-sun illumination in air without cooling.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"35 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2024-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141986477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conductive colloidal perovskite quantum dot inks towards fast printing of solar cells 实现太阳能电池快速印刷的导电胶体包覆晶量子点油墨

IF 56.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-13 DOI: 10.1038/s41560-024-01608-5

Xuliang Zhang, Hehe Huang, Chenyu Zhao, Lujie Jin, Chihyung Lee, Youyong Li, Doo-Hyun Ko, Wanli Ma, Tom Wu, Jianyu Yuan

{"title":"Conductive colloidal perovskite quantum dot inks towards fast printing of solar cells","authors":"Xuliang Zhang, Hehe Huang, Chenyu Zhao, Lujie Jin, Chihyung Lee, Youyong Li, Doo-Hyun Ko, Wanli Ma, Tom Wu, Jianyu Yuan","doi":"10.1038/s41560-024-01608-5","DOIUrl":"https://doi.org/10.1038/s41560-024-01608-5","url":null,"abstract":"Quantum dot (QD) provides a versatile platform for high-throughput processing of semiconductors for large-area optoelectronic applications. Unfortunately, the QD solar cell is hampered by the time-consuming layer-by-layer process, a major challenge in manufacturing printable devices. Here we demonstrate a sequential acylation-coordination protocol including amine-assisted ligand removal and Lewis base-coordinated surface restoration to synthesize conductive APbI3 (A = formamidinium (FA), Cs or methylammonium) colloidal perovskite QD (PeQD) inks that enable one-step PeQD film deposition without additional solid-state ligand exchange. The resultant PeQD film displays uniform morphology with elevated electronic coupling, more ordered structure and homogeneous energy landscape. Narrow-bandgap FAPbI3 PeQD-based solar cells achieve a champion efficiency of 16.61% (certified 16.20%), exceeding the values obtained with other QD inks and layer-by-layer processes. The conductive PeQD inks are compatible with large-area device (9 × 9 cm2) fabrication using the blade-coating technique with a speed up to 50 mm s−1.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"131 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141974115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Challenges and opportunities in truck electrification revealed by big operational data 运营大数据揭示卡车电气化的挑战与机遇

IF 56.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-12 DOI: 10.1038/s41560-024-01602-x

Pei Zhao, Shaojun Zhang, Paolo Santi, Dingsong Cui, Fang Wang, Peng Liu, Zhaosheng Zhang, Jin Liu, Zhenpo Wang, Carlo Ratti, Ye Wu

{"title":"Challenges and opportunities in truck electrification revealed by big operational data","authors":"Pei Zhao, Shaojun Zhang, Paolo Santi, Dingsong Cui, Fang Wang, Peng Liu, Zhaosheng Zhang, Jin Liu, Zhenpo Wang, Carlo Ratti, Ye Wu","doi":"10.1038/s41560-024-01602-x","DOIUrl":"https://doi.org/10.1038/s41560-024-01602-x","url":null,"abstract":"The electrification of trucks is a major challenge in achieving zero-emission transportation. Here we gathered year-long records from 61,598 electric trucks in China. Current electric trucks were found to be significantly underutilized compared with their diesel counterparts. Twenty-three per cent of electric delivery trucks and 30% of semi-trailers could achieve one-on-one replacement with diesel counterparts, while on average 3.8 electric delivery trucks and 3.6 electric semi-trailers are required to match the transportation demand that is served by one diesel truck separately. For diesel trucks that are capable of one-on-one replacement, electric trucks have 15–54% and 1–49% reductions in cost and life-cycle CO2 emissions, respectively. Enhancements in usage patterns, vehicle technologies and charging infrastructure can improve electrification feasibility, yielding cost and decarbonization benefits. Increased battery energy densities with optimized usage can make one-on-one electrification feasible for more than 85% of diesel semi-trailers. In addition, with cleaner electricity, most Chinese electric trucks in 2030 will have lower expected life-cycle CO2 emissions than diesel trucks.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"44 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2024-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141918866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrodes with 100% active materials 100% 活性材料电极

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-08 DOI: 10.1038/s41560-024-01595-7

Eric McCalla

引用次数: 0

Improved reverse bias stability in p–i–n perovskite solar cells with optimized hole transport materials and less reactive electrodes 利用优化的空穴传输材料和反应性较低的电极提高 pi-n 型过氧化物太阳能电池的反向偏压稳定性

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-07 DOI: 10.1038/s41560-024-01600-z

Fangyuan Jiang, Yangwei Shi, Tanka R. Rana, Daniel Morales, Isaac E. Gould, Declan P. McCarthy, Joel A. Smith, M. Greyson Christoforo, Muammer Y. Yaman, Faiz Mandani, Tanguy Terlier, Hannah Contreras, Stephen Barlow, Aditya D. Mohite, Henry J. Snaith, Seth R. Marder, J. Devin MacKenzie, Michael D. McGehee, David S. Ginger

{"title":"Improved reverse bias stability in p–i–n perovskite solar cells with optimized hole transport materials and less reactive electrodes","authors":"Fangyuan Jiang, Yangwei Shi, Tanka R. Rana, Daniel Morales, Isaac E. Gould, Declan P. McCarthy, Joel A. Smith, M. Greyson Christoforo, Muammer Y. Yaman, Faiz Mandani, Tanguy Terlier, Hannah Contreras, Stephen Barlow, Aditya D. Mohite, Henry J. Snaith, Seth R. Marder, J. Devin MacKenzie, Michael D. McGehee, David S. Ginger","doi":"10.1038/s41560-024-01600-z","DOIUrl":"10.1038/s41560-024-01600-z","url":null,"abstract":"As perovskite photovoltaics stride towards commercialization, reverse bias degradation in shaded cells that must current match illuminated cells is a serious challenge. Previous research has emphasized the role of iodide and silver oxidation, and the role of hole tunnelling from the electron-transport layer into the perovskite to enable the flow of current under reverse bias in causing degradation. Here we show that device architecture engineering has a significant impact on the reverse bias behaviour of perovskite solar cells. By implementing both a ~35-nm-thick conjugated polymer hole transport layer and a more electrochemically stable back electrode, we demonstrate average breakdown voltages exceeding −15 V, comparable to those of silicon cells. Our strategy for increasing the breakdown voltage reduces the number of bypass diodes needed to protect a solar module that is partially shaded, which has been proven to be an effective strategy for silicon solar panels. Perovskite solar cells degrade when subjected to reverse bias. Jiang et al. show that relatively thick hole transport layers and metal back contacts with improved electrochemical stability afford better tolerance to reverse bias.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"9 10","pages":"1275-1284"},"PeriodicalIF":49.7,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141899746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Chirality for stable interfaces 稳定界面的手性

IF 56.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-06 DOI: 10.1038/s41560-024-01597-5

Juan-Pablo Correa-Baena

引用次数: 0

Quantum confinement-induced anti-electrooxidation of metallic nickel electrocatalysts for hydrogen oxidation 量子约束诱导的金属镍氢氧化电催化剂的抗电氧化作用

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-05 DOI: 10.1038/s41560-024-01604-9

Yuanyuan Zhou, Wei Yuan, Mengting Li, Zhenyang Xie, Xiaoyun Song, Yang Yang, Jian Wang, Li Li, Wei Ding, Wen-Feng Lin, Zidong Wei

{"title":"Quantum confinement-induced anti-electrooxidation of metallic nickel electrocatalysts for hydrogen oxidation","authors":"Yuanyuan Zhou, Wei Yuan, Mengting Li, Zhenyang Xie, Xiaoyun Song, Yang Yang, Jian Wang, Li Li, Wei Ding, Wen-Feng Lin, Zidong Wei","doi":"10.1038/s41560-024-01604-9","DOIUrl":"10.1038/s41560-024-01604-9","url":null,"abstract":"The anion-exchange-membrane fuel cell (AEMFC) is an attractive and cost-effective energy-conversion technology because it can use Earth-abundant and low-cost non-precious metal catalysts. However, non-precious metals used in AEMFCs to catalyse the hydrogen oxidation reaction are prone to self-oxidation, resulting in irreversible failure. Here we show a quantum well-like catalytic structure (QWCS), constructed by atomically confining Ni nanoparticles within a carbon-doped-MoOx/MoOx heterojunction (C-MoOx/MoOx) that can selectively transfer external electrons from the hydrogen oxidation reaction while remaining itself metallic. Electrons of Ni nanoparticles gain a barrier of 1.11 eV provided by the QWCS leading to Ni stability up to 1.2 V versus the reversible hydrogen electrode (VRHE) whereas electrons released from the hydrogen oxidation reaction easily cross the barrier by a gating operation of QWCS upon hydrogen adsorption. The QWCS-catalysed AEMFC achieved a high-power density of 486 mW mgNi−1 and withstood hydrogen starvation operations during shutdown–start cycles, whereas a counterpart AEMFC without QWCS failed in a single cycle. Non-precious metals used at the anode of anion-exchange-membrane fuel cells to catalyse hydrogen oxidation are prone to self-oxidation. Here Zhou and colleagues report that a quantum well-like catalytic structure containing Ni nanoparticles within a C-doped MoOx/MoOx heterojunction can mitigate such degradation by a gating operation.","PeriodicalId":49,"journal":{"name":"Journal of the American Chemical Society","volume":"9 10","pages":"1297-1309"},"PeriodicalIF":49.7,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41560-024-01604-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141895393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Author Correction: Molecular cation and low-dimensional perovskite surface passivation in perovskite solar cells 作者更正：包晶体太阳能电池中的分子阳离子和低维包晶体表面钝化

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-05 DOI: 10.1038/s41560-024-01623-6

Sam Teale, Matteo Degani, Bin Chen, Edward H. Sargent, Giulia Grancini

引用次数: 0

Smoothing down interfaces 平滑接口

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-02 DOI: 10.1038/s41560-024-01610-x

Qing Zhao

引用次数: 0

Connectivity matters 连通性至关重要

IF 49.7 1区化学

Journal of the American Chemical Society Pub Date : 2024-08-02 DOI: 10.1038/s41560-024-01599-3

Fei Zhang

引用次数: 0