Nature Energy最新文献_第7页

Barrier reinforcement for enhanced perovskite solar cell stability under reverse bias 在反向偏压下增强过氧化物太阳能电池稳定性的势垒加固技术

IF 56.7 1区材料科学

Nature Energy Pub Date : 2024-07-01 DOI: 10.1038/s41560-024-01579-7

Nengxu Li, Zhifang Shi, Chengbin Fei, Haoyang Jiao, Mingze Li, Hangyu Gu, Steven P. Harvey, Yifan Dong, Matthew C. Beard, Jinsong Huang

{"title":"Barrier reinforcement for enhanced perovskite solar cell stability under reverse bias","authors":"Nengxu Li, Zhifang Shi, Chengbin Fei, Haoyang Jiao, Mingze Li, Hangyu Gu, Steven P. Harvey, Yifan Dong, Matthew C. Beard, Jinsong Huang","doi":"10.1038/s41560-024-01579-7","DOIUrl":"https://doi.org/10.1038/s41560-024-01579-7","url":null,"abstract":"Stability of perovskite solar cells (PSCs) under light, heat, humidity and their combinations have been notably improved recently. However, PSCs have poor reverse-bias stability that limits their real-world application. Here we report a systematic study on the degradation mechanisms of p–i–n structure PSCs under reverse bias. The oxidation of iodide by injected holes at the cathode side initialize the reverse-bias-induced degradation, then the generated neutral iodine oxidizes metal electrode such as copper, followed by drift of Cu+ into perovskites and its reduction by injected electrons, resulting in localized metallic filaments and thus device breakdown. A reinforced barrier with combined lithium fluoride, tin oxide and indium tin oxide at the cathode side reduces device dark current and avoids the corrosion of Cu0. It dramatically increases breakdown voltage to above −20 V and improved the T90 lifetime of PSCs to ~1,000 h under –1.6 V. The modified minimodule also maintained over 90% of its initial performance after 720 h of shadow tests.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":null,"pages":null},"PeriodicalIF":56.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141475322","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

Author Correction: A multi-material cascade elastocaloric cooling device for large temperature lift 作者更正：用于大升温的多材料级联弹性冷却装置

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-01 DOI: 10.1038/s41560-024-01587-7

Guoan Zhou, Zexi Li, Qiuhong Wang, Yuxiang Zhu, Peng Hua, Shuhuai Yao, Qingping Sun

引用次数: 0

Diversifying heat sources in China’s urban district heating systems will reduce risk of carbon lock-in 中国城市区域供热系统热源多样化将降低碳锁定风险

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-07-01 DOI: 10.1038/s41560-024-01560-4

Shangwei Liu, Yang Guo, Fabian Wagner, Hongxun Liu, Ryna Yiyun Cui, Denise L. Mauzerall

{"title":"Diversifying heat sources in China’s urban district heating systems will reduce risk of carbon lock-in","authors":"Shangwei Liu, Yang Guo, Fabian Wagner, Hongxun Liu, Ryna Yiyun Cui, Denise L. Mauzerall","doi":"10.1038/s41560-024-01560-4","DOIUrl":"10.1038/s41560-024-01560-4","url":null,"abstract":"China’s clean heating policy since 2017 has notably improved air quality. However, the share of non-fossil sources in China’s urban district heating systems remain low, and many new coal-fired combined heat and power plants are being built. Strategic choices for district heating technologies are necessary for China to reach peak carbon emissions by 2030 and achieve carbon neutrality by 2060. Here we find that replacing polluting coal technologies with new and improved coal-fired combined heat and power plants will lead to substantial carbon lock-in and hinder decommissioning of associated coal-fired electricity generation. Expanding the use of industrial waste heat and air/ground-source heat pumps can avoid the need for new combined heat and power construction and reduce carbon emissions by 26% from 2020 to 2030. Our findings indicate the importance of the government’s recent proposals to decarbonize district heating. China’s continuing reliance on coal in district heating risks considerable carbon lock-in and hinders decommissioning of coal-fired electricity generation. This work outlines how the government can achieve its proposal to decarbonize district heating.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":null,"pages":null},"PeriodicalIF":49.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141475306","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

Author Correction: Evaluating community solar as a measure to promote equitable clean energy access 作者更正：将社区太阳能作为促进公平获取清洁能源的措施进行评估

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-06-28 DOI: 10.1038/s41560-024-01586-8

Eric O’Shaughnessy, Galen Barbose, Sudha Kannan, Jenny Sumner

引用次数: 0

Puerto Rico’s energy transition 波多黎各的能源转型

IF 49.7 1区材料科学

Nature Energy Pub Date : 2024-06-25 DOI: 10.1038/s41560-024-01573-z

Silvana Lakeman

引用次数: 0

Relieving stress for stability 缓解压力，保持稳定