Results 21 to 30 of about 4,029 (149)

A Multifunctional Reducing Molecular Dopant for 16% Efficient Tin Perovskite Solar Cells

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Although lead‐based photovoltaics have seen remarkable progress, tin‐based perovskite solar cells (Sn‐PSCs) continue to face challenges due to their limited power conversion efficiency and insufficient operational stability. The primary cause of this performance gap is the susceptibility of Sn2+ to oxidation, which promotes rapid defect ...
Xianyong Zhou, Yuanwei Wang, Kaixin Huang, Guo Ding, Jinbo Chen, Zhixin Liu, Luozheng Zhang, Meiqing Zhang, Lei Yan, Yifa Sheng, Chang Liu, Xingzhu Wang, Baomin Xu   +12 more
wiley   +1 more source

Vertically Oriented Single‐Layer Grains for a Highly Bifunctional Perovskite Photovoltaic Light‐Emitting Device

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The realization of bifunctional perovskite devices integrating photovoltaic (PV) and light‐emitting diode (LED) capabilities requires precisely controlled grain architectures to facilitate dual carrier transport pathways. In this work, sulfaguanidine (SG) molecules were introduced into the perovskite solution to reconstruct the crystallization
Jiong Li, Xiangdong Shi, Yingfan Liu, Jianbo Zhao, Fenghua Chen, Chenghao Duan, Xingxing Gu, Keyou Yan   +7 more
wiley   +1 more source

Synergistic Anode/Cathode Optimization Engineering by Hierarchical Porous N‐Doped Carbon Fibers for Efficient Zinc Batteries

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The poor Zn chemistry of Zn metal anode and sluggish reaction kinetics of cathodes at high mass loadings are two crucial issues for hindering the application of aqueous Zn‐ion batteries (AZIBs). Herein, the hierarchical porous N‐doped carbon fibers (HPNCFs) were proposed to simultaneously optimize the reversibility of Zn plating/stripping of ...
Song Yang, Qing Wu, Fu‐Sheng Luo, Jin‐Long Zhang, Ze‐Yu Yan, Xiu‐De Liu, Jun Huang   +6 more
wiley   +1 more source

Surface Sulfate Modification Promoted Excitons Extraction of BiOBr Nanosheets for Efficient 1O2 Photosynthesis and Chlorophenols Dechlorination

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi, Zhi‐Ping Yang, Chen‐Chen Zhang, Pin‐Ji Chen, Hao‐Yang Fu, Xu‐Peng Liu, Hao Li, Bo Lai, Li‐Zhi Zhang   +8 more
wiley   +1 more source

地下电力电缆群敷设水冷管道模型的研究

Gaoya dianqi, 2018
随着城市用电负荷需求的日益增大,采取适当的措施提高电缆群的载流能力有重要研究意义。文中主要研究了在电缆群中敷设水冷管道这种增容方式,即水冷管道中对流换热带走电缆群产生的热量,使得电缆群区域降温,从而提高电缆群载流量。首先建立电缆群敷设水冷管道模型,然后对水流体的流动因素进行有限元分析,并计算载流量,从而验证这种方法对提升电缆载流量的效果。通过Ansys仿真计算的结果数据可知,对于水冷管道模型,水流温度及流速是影响电缆群载流量提升效果的主因,其改善电缆群的散热效果。电缆群载流量的提高可达28%。
郑雁翎, 李维新, 冯元, 王亚云, 仪涛   +4 more
doaj  

Crystallization Engineering of GaAs/Sb2S3 Core‐Shell Nanowires for Gain Manipulation of Photodetectors

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Photodetectors, based on GaAs nanowires (NWs), hold significant promise in the fields of high integration micro‐ and nano‐optoelectronics applications because of their outstanding electronic and optical properties. To date, significant efforts have been directed toward enhancing the performance of photodetectors, aiming for high detectivity ...
Yu Hao, Xuan Fang, Deng‐Kui Wang, Zhen Wang, Dan Fang, Yong Wang, Xi‐Yao Fu, Jie Fan, Hai‐Zhu Wang, Yong‐Gang Zou, Xiao‐Hua Wang, Jin‐Hua Li   +11 more
wiley   +1 more source

Interfacial Dipole Engineering With Taurine‐Modified SnO2 Electron Transport Layer for Efficient and Stable Perovskite Solar Cells

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Organic‐inorganic metal halide perovskite solar cells (PSCs) are promising for photovoltaics due to their excellent optoelectronic properties. However, achieving high efficiency and stability remains challenging, mainly due to defects and energy losses at the electron transport layer (ETL)/perovskite interface.
Jiahui Jin, Yutao Li, Xiaoye Liu, Xinxuan Yang, Fengyou Wang, Lin Fan, Xiaoyan Liu, Jinghai Yang, Lili Yang   +8 more
wiley   +1 more source

Interfacial Electronic Interactions in Hierarchical Heterostructure Electrocatalyst for Energy‐Saving Hydrogen Production at Industrial Current Densities

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen, Boxue Wang, Xinru Zhao, Huachuan Sun, Mingpeng Chen, Qingjie Lu, Zhongge Luo, Bin Xiao, Tong Zhou, Dequan Li, Guoyang Qiu, Hao Cui, Tianwei He, Qingju Liu   +13 more
wiley   +1 more source

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

Rare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang, Yunpeng Qu, Qixuan Zeng, Xiaosi Qi, Yao Liu   +4 more
wiley   +1 more source

直流偏磁下变压器的振动噪音分析

Gaoya dianqi, 2021
分析直流偏磁对变压器造成的异常振动噪音规律是预防变压器故障的前提。为此,针对E型电力变压器,根据"铁心—绕组"模型分析了直流偏磁下变压器的振动噪音机理并利用Comsol搭建了电磁—振动—声场多物理场耦合模型,研究直流量大小、直流量从初级绕组流入和直流量从次级绕组流入两种情况下,直流偏磁对不同运行状况变压器的振动噪音规律和对绕组电压电流波形的影响。研究表明:直流量从初级绕组流入对空载变压器的影响最大,随直流量的增加铁心绕组上的振动噪音加剧且振动噪音最大值分布在铁心上 ...
吴静, 吴世宝, 邓维, 董凯, 朱娟, 祁玉龙, 罗日成   +6 more
doaj