Emerging Materials Research最新文献

Performance enhancement of Sb2Se3 solar cell with IGZO and n-ZnO as electron transport layers 以 IGZO 和 n-ZnO 作为电子传输层的 Sb2Se3 太阳能电池的性能提升

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-04-18 DOI: 10.1680/jemmr.23.00019

Pooja Chaudhary, Rajeev Kumar Chauhan, Rajan Mishra

{"title":"Performance enhancement of Sb2Se3 solar cell with IGZO and n-ZnO as electron transport layers","authors":"Pooja Chaudhary, Rajeev Kumar Chauhan, Rajan Mishra","doi":"10.1680/jemmr.23.00019","DOIUrl":"https://doi.org/10.1680/jemmr.23.00019","url":null,"abstract":"A prototype of an antimony (III) selenide (Sb2Se3) solar cell with different electron transport layers (ETLs) was simulated using the Solar Cell Capacitance Simulator (SCAPS) software. The impact of two individual ETLs – namely, indium gallium zinc oxide (IGZO) and n-type zinc oxide (n-ZnO) – was analyzed, and it was found out that n-ZnO was best for the ETL. The n-ZnO, antimony (III) selenide and Indium gallium zinc oxide (IGZO) layers in the newly proposed structure have respective thicknesses of 50, 300 and 20 nm. To achieve the optimum performance of this prototype, the acceptor concentration of copper (II) oxide is taken as 1018 cm−2 and the donor concentration of n-ZnO is taken as 1020 cm−2. The defect densities at antimony (III) selenide and antimony (III) selenide/n-ZnO are taken as 1013 and 1010 cm−2, respectively. They play a crucial part in device performance. With the optimized structure, a maximum power conversion efficiency of up to 31.72% (V OC = 1.148 V, J SC = 48.30 mA/cm2 and fill factor = 88.50%) is obtained with n-ZnO as the ETL. For effective results, the defect densities at both interfaces are taken as 109 cm−2, and maximum efficiency is achieved. Numerical analysis of the proposed structure and study of various parameters such as thickness variation at the absorber layer, series resistance and temperature variation, defect density, metal function and interface density variation were done.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140826699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

The shape recovery behavior of compressively deformed Fe–Mn–Si–Cr–Ni alloys 压缩变形铁-锰-硅-铬-镍合金的形状恢复行为

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-04-16 DOI: 10.1680/jemmr.23.00090

A Syed Bava Bakrudeen, D Jeyasimman

引用次数: 0

Study of a mechano-electrochemical model: a numerical and experimental approach 机械电化学模型研究：数值和实验方法

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-04-05 DOI: 10.1680/jemmr.22.00179

Shengli Lv, Yuanyang Miao, Wei Zhang, Tirumalai S Srivatsan, Xiaosheng Gao

引用次数: 0

Preparation and characterization of expanded dickite/decanoic acid phase-change materials 膨润土/癸酸相变材料的制备与表征

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-04-04 DOI: 10.1680/jemmr.22.00218

Hao Su, Zhonghua Ma, Mingtao Ding, Ye Li, Lianfa Dang, Kuo Yang, Fangfei Li, Bing Xue

{"title":"Preparation and characterization of expanded dickite/decanoic acid phase-change materials","authors":"Hao Su, Zhonghua Ma, Mingtao Ding, Ye Li, Lianfa Dang, Kuo Yang, Fangfei Li, Bing Xue","doi":"10.1680/jemmr.22.00218","DOIUrl":"https://doi.org/10.1680/jemmr.22.00218","url":null,"abstract":"The leakage of phase-change materials presents a significant challenge that impedes their application. Loading porous materials onto phase-change materials is an effective approach to addressing this issue. In this study, porous expanded dickite as a carrier was utilized to load decanoic acid and create a composite phase-change material. The loading content of decanoic acid was varied to obtain different composite phase-change materials. Fourier transform infrared spectroscopy analysis confirmed the formation of hydrogen bonds between the expanded dickite carrier and decanoic acid. Scanning electron microscopy images and energy-dispersive X-ray spectroscopy mapping results demonstrated that decanoic acid was evenly dispersed on the expanded dickite carrier without any agglomeration. The expanded dickite carrier effectively immobilized decanoic acid through hydrogen bonding, thereby preventing leakage, as long as the loading content of decanoic acid did not exceed 60%. The higher thermal conductivity of the expanded dickite carrier promoted the thermal conductivity of the expanded dickite/decanoic acid composite phase-change materials, enhancing the responsiveness of the composite phase-change materials to ambient temperature. The composite phase-change material containing 60 wt% decanoic acid exhibited excellent endothermic/exothermic cycle stability, and after six cycles, its latent heat remained stable.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140838377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Controllable preparation and electromagnetic wave absorption performance of compressible graphene aerogels 可压缩石墨烯气凝胶的可控制备和电磁波吸收性能

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-03-04 DOI: 10.1680/jemmr.23.00015

Pingan Lu, Chenbo Liao, Dongjiu Zhang, Dongqing Liu, Mohamed M Ibrahim, Haifeng Cheng, Mohammed A Amin, Taishan Cao, Yingjun Deng, Wei Xie, Zeinhom M El-Bahy, Zhanhu Guo

{"title":"Controllable preparation and electromagnetic wave absorption performance of compressible graphene aerogels","authors":"Pingan Lu, Chenbo Liao, Dongjiu Zhang, Dongqing Liu, Mohamed M Ibrahim, Haifeng Cheng, Mohammed A Amin, Taishan Cao, Yingjun Deng, Wei Xie, Zeinhom M El-Bahy, Zhanhu Guo","doi":"10.1680/jemmr.23.00015","DOIUrl":"https://doi.org/10.1680/jemmr.23.00015","url":null,"abstract":"In this study, an easy-operation developed method was adopted to generate ultralight and compressible graphene aerogels by using graphene oxide and ammonia. By changing the process parameters, such as reduction temperature, reducing agent content and ammonia concentration, the variation laws of density and pore size of aerogel were obtained, which was conducive to realizing the controllable preparation of aerogel structure. The prepared graphene aerogel has good compressive performance and its density can reach 5.26 mg/cm3. Though repeatedly compressed 200 times under the load that is 4000 times as large as its own weight, it still maintained the structural integrity and mechanical properties. An ideal model of three-dimensional graphene aerogel was constructed, and the electromagnetic wave absorption performance was simulated by computer simulation technology (CST) microwave studio. The results show that when the thickness, pore size and height of the sheet are 1.4 mm, 5 mm and 14 mm respectively, the optimal electromagnetic wave absorption effect of −31.08 dB can be obtained, and the effects of thickness, pore size and height of the sheet on the electromagnetic wave absorption performance are revealed, which provides a reference for the structural design of aerogel with both compressibility and electromagnetic wave absorption performance.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140201253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of Mo on the σ phase precipitation behavior of super austenitic stainless steel 钼对超级奥氏体不锈钢σ相析出行为的影响

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-02-12 DOI: 10.1680/jemmr.23.00085

Qun-kun Hu, Hua-yun Du, Xiaolu Sun, Li-feng Hou, Qian Wang, Zhanhu Guo, Handong Li, Jincheng Fan, Yinghui Wei, Xiao-da Liu, Huan Wei, Xingkui Guo

引用次数: 0

Effect of Mo on the σ phase precipitation behavior of super austenitic stainless steel 钼对超级奥氏体不锈钢σ相析出行为的影响

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2024-02-12 DOI: 10.1680/jemmr.23.00085

Qun-kun Hu, Hua-yun Du, Xiaolu Sun, Li-feng Hou, Qian Wang, Zhanhu Guo, Handong Li, Jincheng Fan, Yinghui Wei, Xiao-da Liu, Huan Wei, Xingkui Guo

引用次数: 0

Chemically reduced silver nanoparticles towards photocatalytic and electrocatalytic applications 光催化和电催化应用中的化学还原银纳米粒子

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-12-01 DOI: 10.1680/jemmr.23.00064

Da-Qing Tan, Meng-Yao Dong, Yi-jie Xia, Xuan-Ye Wang, Hui-Ge Wei

{"title":"Chemically reduced silver nanoparticles towards photocatalytic and electrocatalytic applications","authors":"Da-Qing Tan, Meng-Yao Dong, Yi-jie Xia, Xuan-Ye Wang, Hui-Ge Wei","doi":"10.1680/jemmr.23.00064","DOIUrl":"https://doi.org/10.1680/jemmr.23.00064","url":null,"abstract":"In virtue of unique physiochemical properties, silver nanoparticles (AgNPs) have attracted enormous research interest for versatile applications. It is critical to study the effect of the microstructure, e.g., the shape and the size of AgNPs on their performance. Herein, AgNPs with varying shapes and sizes were synthesized by varying the manner of the reducing agent NaBH4 added (i.e., multi-step and one-step reduction methods), and then were studied for photocatalytic of dyes and electrocatalytic oxidation of glucose. The results showed that triangular, spherical, or the mixture of triangular/spherical shaped AgNPs were obtained from multi-step reduction method, whereas only spherical shaped AgNPs were yielded from the one-step reduction method. The sizes could be manipulated by changing the concentrations of the reagents or the reaction temperature. The triangular shaped and smaller-sized AgNPs were more effective for photocatalytic of dyes, and the degradation percent of methylene blue was enhanced to 95% for the Ag-TiO2 complex from 50% for pure TiO2. Moreover, the spherical shaped AgNPs with smaller size could effectively detect glucose at a very low concentration of 5 to 10 mM with an excellent glucose tolerance.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138625674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Influencing effects of variant laser pulse energy on fatigue behavior induced via LSP 变异激光脉冲能量对通过 LSP 诱导的疲劳行为的影响效应

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-12-01 DOI: 10.1680/jemmr.22.00217

Enoch Asuako Larson, Samuel Adu-Gyamfi, Abankwa Omari Ebenezer, M. Augustine, Philip Yamba, S. T. Azeko, Denis E K Dzebre

引用次数: 0

Development of composite materials using recycled high-density polyethylene plastic for railway sleepers 利用回收的高密度聚乙烯塑料开发用于铁路枕木的复合材料

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2023-12-01 DOI: 10.1680/jemmr.23.00050

Dingyi Zhang, Cheng Gao, Xiangyang Hao, Guoqing Jing, Xianmei Zhang, Yueyang Wu, Xinjie Li

{"title":"Development of composite materials using recycled high-density polyethylene plastic for railway sleepers","authors":"Dingyi Zhang, Cheng Gao, Xiangyang Hao, Guoqing Jing, Xianmei Zhang, Yueyang Wu, Xinjie Li","doi":"10.1680/jemmr.23.00050","DOIUrl":"https://doi.org/10.1680/jemmr.23.00050","url":null,"abstract":"Given the substantial increase in railway load, speed, and traffic, there is a notable demand for materials with high durability, long life, and good damping. Such materials can be realized through composite materials that contain recycled high-density polyethylene, polypropylene, mica, glass fiber, and compatibilizer. In this study, the extruded pellets, which contain the aforementioned materials and are produced via a twin-screw extruder, were utilized to assess their mechanical performances and microstructures. Composite materials containing 62.5% glass fiber and 20% polypropylene (PP) demonstrated remarkable performance for manufacturing sleepers. The addition of 62.5% glass fiber in composite materials containing PP enhanced the flexural strength, flexural modulus, tensile strength, compressive strength, and hardness by 315%, 623%, 296%, and 40%, respectively, as compared to the original composite materials containing PP without glass fiber. Furthermore, the incorporation of glass fiber and the subsequent improvements met the requirements stipulated by the Ministry of Housing and Urban-Rural Development of the People’s Republic of China and ISO standards. This favorable result can be attributed to the good compatibility between the matrix and the glass fiber, as noted from the uniform distribution of glass fiber in the resin matrix in scanning electron microscopy (SEM) images. The findings of this study highlight the potential of utilizing recycled materials in rail track manufacturing applications.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138626642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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