Journal of Materials Science: Materials in Electronics

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Enhanced H2 sensing performance presented by Mg doped ZnO films fabricated with a novel ITO seed layer
Journal of Materials Science: Materials in Electronics - Tập 26 - Trang 3458-3465 - 2015
K. Vijayalakshmi, A. Renitta
The present study investigates the influence of Mg doping on the H2 sensing properties of ZnO films fabricated with ITO seed layer by spray pyrolysis method. XRD results revealed that both undoped and Mg doped ZnO films were polycrystalline with a hexagonal wurtzite structure with highly oriented (002) plane perpendicular to the ITO substrate. The films were highly transparent in the visible range...... hiện toàn bộ
Low temperature sintering and microwave dielectric properties of BaO–0.6ZnO–2.9TiO2 ceramics using BaCu(B2O5) addition
Journal of Materials Science: Materials in Electronics - Tập 26 - Trang 8819-8823 - 2015
Sen Peng, Jianming Xu, Hao Li, Tongcheng Huang, Shaojie Wang, Bing Xie, Gaofeng Luo, Jianhua Zhou
In this paper, the effect of BaCu(B2O5) addition on the sintering process, phase composition, microstructure and microwave dielectric properties of BaO–0.6ZnO–2.9TiO2 ceramics were investigated by the conventional solid-state reaction technique. It was suggested that the liquid phase of BaCu(B2O5) was responsible for the densification of the BaO–0.6ZnO–2.9TiO2 ceramics at approximate 900 °C. Using...... hiện toàn bộ
Chemical spray pyrolysis synthesis of covellite copper sulphide (CuS) thin films for economical counter electrode for DSSCs
Journal of Materials Science: Materials in Electronics - Tập 29 - Trang 4940-4947 - 2017
Kiran Diwate, Sachin Rondia, Azam Mayabadi, Avinash Rokade, Ravindra Waykar, Haribhau Borate, Adinath Funde, Manish Shinde, M. B. Rajedra Prasad, Habib Pathan, Sandesh Jadkar
Thin films of covellite copper sulphide (CuS) were deposited on FTO substrates using chemical spray pyrolysis technique. Influence of Cu-to-S molar ratio on structural, surface morphological, optical and electrical properties were systematically investigated using variety of characterization techniques. Formation of covellite CuS films was confirmed by low angle-XRD and Raman spectroscopy. The fie...... hiện toàn bộ
Improving photochemical properties of Ipomea pescaprae, Imperata cylindrica (L.) Beauv, and Paspalum conjugatum Berg as photosensitizers for dye sensitized solar cells
Journal of Materials Science: Materials in Electronics - Tập 25 - Trang 4603-4611 - 2014
Eka Cahya Prima, Brian Yuliarto, Veinardi Suendo, Suyatman
This paper reports on the improving photochemical properties of natural dye using acid treatment, coadsorber addition, and dye combination. The natural pigments have been extracted from Ipomea pescaprae, Imperata cylindrica (L.) Beauv, and Paspalum conjugatum Berg containing quercetin 3-O-β-d-glucofuranoside, graminone B, and chlorophyll a. The dyes have been successfully ...... hiện toàn bộ
Facile synthesis of Cu2O/TiO2 (P25) composites with enhanced photocatalytic H2 evolution activity
Journal of Materials Science: Materials in Electronics - Tập 32 - Trang 18900-18911 - 2021
Jun-Li Chen, Shi-Yu Xie, Li-Juan Yue, Fei-Long Gong, Yong-Hui Zhang
Hydrogen (H2) produced by photocatalytic water splitting on semiconductor is a prospective way to make full use of solar energy. Here, we synthesized a composite consisting of P25 nanoparticles combined with open hollow sphere cuprous oxide (Cu2O) through a simple one-pot hydrothermal method. Cu2O/TiO2 (P25) (60 wt%, labeled as CP-60) exhibited the highest H2 evolution rate as high as 2.55 mmol g−...... hiện toàn bộ
Development of Ba0.95Sr0.05(Fe0.5Nb0.5)O3/poly(vinylidene fluoride) nanocomposites for energy storage
Journal of Materials Science: Materials in Electronics - Tập 26 - Trang 4165-4171 - 2015
Piyush Kumar Patel, K. L. Yadav, Shankar Dutta
To obtain high energy density with low dielectric loss, we synthesized polymer/ceramic composite by incorporating the giant dielectric constant material [Ba0.95Sr0.05(Fe0.5Nb0.5)O3] in a poly(vinylidene fluoride) (PVDF) polymer matrix. X-ray diffraction analysis confirmed the single phase monoclinic structure in all the composite samples. Microstructural analysis indicates that the Ba0.95Sr0.05(Fe...... hiện toàn bộ
Multi-layer ZnO assembled microspheres, microstars and microflowers with high photocatalytic performance
Journal of Materials Science: Materials in Electronics - Tập 28 - Trang 7778-7783 - 2017
Shanshan Xiao, Fei Bi, Li Zhao, Liyan Wang, Guangqing Gai
Hierarchical ZnO microspheres, microstars and microflowers were synthesized via hydrothermal process. After calcination, the zinc nitrate and urea reacted and formed into microspheres. Addition of sucrose made the consisting layers with porosity and assembled to microstars. Surfactant trisodium citrate further altered the hierarchical structure to microflowers. The phase structure, surface morphol...... hiện toàn bộ
Study of ultrafine grains formed on the microsized catalyst surface induced growth of aligned SiO2 nanowires
Journal of Materials Science: Materials in Electronics - Tập 24 - Trang 3805-3811 - 2013
Guodong Wei, Fengmei Gao, Jinju Zheng, Guangling Zhao, Weiyou Yang
In this study, beard-like and sea cucumber-like silica structures have been successfully synthesized on the Si substrate by a novel and simple water assisted method. The investigation of SEM and TEM reveals that the as-grown products possess many similar features like that they all have a very big, nearly spherical microsized body and uncountable, high density and highly oriented silica nanowire a...... hiện toàn bộ
Investigation of morphology, a.c. electrical and optical properties of nanostructured thin film of polypyrrole–bromoaluminium phthalocyanine
Journal of Materials Science: Materials in Electronics - Tập 24 - Trang 764-769 - 2012
Mohammad E. Azim-Araghi, Sobhenaz Riyazi
In this research, nanocomposite polypyrrole (PPy) + 30 % bromoaluminium phthalocyanine (BrAlPc) was prepared in our laboratory. Optical absorption and field emission scanning electron microscopy characterized the thin films. The powder of nanocomposite was characterized by X-ray diffraction. The nanocomposite PPy + 30 % BrAlPc thin film deposited on pre-cleaned glass substrate with a thickness of ...... hiện toàn bộ
Growth of thick MOD-derived CeO2−x buffer layer with less residual carbon for coated conductors
Journal of Materials Science: Materials in Electronics - Tập 26 - Trang 8949-8953 - 2015
H. Wang, L. Y. Cao, Y. Wang, L. H. Jin, J. Y. Liu, J. F. Huang, C. S. Li, Z. M. Yu, P. X. Zhang
120 nm thick CeO2−x buffer layer with less residual carbon has been prepared on biaxially textured NiW substrate using a newly developed heat-treatment route by a metal organic deposition approach. The thickness enhancement of CeO2−x buffer layer was achieved by multiple coatings. The residual carbon removal in CeO2−x buffer layer was realized by introducing CO2 into annealing atmosphere at the po...... hiện toàn bộ
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