نتایج جستجو برای: tin dioxide sno2 110

تعداد نتایج: 150716  

2008
Wei Chen Debraj Ghosh Shaowei Chen

Tin oxide nanoparticles were synthesized by electrochemical oxidation of a tin metal sheet in a nonaqueous electrolyte containing NH4F. The as-prepared nanoparticles were then thermally annealed at 700 C for 6 h. The resulting particles were characterized by a variety of experimental techniques, including X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Raman, ...

Journal: :Physical Review Letters 2017

2004
R E Presley D A Keszler

A SnO2 transparent thin-film transistor (TTFT) is demonstrated. The SnO2 channel layer is deposited by RF magnetron sputtering and then rapid thermal annealed in O2 at 600 ̊C. The TTFT is highly transparent, and enhancement-mode behaviour is achieved by employing a very thin channel layer (10–20 nm). Maximum field-effect mobilities of 0.8 cm2 V−1 s−1 and 2.0 cm2 V−1 s−1 are obtained for enhancem...

2015
Cristina Botas Daniel Carriazo Gurpreet Singh Teófilo Rojo

With the objective of developing new advanced composite materials that can be used as anodes for lithium ion batteries (LIBs), herein we describe the synthesis of a novel three dimensional (3D) macroporous foams formed by reduced graphene oxide (rGO) and submicron tin-based particles. The aerogels were obtained by freeze/freeze-drying a suspension of graphene oxide (GO) in the presence of a tin...

Journal: :Physical chemistry chemical physics : PCCP 2017
Gregory Gibson Ziyun Wang Christopher Hardacre Wen-Feng Lin

The H2O splitting mechanism is a very attractive alternative used in electrochemistry for the formation of O3. The most efficient catalysts employed for this reaction at room temperature are SnO2-based, in particular the Ni/Sb-SnO2 catalyst. In order to investigate the H2O splitting mechanism density functional theory (DFT) was performed on a Ni/Sb-SnO2 surface with oxygen vacancies. By calcula...

Journal: :Communications in Physics 2021

In this study, tin oxide /reduced graphene (SnO2/rGO) samples were prepared by hydrothermal method. The structural characteristics, phase composition, morphology, and size of the studied X-ray diffraction, Raman scattering spectroscopy, scanning electron microscopy. Results showed that SnO2 nanoparticles had tetragonal rutile crystal structure with a ranging from 4.65 nm to 5.77 when pH was inc...

2014
Lado Filipovic Siegfried Selberherr Giorgio C. Mutinati Elise Brunet Stephan Steinhauer Anton Köck Jordi Teva Jochen Kraft Jörg Siegert Franz Schrank Christian Gspan Werner Grogger

Metal oxide materials such as tin oxide (SnO2) show powerful gas sensing capabilities. Recently, the deposition of a thin tin oxide film at the backend of a CMOS processing sequence has enabled the manufacture of modern gas sensors. Among several potential deposition methods for SnO2, spray pyrolysis deposition has proven itself to be relatively easy to use and cost effective while providing ex...

A. Esmaeili Bafghi-Karimabad H. Safardoust L. Nejati-Moghadam M. Salavati-Niasari,

In this paper, tin dioxide nanoparticles were synthesized by a fast and simple co-precipitation method. For SnO2 preparation, we used ammonia as precipitation agent and bis (acetylacetone) ethylene diamineas as capping agent. By changing in SnCl4, acacen mole-ratio different morphologies were obtained. This semiconductor nanostructure has photo-catalyst activities and can ...

2017
Hasan A. Hadi

In this paper, formation of a nanostructure semi transparence fluoride tin oxides (FTO) by spray pyrolysis technique on porous silicon PS layer. Porous silicon PS layer was prepared by anodization of p-type silicon wafers to fabricate of the UVVisible Fluoride-doped tin oxide /Porous silicon /p-Si heterojunction photodetector. Optical properties of FTO thin films were measured. The optical band...

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