Effect of Growth Parameters on SnO2 Nanowires Growth by Electron Beam Evaporation Method

International Conference on Advances in Materials and Manufacturing Applications 2017

Rakesh Kumar, R.^1,2 ; Manjula, Y.^1 ; Narasimha Rao, K.^2

Dept. Of. Physics, School of Technology, GITAM University, Hyderabad

502329, India^1

Dept. Of. Instrumentation and Applied Physics, Indian Institute of Science, Bangalore

560012, India^2

关键词: Different substrates;    Electron beam evaporation methods;    Evaporation rate;    Gas sensing response;    Photocatalytic activities;    SnO2 NWs;    Substrate temperature;    VLS growth;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012018/pdf
DOI  :  10.1088/1757-899X/310/1/012018

来源: IOP

【 摘 要 】

Tin oxide (SnO2) nanowires were synthesized via catalyst assisted VLS growth mechanism by the electron beam evaporation method at a growth temperature of 450 °C. The effects of growth parameters such as evaporation rate of Tin, catalyst film thickness, and different types of substrates on the growth of SnO2nanowires were studied. Nanowires (NWs) growth was completely seized at higher tin evaporation rates due to the inability of the catalyst particle to initiate the NWs growth. Nanowires diameters were able to tune with catalyst film thickness. Nanowires growth was completely absent at higher catalyst film thickness due to agglomeration of the catalyst film. Optimum growth parameters for SnO2NWs were presented. Nanocomposites such as Zinc oxide - SnO2, Graphene oxide sheets- SnO2and Graphene nanosheets-SnO2were able to synthesize at a lower substrate temperature of 450 °C. These nanocompsoites will be useful in enhancing the capacity of Li-ion batteries, the gas sensing response and also useful in increasing the photo catalytic activity.