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Study of band gap of silver nanoparticles - Titanium dioxide nanocomposites
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نویسنده
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barone p. ,stranges f. ,barberio m. ,renzelli d. ,bonanno a. ,xu f.
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منبع
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journal of chemistry - 2014 - دوره : 2014 - شماره : 0
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چکیده
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The optical and chemical properties of ag/tio2 nanocomposites were investigated to explore the possibilities of incorporating these new materials in gratzel photoelectrochemical cells. the nanocomposites were obtained doping tio2,in both allotropic species anatase and rutile,with silver nanoparticles (grown by laser ablation process). x-ray photoelectron data indicate the absence of ag-ti chemical bonds,while measurements of photoluminescence and optical absorbance in uv-visible range show a quench in photoluminescence emission of about 50% and an increase in visible absorbance of about 20%. measurements of optical band gap,obtained by tauc's equation,indicate a variation of about 1.6 ev. © 2014 p. barone et al.
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آدرس
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physics department,university of calabria,via bucci 31c,87036 rende,italy,biology,ecology and earth science department,university of calabria,via bucci 4b, Italy, physics department,university of calabria,via bucci 31c,87036 rende,italy,biology,ecology and earth science department,university of calabria,via bucci 4b, Italy, physics department,university of calabria,via bucci 31c,87036 rende,italy,biology,ecology and earth science department,university of calabria,via bucci 4b, Italy, physics department,university of calabria,via bucci 31c, Italy, physics department,university of calabria,via bucci 31c, Italy, physics department,university of calabria,via bucci 31c, Italy
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Authors
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