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Microwavw Solution Sythesis and Characterization of SnO2 nanocrystallites
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نویسنده
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Zahedi S. ,Boroojerdian P. ,Morshedian M. ,Karimi T. ,Kulkarni S.K.
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منبع
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journal of nanostructure in chemistry - 2010 - دوره : 1 - شماره : 3 - صفحه:173 -179
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چکیده
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Semiconductor nanocrystallites exhibit size dependent properties due to quantum confinement effect that are not present in their bulk counterparts. in this work, high-purity of extremely small powders of sno2 nanocrystallites with crystallite sizes ~1.1 have been synthesized by a solution process, in which amorphous precipitate of sn+4 is crystallized with microwave heating. the particles size varied from ~1.1 to 2.7 nm. based on xrd analyses, the particle size, crystal structure and parity of samples are realized. uv-vis measurement showed that, for sno2 nanocrystallites, excitonic peaks are obtained ~237, 250 and 279 nm corresponding to ~1.1, 2 and 2.7 nm sizes respectively. stm analyses showed that, the nanocrystallites are highly monodisperse of spherical shape.
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کلیدواژه
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Tin Oxide ,Nanocrystallites ,Microwave heating ,Semiconductors ,SnO2
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آدرس
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islamic azad university, Physics Department, ایران, malekeashtar university of technology, Physics Department, ایران, islamic azad university, Physics Department, ایران, islamic azad university, Physics Department, ایران, Institute of Science Education & Research, Indian
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پست الکترونیکی
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zahedi.saeid@yahoo.com
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Authors
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