Effect Of Long Selenization Time On Co Films Under A Low Temperature Of 300 Degrees C To Synthesize A Nanostructure Cose2 And Optical Properties
INTERNATIONAL CONFERENCE ON NANOMATERIALS AND BIOMATERIALS (ICNB 2017)(2018)
Abstract
This work investigates a simple and non-toxic method to transform pre-deposited amorphous Co film into CoSe2 films at a fixed, low temperature of 300 degrees C. Single CoSe2-phase films having good crystallinity were obtained at a selenisation time >= 24 hours. A nanostructure CoSe2 having two different nano-morphological layers was observed. The CoSe2 films (72 hours) observed a large absorption and a direct band gap.
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Key words
co films,nanostructure,long selenization time,optical properties
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