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Organic- Inorganic Hybrid Composite made with Cellulose- Tin oxide

S.K. Mahadeva, J. Nayak, J. Kim
Inha University, KR

Keywords: Hybrid composite, cellulose, Tin oxide, organic-inorganic composite


Cellulose is the most abundant polymer found in nature, inexhaustible, low cost, easy processing, renewable, biodegradable and biocompatible. SnO2, is a known electrical conductor that is optically transparent in the visible spectrum with a wide band gap at room temperature. Thus, a hybrid nanocomposite of cellulose and SnO2 can offer a unique property of cellulose combined with electrical properties of SnO2. These unique properties of cellulose- SnO2 hybrid nanocomposite can be capitalized to design flexible and disposable biosensors, super capacitors, fuel cell membranes and flexible displays. Preparation and characterization of cellulose- SnO2 hybrid is demonstrated in this paper. Tin oxide is crystallized in the solution and formed nanocrystal coatings on the regenerated cellulose films. The nanocrystal layers are not exfoliated from the cellulose films. Transmission electron microscope - Energy dispersive X-ray spectroscopic analysis suggests that SnO2 is not only deposited over the cellulose surface, but also nucleated and grown inside of the cellulose film to some extent. Current - voltage characteristics of the nanocomposite reveals the increase of the current level with the deposition time.
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