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Title: Probing the morphology-device relation of Fe 2O 3 nanostructures towards photovoltaic and sensing applications
Authors: Agarwala, S.
Lim, Z.H. 
Nicholson, E.
Ho, G.W. 
Issue Date: 7-Jan-2012
Citation: Agarwala, S., Lim, Z.H., Nicholson, E., Ho, G.W. (2012-01-07). Probing the morphology-device relation of Fe 2O 3 nanostructures towards photovoltaic and sensing applications. Nanoscale 4 (1) : 194-205. ScholarBank@NUS Repository.
Abstract: A lot of research on nanomaterials has been carried out in recent years. However, there is still a lack of nanostructures that have a combination of superior properties; both efficient electron transport and high surface area. Here, the authors have tried to develop hybrid α-Fe 2O 3 flower-like morphology which exhibits both superior electron transport and high surface area. Intrigued by the unique properties of Fe 2O 3 at the nanoscale and its abundance in nature, we have demonstrated a facile template-free solution based synthesis of hybrid α-Fe 2O 3 comprising nanopetals nucleating radially from a 3D core. Due to its simplicity, the synthesis process can be easily reproduced and scaled up. We carried out in-depth studies on gas sensing and dye-sensitized solar cell (DSSC) device characterization so as to gain an understanding of how surface area and transport properties are affected by variation in morphology. The hybrid α-Fe 2O 3 nanostructures are studied as potential candidates for gas sensors and for the first time as a working electrode for DSSC.
Source Title: Nanoscale
ISSN: 20403364
DOI: 10.1039/c1nr10856e
Appears in Collections:Staff Publications

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