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Issue 1, 2012
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Probing the morphology-device relation of Fe2O3 nanostructures towards photovoltaic and sensing applications

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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-Fe2O3 flower-like morphology which exhibits both superior electron transport and high surface area. Intrigued by the unique properties of Fe2O3 at the nanoscale and its abundance in nature, we have demonstrated a facile template-free solution based synthesis of hybrid α-Fe2O3 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-Fe2O3 nanostructures are studied as potential candidates for gas sensors and for the first time as a working electrode for DSSC.

Graphical abstract: Probing the morphology-device relation of Fe2O3 nanostructures towards photovoltaic and sensing applications

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Publication details

The article was received on 18 Jul 2011, accepted on 06 Oct 2011 and first published on 10 Nov 2011


Article type: Paper
DOI: 10.1039/C1NR10856E
Citation: Nanoscale, 2012,4, 194-205
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    Probing the morphology-device relation of Fe2O3 nanostructures towards photovoltaic and sensing applications

    S. Agarwala, Z. H. Lim, E. Nicholson and G. W. Ho, Nanoscale, 2012, 4, 194
    DOI: 10.1039/C1NR10856E

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