Nanocrystalline ZnO Flakes for Photovoltaic Device Applications

Authors: Al-Heniti, S.; Umar, Ahmad; Singh, Pragya; Sayari, A.; Al-Hajry, A.; Al-Ghamdi, A. A.

Source: Advanced Science Letters, Volume 3, Number 4, December 2010 , pp. 543-547(5)

Publisher: American Scientific Publishers

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Nanocrystalline ZnO flakes were synthesized via solution process using zinc acetate and diethylamine under refluxing at 85 °C for 4 hrs. The crystalline and wurtzite hexagonal phase of the synthesized ZnO flakes were characterized by UV-visible, FTIR and Raman-scattering. For the photovoltaic device applications, the ZnO flakes were used as photo-anode materials to fabricate dye-sensitized solar cells (DSSCs). The fabricated DSSC exhibited an overall light to electricity conversion efficiency (η) of 0.99%. A short-circuit current (J SC) of 2.33 mA/cm2, open-circuit voltage (V OC) of 0.670 V and fill factor (FF) of 0.59, was achieved from the fabricated nanocrystalline ZnO flakes based DSSCs.

Document Type: Research Article


Publication date: December 1, 2010

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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