تصفح حسب المؤلف "Amer, Ahmad W."
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On the nature of defect states in tungstate nanoflake arrays as promising photoanodes in solar fuel cells
Mohamed, Aya M.; Amer, Ahmad W.; Alqaradawi, Siham Y.; Allam, Nageh K. ( Royal Society of Chemistry , 2016 , Article)An electrochemical method is presented to study the nature of the defect states in sub-stoichiometric tungsten oxide nanoflake photoanodes used in water splitting. First, stoichiometric/sub-stoichiometric tungstate nanoflake ... -
Self-assembled zirconia nanotube arrays: Fabrication mechanism, energy consideration and optical activity
Amer, Ahmad W.; Mohamed, Seifallah M.; Hafez, Ahmed M.; Alqaradawi, Siham Y.; Aljaber, Amina S.; Allam, Nageh K.... more authors ... less authors ( Royal Society of Chemistry , 2014 , Article)We present a comprehensive roadmap for the precise control of the dimensions and optical properties of anodically fabricated zirconia nanotubes. The effects of anodization time, applied voltage, solvent composition, as ...