1. Department of Electrical Engineering and Computer Science Center for Advanced Photovoltaics and Sustainable Energy South Dakota State University Brookings SD 57007 USA
2. Physics Department Damietta University New Damietta City 34517 Egypt
3. Global Centre for Environmental Remediation (GCER) Faculty of Science The University of Newcastle University Drive Callaghan NSW 2308 Australia
4. Department of Mechanical and Aerospace Engineering Syracuse University New York NY 13244 USA