Songül F AT VAROL is currently Assistant Professor in Energy Systems Engineering at Giresun University. She pursues a broad range of research interests that include Solar Cells, Schottky Diodes, Light Emitting Diodes (LEDs), Organic Light Emitting Diodes (OLEDs), PN Homojunctions / Heterojunctions,Thin Films, Nanofabrication/Nanocharacterization.