"The role of cobalt doping on the optical and structural properties of Mn3O4 nanostructured thin films obtained by SILAR technique", Özkan Bayram, Erdal İğman, Harun Güney, Önder Şimşek, Superlattices And Microstructures, 2019

"Effect of doping concentration on the structural and optical properties of nanostructured Cu-doped Mn3O4 films obtained by SILAR technique", Özkan Bayram, Harun Güney, Mehmet Emrah Ertarğın, Erdal İğman, Önder Şimşek, Applied Physics a, 2018

"CVD VE PECVD TEKNİĞİ KULLANILARAK BAKIR FOLYOLAR ÜZERİNDE GRAFEN NANOYAPILARIN ELDE EDİLMESİ VE KARAKTERİZASYONU", Özkan Bayram, Erdal İğman, Önder Şimşek, Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi, 2019

"Investigation of structural, morphological and optical properties of Nickel-doped Zinc oxide thin films fabricated by co-sputtering", Özkan Bayram, Erdal İğman, Önder Şimşek, Emre Şener, Journal of Materials Science, 2019

"Photovoltaic performance of non-covalent functionalized single-layer graphene in dye-sensitized solar cells (DSSCs)", Erdal İğman, Özkan Bayram, Ahmet Mavi, Uğur Cem Hasar, Önder Şimşek, Journal of Materials Science

"Graphene/polyaniline nanocomposite as platinum-free counter electrode material for dye-sensitized solar cell: its fabrication and photovoltaic performance", Özkan Bayram, Erdal İğman, Harun Güney, Mustafa Tolga Yurtcan, Çağrı Çırak, Uğur Cem Hasar, Önder Şimşek, Zeynep Demir, Journal of Materials Science