Preparation of Carbon Nanotube TiO2 Mesoporous Hybrid Photoanode with Iron Pyrite FeS2 Thin Films Counter Electrodes for Dye Sensitized Solar Cell
      
Yazarlar (8)
Prof. Dr. Bayram KILIÇ Yalova Üniversitesi, Türkiye
Prof. Dr. Sunay TÜRKDOĞAN Yalova Üniversitesi, Türkiye
Aykut Astam Erzincan Üniversitesi, Türkiye
Oğuz Can Özer Yalova Üniversitesi, Türkiye
Mansur Aşgın Yalova Üniversitesi, Türkiye
Hülya Cebeci İstanbul Teknik Üniversitesi, Türkiye
Deniz Ürk İstanbul Teknik Üniversitesi, Türkiye
Selin Paravadılı Mucur Tubıtak Marmara Research Center, Türkiye
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Scientific Reports
Dergi ISSN 2045-2322 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 05-2016
Cilt / Sayı / Sayfa 6 / 1 / 27052–0 DOI 10.1038/srep27052
Özet
Multi-walled carbon nanotube (MWCNT)/TiO2 mesoporous networks can be employed as a new alternative photoanode in dye-sensitized solar cells (DSSCs). By using the MWCNT/TiO2 mesoporous as photoanodes in DSSC, we demonstrate that the MWCNT/TiO2 mesoporous photoanode is promising alternative to standard FTO/TiO2 mesoporous based DSSC due to larger specific surface area and high electrochemical activity. We also show that iron pyrite (FeS2) thin films can be used as an efficient counter electrode (CE), an alternative to the conventional high cost Pt based CE. We are able to synthesis FeS2 nanostructures utilizing a very cheap and easy hydrothermal growth route. MWCNT/TiO2 mesoporous based DSSCs with FeS2 CE achieved a high solar conversion efficiency of 7.27% under 100 mW cm(-2) (AM 1.5G 1-Sun) simulated solar irradiance which is considerably (slightly) higher than that of A-CNT/TiO2 mesoporous based DSSCs with Pt CE. Outstanding performance of the FeS2 CE makes it a very promising choice among the various CE materials used in the conventional DSSC and it is expected to be used more often to achieve higher photon-to-electron conversion efficiencies.
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