Produce of Graphene Iron Pyrite FeS2 Thin Films Counter Electrode for Dye Sensitized Solar Cell     
Yazarlar (8)
Bayram Kilic
Yalova Üniversitesi, Türkiye
Prof. Dr. Sunay TÜRKDOĞAN Yalova Üniversitesi, Türkiye
Oguz Can Ozer
Yalova Üniversitesi, Türkiye
Mansur Asgin
Yalova Üniversitesi, Türkiye
Ozge Bayrakli
Middle East Technical University (Metu), Türkiye
Gokhan Surucu
Kırşehir Ahi Evran Üniversitesi, Türkiye
Aykut Astam
Erzincan Binali Yıldırım Üniversitesi, Türkiye
Duygu Ekinci
Atatürk Üniversitesi, Türkiye
Makale Türü Diğer (Teknik, not, yorum, vaka takdimi, editöre mektup, özet, kitap krıtiği, araştırma notu, bilirkişi raporu ve benzeri)
Makale Alt Türü SCI, SSCI, AHCI, SCI-Exp dergilerinde yayınlanan teknik not, editöre mektup, tartışma, vaka takdimi ve özet türünden makale
Dergi Adı Materials Letters
Dergi ISSN 0167-577X Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 06-2016
Cilt No 185
Sayı 1
Sayfalar 584 / 587
DOI Numarası 10.1016/j.matlet.2016.06.069
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0167577X16310254
Özet
Dye-sensitized solar cells (DSSCs) provide a low cost alternative to the conventional solar cells due to their easy and inexpensive device fabrication steps. Generally, F:SnO2 (FTO) conductive glass with a thin layer coating of platinum (Pt) is used as a counter electrode (CE) in DSSCs. Since Pt is rare and therefore expensive metal, we were looking for a way to produce a new counter electrode based on graphene/iron pyrite (FeS2) thin films as an alternative to the Pt:FTO. In combination with a TiO2 mesoporous photoanode and an I3/I- redox electrolyte, graphene/FeS2 CE based DSSC shows η=7.43% energy conversion efficiency under 1 sun illumination (100 mW/cm2, AM 1.5G) which is approximately 16.1% higher than conventional Pt CE (η=6.40%). External Quantum Efficiency (EQE) is found to be shifted upward when graphene/FeS2 is used as CE in the place of Pt CE. The excellent performance of the graphene/FeS2 CE makes it a very promising alternative to costly Pt in DSSCs.
Anahtar Kelimeler
Graphene | Tio(2) | DSSC | Pyrite (FeS2) | Counter electrode