Band gap engineering and modifying surface of TiO2 nanostructures by Fe2O3 for enhanced-performance of dye sensitized solar cell

被引：35

作者：

Kilic, Bayram ^{[1
]}

Gedik, Nebi ^{[2
]}

Mucur, Selin Piravadilh ^{[3
]}

Hergul, Ahmet Serhan ^{[1
]}

Gur, Emre ^{[4
]}

机构：

[1] Yalova Univ, Fac Engn, Dept Energy Syst Engn, TR-77100 Yalova, Turkey

[2] Karadeniz Tech Univ, Fac Marine Sci, Dept Maritime Business Adm Engn, TR-61080 Trabzon, Turkey

[3] Gebze Inst Technol, Fac Sci, Dept Phys, TR-411400 Gebze, Turkey

[4] Ataturk Univ, Fac Sci, Dept Phys, TR-25240 Erzurum, Turkey

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2015年 / 31卷

关键词：

Dye sensitized solar cell; Fe2O3-modified TiO2; Nanostructures; Hydrothermal method; PHOTOCATALYTIC ACTIVITY; FILMS; TITANIA; DEPOSITION; SINGLE; DEGRADATION; PURE;

D O I：

10.1016/j.mssp.2014.12.020

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Well-crystallized Fe2O3-modified TiO2 nanoparticles are prepared by a hydrothermal method and were successfully used as the photoanode of dye-sensitized solar cell (DSSC). Structural, optical and thermal characterizations were carried out by SEM, XRD, AFM, EDAX, DTG, TG and UV-vis spectroscopy. We show that the solar conversion efficiency, incident photocurrent efficiency (IPCE) and fill factor (FF) of Fe2O3-modified TiO2 are significantly increased, about 40%, compared those of to bare TiO2. DSSC shows power conversion efficiency of 7.27% based on Fe2O3-modified TiO2 while TiO2 anatase shows 5.10% solar conversion efficiency. The high improvement in cell performance is attributed to the enhanced light harvesting and high specific surface area for adsorbing more dye molecules in Fe2O3-modified TiO2 nanostructures. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：363 / 371

页数：9

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