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

Kilic, Bayram; Gedik, Nebi; Mucur, Selin Piravadilh; Hergul, Ahmet Serhan; Gur, Emre


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{
  "DOI": "10.1016/j.mssp.2014.12.020", 
  "abstract": "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.", 
  "author": [
    {
      "family": "Kilic", 
      "given": " Bayram"
    }, 
    {
      "family": "Gedik", 
      "given": " Nebi"
    }, 
    {
      "family": "Mucur", 
      "given": " Selin Piravadilh"
    }, 
    {
      "family": "Hergul", 
      "given": " Ahmet Serhan"
    }, 
    {
      "family": "Gur", 
      "given": " Emre"
    }
  ], 
  "container_title": "MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING", 
  "id": "78111", 
  "issued": {
    "date-parts": [
      [
        2015, 
        1, 
        1
      ]
    ]
  }, 
  "page": "363-371", 
  "title": "Band gap engineering and modifying surface of TiO2 nanostructures by Fe2O3 for enhanced-performance of dye sensitized solar cell", 
  "type": "article-journal", 
  "volume": "31"
}
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