title: Eco-friendly synthesis of core-shell structured (TiO2/Li2CO3) nanomaterials for low cost dye-sensitized solar cells.
abstract: Core-shell structured TiO2/Li2CO3electrode was successfully synthesized by eco-friendly solution growth technique. TiO2/Li2CO3electrodes were characterized using X-ray Diffractometer (XRD), Scanning electron microscopy (SEM) and photocurrent-voltage measurements. The synthesized core-shell electrode material was sensitized with tetrabutylammonium cis-di(thiocyanato)-N,N'-bis(4-carboxylato-4'-carboxylic acid-2,2'-bipyridine)ruthenate(II) (N-719). The performance of dye-sensitized solar cells (DSCs) based on N719 dye modified TiO2/Li2CO3electrodes was investigated. The effect of various shell thickness on the photovoltaic performance of the core-shell structured electrode is also investigated. We found that Li2CO3shells of all thicknesses perform as inert barriers which improve open-circuit voltage (Voc) of the DSCs. The energy conversion efficiency was greatly dependent on the thickness of Li2CO3on TiO2film, and the highest efficiency of 3.7% was achieved at the optimum Li2CO3shell layer.
authors: Department of Energy Science, Alagappa University, Karaikudi 630004, Tamil Nadu, India. Electronic address: skchamy@gmail.com.
authors: S
authors: S
authors: Karuppuchamy
authors: Department of Energy Science, Alagappa University, Karaikudi 630004, Tamil Nadu, India.
authors: C
authors: C
authors: Brundha
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D004566:Electrodes; D007477:Ions; D008094:Lithium / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010777:Photochemistry; D012993:Solar Energy; D014025:Titanium / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D007477:Ions; C009495:titanium dioxide; D008094:Lithium; D014025:Titanium
keywords: Core–shell; Dye-sensitized solar cell; Eco-friendly method; Nanomaterials