KCS Publications

HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 30, Number 1
BKCSDE 30(1)
January 20, 2009

Title	Synthesis of Amorphous Er³⁺-Yb³⁺ Co-doped TiO₂ and Its Application as a Scattering Layer for Dye-sensitized Solar Cells
Author	Chi Hwan Han*, Hak Soo Lee, Kyung won Lee, Sang Do Han, Ishwar Singh
Keywords	Dye-sensitized solar cell, Scattering layer, Er³⁺-Yb³⁺ co-doped titanium oxide, Amorphous structure
Abstract	TiO₂ doped with Er³⁺ and Yb³⁺ was used for fabricating a scattering layer and a nano-crystalline TiO₂ electrode layer to be used in dye-sensitized solar cells. The material was prepared using a new sol-gel combustion hybrid method with acetylene black as fuel. The Er³⁺- Yb³⁺ co-doped titanium oxide powder synthesized at 700oC had embossed structure morphology with a size between 27 to 54 nm that agglomerated to produce micron size particles, as observed by the scanning electron micrographs. The XRD patterns showed that the Er³⁺- Yb³⁺ co-doped titanium oxide had an amorphous structure, while using the same method without doping Er³⁺ or Yb³⁺, TiO₂ was obtained in the crystallite form with thea dominance of rutile phase. Fabricating a bilayer structure consisting of nano-crystalline TiO₂ and the synthesized Er³⁺- Yb³⁺ co-doped titanium oxide showed better scattering property, with an overall increase of 15.6% in efficiency of the solar cell with respect to a single nano-crystalline TiO2 layer.
Page	219 - 223
Full Text	PDF

How to access to the WOL for The Bulletin of the Korean Chemical Society ?

The Bulletin of the Korean Chemical Society will be co-published with Wiley-VCH from 2015 towards. The online version of the Journal will thus be available on Wiley Online Library, Wiley(-VCH)'s global online platform.

KCS members can get a free online access to the Bulletin of the Korean Chemical Society in WOL.

Free Access to WOL