Enhanced conversion efficiency in dye-sensitized solar cells based on hydrothermally synthesized TiO2-MWCNT nanocomposites

TitleEnhanced conversion efficiency in dye-sensitized solar cells based on hydrothermally synthesized TiO2-MWCNT nanocomposites
Publication TypeJournal Article
Year of Publication2009
AuthorsMuduli, S, Lee, W, Dhas, VV, Mujawar, S, Dubey, M, Vijayamohanan, K, Han, S-H, Ogale, S
JournalACS Applied Materials & Interfaces
Volume1
Issue9
Pagination2030-2035
Date PublishedSEP
ISSN1944-8244
KeywordsCarbon nanotubes, charge transfer, Dye-sensitized solar cells, Hybrid composite, hydrothermal
Abstract

A 50 % enhancement in the conversion efficiency (4.9-7.37 %) is realized in dye-sensitized solar cells Using hydrothermally synthesized TiO2-multiwalled carbon nanotube (MWCNT) nanocomposites as compared to hydrothermally synthesized TiO2 without MWCNT and Degussa P25. Several characterizations have been employed to reveal the nature of the modification imparted to the MWCNTs under hydrothermal processing conditions and the resulting TiO2-MWCNT conjugation through -COOH groups. Efficient charge transfer In the nanocomposite and efficient electron transport by MWCNT (significantly higher Incident-photon-to-current conversion efficiency) are suggested to be the possible reasons for the enhancement.

DOI10.1021/am900396m
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)

2.925

Divison category: 
Physical and Materials Chemistry