Enhanced Conversion Efficiency in Dye-Sensitized Solar Cells Based on Hydrothermally Synthesized TiO2-MWCNT Nanocomposites

被引:153
作者
Muduli, Subas [1 ]
Lee, Wonjoo [2 ]
Dhas, Vivek [1 ]
Mujawar, Sarfraj [1 ]
Dubey, Megha [1 ]
Vijayamohanan, K. [1 ]
Han, Sung-Hwan [2 ]
Ogale, Satishchandra [1 ]
机构
[1] Natl Chem Lab, Phys & Mat Chem Div, Pune 411008, Maharashtra, India
[2] Hanyang Univ, Dept Chem, Seoul 133791, South Korea
关键词
hydrothermal; dye-sensitized solar cells; carbon nanotubes; hybrid composite; charge transfer; WALL CARBON NANOTUBES; BLOCKING LAYERS; TIO2; FABRICATION; NANOPARTICLES; ELECTRODES; INTERFACES; SCAFFOLDS;
D O I
10.1021/am900396m
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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.
引用
收藏
页码:2030 / 2035
页数:6
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