Investigation of TiO2 - multi-walled carbon nanotubes (MWCNTs) composite as an effective photo anode in dye sensitized solar cell
Abstract
In this work, we report the synthesis of MWCNTs incorporated TiO2 nanotubes (TNTs) to make a hybrid nanocomposite of TNT - MWCNTs. The as-synthesized TNT - MWCNTs composite structural, optical, elemental analysis was characterized by using different techniques such as X-ray diffraction (XRD), UV-visible spectroscopy, and energy dispersive spectroscopy (EDAX), elemental mapping. The morphology and formation of TiO2 - MWCNTs composite nanotubes was confirmed from electron microscopy techniques viz., field emission scanning electron microscope (FE-SEM) and high-resolution transmission electron microscope (HR-TEM). The effect of concentration of MWCNTs in TNT-MWCNT photoanode on the performance for dye-sensitized solar cells (DSSCs) was investigated. The performance of DSSCs were evaluated by measuring photocurrent voltage (I-V) characteristics and electrochemical impedance spectroscopic (EIS) and found that the power conversion efficiency of DSSC depends on the concentration MWCNT in the photoanode. DSSC fabricated using 6 wt % of MWCNT with respect to TiO2 containing nanocomposite as photoanode has shown high power conversion efficiency (PCE) of 1.99%.
- Publication:
-
American Institute of Physics Conference Series
- Pub Date:
- October 2020
- DOI:
- 10.1063/5.0019813
- Bibcode:
- 2020AIPC.2269c0115A