Abstract
The present study focuses on enhancing the efficiency of bifacial and back-illuminated dye-sensitized solar cells (DSCs) by incorporating SiO 2 mesoporous layer on TiO2 electrode. The performance of DSCs is investigated by UV-visible spectroscopy, incident photon conversion efficiency (IPCE) and electrochemical impedance spectroscopy (EIS). It is observed that the current ratio of back- to front-DSC increases with the increase in the thickness of SiO2 layer, which in turn influences the incident light to dyed-TiO2 electrode, especially in the wavelength of 400-600 nm. The Ti foil based flexible small (0.28 cm2) and sub-module (5 cm × 10 cm) DSCs having this modification show high conversion efficiencies of 6.76 and 5.54% respectively under 100 mW cm -2 (AM 1.5).
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Journal of Power Sources |
Volume | 232 |
DOIs | |
State | Published - 2013 |
Externally published | Yes |
Keywords
- Back-illuminated
- Dye-sensitized solar cells
- Mesoporous film
- Ti foil