Research Article
The Reduced Recombination and the Enhanced Lifetime of Excited Electron in QDSSCs Based on Different ZnS and SiO2 Passivation
Table 3
Parameters obtained from the EIS measurements and J-V curves.
| | QDSSCs | RD (Ω) | Rd (Ω) | RS (Ω) | RSH (Ω) | Rct1 (Ω) | Rct2 (Ω) | τ (ms) |
| | TiO2/CdS | 75.3 | 57.2 | 24.56 | 2177 | 127 | 8.07 | 1.592 | | TiO2/CdSe | 60.8 | 33.4 | 27.4 | 5396 | 32.2 | 112 | 2.005 | | TiO2/CdS/CdSe with ZnS | 68.6 | 53.1 | 35.5 | 5472 | 103 | 174 | 2.016 | | TiO2/CdS/CdSe with SiO2 | 92.5 | 74.5 | 53.8 | 13,000 | 179 | 132 | 2.528 |
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