Spectral broadening in quantum dots-sensitized photoelectrochemical solar cells based on CdSe and Mg-doped CdSe nanocrystals |
| |
| Affiliation: | 1. Department of Chemistry, Hanyang University, Haengdang-dong 17, Sungdong-ku, Seoul 133-791, South Korea;2. Department of Materials Science and Engineering, Korea University, Seoul 136-713, South Korea;3. Department of Chemistry, Daejin University, Pochun-si, Kyunggi-do 487-711, South Korea |
| |
| Abstract: | In order to absorb a broad spectrum in visible region, a co-sensitized TiO2 electrode was prepared by CdSe and Mg-doped CdSe quantum dots (Q dots). The power conversion efficiency of the co-sensitized Q dots photoelectrochemical solar cells (PECs) showed 1.03% under air mass 1.5 condition (I = 100 mW/cm2), which is higher than that of individual Q dots-sensitized PECs. The incident-photon-to-current conversion efficiency of the co-sensitized PECs showed absorption peaks at 541 and 578 nm corresponding to the two Q dots and displayed a broad spectral response over the entire visible spectrum in the 500–600 nm wavelength domains. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
