Improvement of the performance of dye-sensitized solar cells using Sn-doped ZnO nanoparticles

✍ Scribed by Ning Ye; Junjie Qi; Zi Qi; Xiaomei Zhang; Ya Yang; Jing Liu; Yue Zhang

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 515 KB
• Volume: 195
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/j.jpowsour.2010.03.036

✦ Synopsis

Sn-doped and undoped ZnO nanoparticles were synthesized by hydrothermal method and their performance as the photoanode of dye-sensitized solar cells (DSSCs) was investigated. Energy dispersive X-ray spectroscopy and X-ray diffraction showed that the Sn had been doped into the ZnO lattice. A red shift of photoluminescence spectra which was induced by Sn doping was observed. The photocurrent density-voltage curves of DSSCs indicated that the efficiency was increased by as high as 140% on bare-FTO substrate and 105% on ZnO compact layer/FTO substrate via Sn doping. Also the effect of the ZnO compact layer was discussed by both of Sn-doped or undoped DSSCs.