Abstract
Dye-sensitized solar cells (DSSCs) were prepared by capitalizing on mesoporous P-25 TiO2 nanoparticle film sensitized with N719 dyes. Subjecting TiO2 nanoparticle films to TiCl4 treatment, the device performance was improved. More importantly, O2 plasma processing of TiO2 film that was not previously TiCl 4-treated resulted in a lower efficiency; by contrast, subsequent O2 plasma exposure after TiCl4 treatment markedly enhanced the power conversion efficiency, PCE, of DSSCs. Remarkably, with TiCl 4 and O2 plasma treatments dye-sensitized TiO2 nanoparticle solar cells produced with 21 μm thick TiO2 film illuminated under 100 mW/cm2 exhibited a PCE as high as 8.35%, twice of untreated cells of 3.86%.
Original language | English |
---|---|
Pages (from-to) | 14594-14598 |
Number of pages | 5 |
Journal | Langmuir |
Volume | 27 |
Issue number | 23 |
DOIs | |
State | Published - 6 Dec 2011 |