Journal
BULLETIN OF MATERIALS SCIENCE
Volume 37, Issue 3, Pages 685-693Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-014-0678-x
Keywords
Optically stimulated luminescence; DSSC; zinc oxide; carbon-doped aluminium oxide
Categories
Funding
- Department of Science and Technology, the Government of India
Ask authors/readers for more resources
In contrast to the conventional DSSC systems, where the dye molecules are used as light harvesting material, here a solid-state absorber was used as a sensitizer in conjunction with the dye. The materials like ZnO and Al2O3: C, which will show optically stimulated luminescence (OSL) upon irradiation were used as extremely thin absorber layers. This novel architecture allows broader spectral absorption, an increase in photocurrent, and hence, an improved efficiency because of the mobility of the trapped electrons in the absorber material after irradiation, to the TiO2 conduction band. Nanocrystalline mesoporous TiO2 photoanodes were fabricated using these solid-state absorber materials and after irradiation, a few number of samples were co-sensitized with N719 dye. On comparing both the dye loaded photoanodes (ZnO/TiO2 and Al2O3: C/TiO2), it can be concluded from the present studies that, the Al2O3: C is superior to ZnO under photon irradiation. Al2O3 : C is more sensitive to photon irradiation than ZnO and hence there can be more trap centres produced in Al2O3 : C.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available