A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications
This study examined the absorbance of ruthenium-doped nanocrystalline titanium dioxide and its application to dye-sensitized solar cells (DSSCs). Avaspec 2.1 spectrophotometer revealed that ruthenium-dyed TiO2 can absorb light beyond the ultraviolet region. The well-known Tauc model was employed to...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
D.Ghitu Institute of Electronic Engineering and Nanotechnologies
2013-06-01
|
| Series: | Moldavian Journal of the Physical Sciences |
| Online Access: | https://mjps.nanotech.md/archive/2013/article/29765 |
| _version_ | 1830274416538288128 |
|---|---|
| author | Ozuomba, J. Ekpunobi, A. |
| author_facet | Ozuomba, J. Ekpunobi, A. |
| author_sort | Ozuomba, J. |
| collection | DOAJ |
| description | This study examined the absorbance of ruthenium-doped nanocrystalline titanium dioxide and its application to dye-sensitized solar cells (DSSCs). Avaspec 2.1 spectrophotometer revealed that ruthenium-dyed TiO2 can absorb light beyond the ultraviolet region. The well-known Tauc model was employed to determine the optical band gap. We observed that the optical band gap of the sensitized TiO2 was reduced, thus enabling the absorbance of the wide-band-gap semiconductor in the visible region. The energy conversion efficiency of the DSSC prepared from the ruthenium-dyed TiO2 anode electrode was 1.71%. |
| first_indexed | 2024-12-19T00:04:50Z |
| format | Article |
| id | doaj.art-0486946d0cc9468da5053bc8f6fd57cb |
| institution | Directory Open Access Journal |
| issn | 1810-648X 2537-6365 |
| language | English |
| last_indexed | 2024-12-19T00:04:50Z |
| publishDate | 2013-06-01 |
| publisher | D.Ghitu Institute of Electronic Engineering and Nanotechnologies |
| record_format | Article |
| series | Moldavian Journal of the Physical Sciences |
| spelling | doaj.art-0486946d0cc9468da5053bc8f6fd57cb2022-12-21T20:46:17ZengD.Ghitu Institute of Electronic Engineering and NanotechnologiesMoldavian Journal of the Physical Sciences1810-648X2537-63652013-06-01123-416517129765A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applicationsOzuomba, J.Ekpunobi, A.This study examined the absorbance of ruthenium-doped nanocrystalline titanium dioxide and its application to dye-sensitized solar cells (DSSCs). Avaspec 2.1 spectrophotometer revealed that ruthenium-dyed TiO2 can absorb light beyond the ultraviolet region. The well-known Tauc model was employed to determine the optical band gap. We observed that the optical band gap of the sensitized TiO2 was reduced, thus enabling the absorbance of the wide-band-gap semiconductor in the visible region. The energy conversion efficiency of the DSSC prepared from the ruthenium-dyed TiO2 anode electrode was 1.71%.https://mjps.nanotech.md/archive/2013/article/29765 |
| spellingShingle | Ozuomba, J. Ekpunobi, A. A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications Moldavian Journal of the Physical Sciences |
| title | A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| title_full | A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| title_fullStr | A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| title_full_unstemmed | A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| title_short | A study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| title_sort | study of the band gap of sensitized titanium dioxide nanoparticles and their photovoltaic applications |
| url | https://mjps.nanotech.md/archive/2013/article/29765 |
| work_keys_str_mv | AT ozuombaj astudyofthebandgapofsensitizedtitaniumdioxidenanoparticlesandtheirphotovoltaicapplications AT ekpunobia astudyofthebandgapofsensitizedtitaniumdioxidenanoparticlesandtheirphotovoltaicapplications AT ozuombaj studyofthebandgapofsensitizedtitaniumdioxidenanoparticlesandtheirphotovoltaicapplications AT ekpunobia studyofthebandgapofsensitizedtitaniumdioxidenanoparticlesandtheirphotovoltaicapplications |