Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications
In this study, pure Co3O4 nano structure and doping with 4 %, and 6 % of Yttrium is successfully synthesized by hydrothermal method. The XRD examination, optical, electrical and photo sensing properties have been studied for pure and doped Co3O4 thin films. The X-ray diffraction (XRD) analysis show...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2019-03-01
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| Series: | Iraqi Journal of Physics |
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| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/408 |
| _version_ | 1811154814884642816 |
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| author | Suhad A. Hamdan |
| author_facet | Suhad A. Hamdan |
| author_sort | Suhad A. Hamdan |
| collection | DOAJ |
| description |
In this study, pure Co3O4 nano structure and doping with 4 %, and
6 % of Yttrium is successfully synthesized by hydrothermal method.
The XRD examination, optical, electrical and photo sensing
properties have been studied for pure and doped Co3O4 thin films.
The X-ray diffraction (XRD) analysis shows that all films are
polycrystalline in nature, having cubic structure.
The optical properties indication that the optical energy gap follows
allowed direct electronic transition calculated using Tauc equation
and it increases for doped Co3O4. The photo sensing properties of
thin films are studied as a function of time at different wavelengths to
find the sensitivity for these lights.
High photo sensitivity doped Co3O4 with 6% of Yttrium, is a
118.774% at wavelength 620 nm, while for pure Co3O4 films no
sensitivity at the same wavelength. So, higher sensitivity is found for
doping Co3O4 with fast rise and fall times less than 1s.
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| first_indexed | 2024-04-10T04:23:26Z |
| format | Article |
| id | doaj.art-fda52ab0f7ca464a8a85d6d1863aa5c5 |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T04:23:26Z |
| publishDate | 2019-03-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-fda52ab0f7ca464a8a85d6d1863aa5c52023-03-10T20:55:49ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482019-03-01174010.30723/ijp.v17i40.408Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applicationsSuhad A. Hamdan In this study, pure Co3O4 nano structure and doping with 4 %, and 6 % of Yttrium is successfully synthesized by hydrothermal method. The XRD examination, optical, electrical and photo sensing properties have been studied for pure and doped Co3O4 thin films. The X-ray diffraction (XRD) analysis shows that all films are polycrystalline in nature, having cubic structure. The optical properties indication that the optical energy gap follows allowed direct electronic transition calculated using Tauc equation and it increases for doped Co3O4. The photo sensing properties of thin films are studied as a function of time at different wavelengths to find the sensitivity for these lights. High photo sensitivity doped Co3O4 with 6% of Yttrium, is a 118.774% at wavelength 620 nm, while for pure Co3O4 films no sensitivity at the same wavelength. So, higher sensitivity is found for doping Co3O4 with fast rise and fall times less than 1s. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/408Cobalt oxide, yttrium, photo sensor, sensitivity, hydrothermal |
| spellingShingle | Suhad A. Hamdan Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications Iraqi Journal of Physics Cobalt oxide, yttrium, photo sensor, sensitivity, hydrothermal |
| title | Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| title_full | Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| title_fullStr | Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| title_full_unstemmed | Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| title_short | Synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| title_sort | synthesized pure cobalt oxide nanostructure and doped with yttrium by hydrothermal method for photodetector applications |
| topic | Cobalt oxide, yttrium, photo sensor, sensitivity, hydrothermal |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/408 |
| work_keys_str_mv | AT suhadahamdan synthesizedpurecobaltoxidenanostructureanddopedwithyttriumbyhydrothermalmethodforphotodetectorapplications |