Development of a photosensor based on photo dielectric effect of cadmium sulphide
| dc.contributor.author | Kumari, TID | |
| dc.contributor.author | Jayasumana, MASD | |
| dc.contributor.author | Attygalle, D | |
| dc.date.accessioned | 2019-10-21T09:31:37Z | |
| dc.date.available | 2019-10-21T09:31:37Z | |
| dc.description.abstract | A photosensor is an electronic component that detects the presence of visible light, infrared radiation, and/ or ultraviolet radiation. A photosensor which changes its electrical capacitance in the presence of visible light was developed based on the photo-dielectric effect of Cadmium Sulphide (CdS). A thin layer of CdS was deposited on Fluorine-doped Tin Oxide glass using chemical bath deposition technique. The optimum photo-dielectric behaviour was observed for chemical bath temperature between 40-45 ºC. After annealing the deposited film at 180-200 ºC, they have shown a band gap in the range of 2.30– 2.40 eV. Photo-capacitance and photoconductivity in dark and visible light illumination showed a significant change, indicating these films are suitable for photo sensing applications. | en_US |
| dc.identifier.conference | Moratuwa Engineering Research Conference - MERCon 2019 | en_US |
| dc.identifier.department | Department of Materials Science and Engineering | en_US |
| dc.identifier.faculty | Architecture | en_US |
| dc.identifier.place | Moraruwa, Sri Lanka | en_US |
| dc.identifier.uri | http://dl.lib.mrt.ac.lk/handle/123/15144 | |
| dc.identifier.year | 2019 | en_US |
| dc.language.iso | en | en_US |
| dc.subject | Chemical Bath Deposition | en_US |
| dc.subject | Cadmium Sulphide | en_US |
| dc.subject | Bandgap | en_US |
| dc.subject | Dielectric | en_US |
| dc.title | Development of a photosensor based on photo dielectric effect of cadmium sulphide | en_US |
| dc.type | Conference-Abstract | en_US |