Junction Studies between Aluminum and Polymer, Poly[2-Methoxy-5-(30,70- Dimethyloctyloxy)-1, 4-Phenylene Vinylene], Mdmo-Ppv and Mdmo-Ppv Blended With C60
| dc.contributor.advisor | Tessema, Genene (PhD) | |
| dc.contributor.author | Nigussa, Zelalem | |
| dc.date.accessioned | 2018-07-10T09:29:52Z | |
| dc.date.accessioned | 2023-11-09T11:25:25Z | |
| dc.date.available | 2018-07-10T09:29:52Z | |
| dc.date.available | 2023-11-09T11:25:25Z | |
| dc.date.issued | 2005-06 | |
| dc.description.abstract | This thesis is based on the experimental investigation of the junction between reactive low work function metal, Aluminum and Conjugated polymer, MDMO-PPV. The polymer is blended with C60 and the composition were also made with pure polymer. The techniques employed are absorption spectroscopy, current-voltage characteristics measurement and complex impedance spectroscopy. The absorption measurement shows that MDMO-PPV is a semiconductor with energy band gap of about 2.0032eV. The current density-voltage curve is found to be asymmetric and non-ohmic and shows Schottky barrier type recti¯cation. The recti¯cation ratio of fullerene blended MDMO-PPV is found to be 100 whereas that of pure MDMO-PPV is between 10 and 20, and more diode characteristics are observed in the case of fullerene blended polymer. The complex impedance spectra are single semi-circle displaced from the origin that show the existence of mobile charge depleted regions with some contact resistance. The radius of the semi-circle is found to depend on the bias of the junction | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/7608 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Junction Studies between Aluminum and Polymer | en_US |
| dc.title | Junction Studies between Aluminum and Polymer, Poly[2-Methoxy-5-(30,70- Dimethyloctyloxy)-1, 4-Phenylene Vinylene], Mdmo-Ppv and Mdmo-Ppv Blended With C60 | en_US |
| dc.type | Thesis | en_US |