Electrical Properties of Junctions between Aluminium and Pol Y(3-0ctylphenylthiophene) (POPT)
| dc.contributor.advisor | Workalemahu, Bantikassegn (PhD) | |
| dc.contributor.author | Tessema, Wudyalew | |
| dc.date.accessioned | 2018-07-09T11:06:10Z | |
| dc.date.accessioned | 2023-11-09T11:25:18Z | |
| dc.date.available | 2018-07-09T11:06:10Z | |
| dc.date.available | 2023-11-09T11:25:18Z | |
| dc.date.issued | 1999-07 | |
| dc.description.abstract | This thesis is based on the study of the electronic properties of poly(3-octylphenylthiophene) (POPT) in the form of AlJPOPTIITO sandwich stlucture prepared in our laboratory using a vacuum evaporation technique. The electronic properties of the sandwich structure were analyzed using cmrent- voltage characteristics and complex impedance spectroscopy. The optical absorption spectrum of spin coated thin films of POPT was measured using Perkin Elmer 1..19 UVNislNIR spectrophotometer which showed a forbidden energy gap of about 1.77eV and hence it belongs to the class of semiconducting organic materials. The I-V characteristics of the sandwich structure show a rectifying behavior. The complex impedance analysis exhibits a bias voltage dependent part of a single semicircle in the Cole-Cole plot. This is modeled by one parallel RC electrical circuit, usually obtained fiĀ·om metal-semiconductor (MS) devices | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/7334 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Electrical Properties | en_US |
| dc.title | Electrical Properties of Junctions between Aluminium and Pol Y(3-0ctylphenylthiophene) (POPT) | en_US |
| dc.type | Thesis | en_US |