Comparative Study on Solid-State Photoelectrochemical Solar Energy Conversion Based on P3ot and P3ot: Pcbm
| dc.contributor.advisor | Yohannes, Teketel (Professor) | |
| dc.contributor.author | Derib, Kassa | |
| dc.date.accessioned | 2018-06-20T07:50:37Z | |
| dc.date.accessioned | 2023-11-09T16:17:38Z | |
| dc.date.available | 2018-06-20T07:50:37Z | |
| dc.date.available | 2023-11-09T16:17:38Z | |
| dc.date.issued | 2010-06 | |
| dc.description.abstract | The photoelectrochemical properties of a solid-state photoelectrochemical cell (PEC) based on poly(3-octylthiophene), P3OT, and a blend of P3OT with phenyl-C61-butyric acid methyl ester, PCBM, an ion-conducting polymer electrolyte, amorphous poly(ethylene oxide), POMOE, complexed with iodine/triiodide redox couple has been constructed and studied. The current - voltage characteristics in the dark and under white light illumination, the dependence of the short - circuit (Isc) and the open - circuit voltage (Voc) of the two types of the devices have been compared. An open-circuit voltage of 344 mV and a shortcircuit current of 0.47 μA cm-2 were obtained for the device of P3OT as a photoactive electrode and an open-circuit voltage of 294 mV and a short-circuit current of 4.271 μA cm-2 were obtained for the device of P3OT:PCBM at light intensity of 100 mW/cm2. The transient photocurrent and photovoltage, the photocurrent action spectra of the blend P3OT:PCBM for front and back side illuminations and an open-circuit voltage and shortcircuit current dependence on light intensity have been studied. During illumination, a cathodic photocurrent was observed, indicating that the neutral poly(3-octylthiophene) behaves as a p-type semiconductor. IPCE% of 0.0682 % for front side illumination (ITO/PEDOT) and IPCE% of 0.0011 % for backside illumination (ITO/P3OT:PCBM) were obtained for the device ITO│P3OT:PCBM │POMOE:I3 -/I-│ PEDOT│ITO. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/2089 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | photoelectrochemical | en_US |
| dc.title | Comparative Study on Solid-State Photoelectrochemical Solar Energy Conversion Based on P3ot and P3ot: Pcbm | en_US |
| dc.type | Thesis | en_US |