| Authors: | Nguyen, Nang Dinh Tran, Thi Thao Do, Ngoc Chung Vo, Van Truong |
| Keywords: | Organic Solar cell (OSC);nanorod-like TiO2;P3HT:PCBM/nc-TiO2 heterojunctions;polymer quenching |
| Issue Date: | 2014 |
| Publisher: | H. : ĐHQGHN |
| Series/Report no.: | Vol. 30;No. 1 (2014) |
| Abstract: | Nanorod-like TiO2 was grown on Ti wafers by annealing at 700oC for 1.5h. Hybrid Organic Solar Cells (HOSC) were then prepared by using a nano hybrid material of P3HT:PCBM/nc-TiO2. The HOSC have the laminar structure of Al/P3HT:PCBM/TiO2/Ti, where P3HT:PCBM weremade by spincoating. Under illumination of the standard light wavelength (l = 470 nm), the polymer luminescence quenching was observed at the heterojunctions, resulting in the charge separation. With an illumination power of 56 mW/cm2, a best hybrid solar cell exhibited an open circuit voltage of 0.60 V, short cut current density of 4.60 mA/cm2, fill factor of 0.54 and photoelectrical conversion efficiency of 2.6 %. This suggests a useful application for fabricating “reverse” OSCs, where the illumination light goes-in through the windows of Al-electrode cathode, instead of the indium tin oxide (ITO). For these devices, the Ohmic contact of wires to metallic Ti-substrates can be made much better than to ITO electrode. |
| Description: | p. 8-15 |
| URI: | http://repository.vnu.edu.vn/handle/VNU_123/56083 |
| ISSN: | 2588-1124 |
| Appears in Collections: | Mathematics and Physics |
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