| 초록 |
One-dimensional semiconductor nanostructure represents an attractive class of nanomaterials for solar cell devices because they provide a direct path for charge transport. Here we demonstrate the feasibility of lateral organic bulk heterojunction solar cells with laterally patterned back contact electrodes and active layer consisting of self-assembled poly (3-hexylthiophene) (P3HT) nanowires and PCBM blend. With incorporation of preformed P3HT nanowires, the charge carrier mobility and photocurrent generation were enhanced in longitudinal direction, which resulted in improved power-conversion efficiencies. Moreover, for a high power-source application, multiple devices connected in parallel and serial were demonstrated by designing electrode patterns. For the application to the power source of flexible optoelectronic device, lateral solar cells on flexible substrates were demonstrated. |
