| 초록 |
Non-vacuum processes such as printing, electroplating and spraying have been suggested to solve the problems of the current vacuum based CIGS solar cell fabrication methods. Particularly, the printing method using a nanocrystal ink would be a most promising one considering manufacturing cost and large panel fabrication.In this study, chalcopyrite copper indium sulfide (CuInS2) and copper indium gallium selenide (Cu(InxGa1-x)Se2) nanocrystals were synthesized by an arrested precipitation in solution. These nanocrystals were then re-dispersed in organic solvent with a suitable viscosity to use as an ink. After drop casting and annealing the film was sulfurized in H2S/Ar atmosphere. The compositional and structural characteristics of nanocrystals and films were investigated by various analysis techniques including SEM, TEM, XRD, and EPMA, and will be discussed in the presentation. |
