| Title |
A Study on the Characteristics of TiO_2 thin Film in Dye-sensitized Solar Cells using Electrospray Method |
| Authors |
김희제(Kim, Hee-Je) ; 이정기(Lee, Jeong-Gee) ; 홍지태(Hong, Ji-Tae) ; 김호성(Kim, Ho-Sung) ; 이동길(Lee, Dong-Gil) ; 허국성(Hur, Kook-Sung) ; 안태풍(An, Tae-Pung) ; 장진주(Jang, Jin-Ju) |
| Keywords |
Electrospray ; Dye sensitized solar cells(DSCs) ; TiO_2 thin film ; DC-DC converter |
| Abstract |
Dye sensitized solar cells(DSCs) have been very economical and easy method to convert solar energy to electricity. DSC can reach low costs in future outdoor power applications. However, to commercialize the DSC, there are still many shortages to overcome such a low efficiency in a large size DSC. In this study, DSCs were fabricated by an electrospray coating method for the TiO_2 thin film. They were compared with DSCs prepared by conventional coating methods. We conducted an experiment to obtain the optimized parameters of voltage, flow rate, incident angle and distance in the electrospray method. After we fabricated TiO_2 film using that way, we investigated the characteristics of DSC through I-V Curve, SEM and EIS. This novel method shows stable performance with an energy conversion efficiency of 3.44 % under 1 sun illumination (AM 1, P_{in} of 100 mW/cm^2). |