| 학회 | 한국재료학회 |
| 학술대회 | 2007년 가을 (11/02 ~ 11/02, 성균관대학교) |
| 권호 | 13권 2호 |
| 발표분야 | 에너지환경재료 |
| 제목 | Fabrication of CdS nanorod/ CdTe solar cell using nano-imprint lithography and electrodeposition |
| 초록 | Cadmium Telluride(CdTe) that has suitable band gap energy for solar cell (Eg=1.45eV) would have a high potential for practical use of the solar cell as a substitute for Silicon(Si). Recently, formation of Cadmium Surfate(CdS) nanorod as a window layer is reported for high efficiency solar cell. For the reason, effective optical length is lengthen by scattering and depletion region, in which electron and hole pairs generated by photon are separated, is increased by lengthen interface with CdTe. In this study, we obtained uniform CdS nanorods by nano-imprint lithography and guaranteed the simple process of nanorod growth. Line pattened CdS nanorod's width is 70nm and hight is 100nm while distance between rod and rod is 70nm. Additionally, we used electrodeposition method for both CdS and CdTe because it is workable under ambient temperature and pressure and able to control deposition easily. The thickness of CdTe thin film is 800nm. Both thickness and morphology of fabricated CdS nanorod and CdTe thin film are observed by Scanning Electron Microscope(SEM) and crystal structure is analyzed by X-ray diffraction(XRD). Quantum efficiency(QE) and Current-Voltage(I-V) analysis are practiced for CdS/CdTe solar cell's photovoltaic characteristic. |
| 저자 | 박하영, 노현우, 한강수, 이헌, 김동환 |
| 소속 | 고려대 |
| 키워드 | CdS; nanorod; CdTe; solar cell |
