| 학회 | 한국재료학회 |
| 학술대회 | 2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터) |
| 권호 | 20권 2호 |
| 발표분야 | A. 전자/반도체 재료(Electronic and Semiconductor Materials) |
| 제목 | Complexing agents effects on CZTS absorber layer from particle to film formation by direct chemical deposition method |
| 초록 | Cu2ZnSnS4 (CZTS) is a p-type semiconductor material and interestingly used as a promising absorber layer for thin film solar cells, because it consists of earth abundant and inexpensive elements. Thin film of CZTS has attracted much more attention in recent years because of its beneficial properties include a large absorption coefficient of 104 cm-1 and wide band gap 1.4-1.6 eV for highly efficient and low-cost solar cells. The CZTS solar cell device is inspired by Cu(InGa)Se2 (CIGS) solar cells, which have already been commercialized, but due to high cost and toxic elements like In and Ga it is necessary to the possibility of the rapid development of CZTS solar cell techniques. Among vacuum and non vacuum processes, solution based methods have been approached interestingly because of low cost and easy to synthesize CZTS thin films. In the present work , we report the how the surface morphology of CZTS film changes from particles to smooth film via dense packed micro cubes by using triethanolamine (TEA) and ammonia as complexing agents in the direct chemical deposition method. We studied the effects of TEA and ammonia on the heterogeneous adhesion of CZTS films onto glass substrates. As synthesized CZTS films were characterized by scanning electron microscopy (SEM), X-ray diffraction, and absorption spectroscopy and photoluminescence spectroscopy. The CZTS films showed well-developed kesterite crystal structure after sulfurization treatment at 500℃. |
| 저자 | Vinaya Kumar Arepalli1, Challa Kiran Kumar2, Eui-Tae Kim3 |
| 소속 | 1Department of Materials Science and Engineering, 2Chungnam National Univ., 3Daejeon |
| 키워드 | Solar Cells; CZTS; CBD |
