| 학회 | 한국재료학회 |
| 학술대회 | 2012년 봄 (05/17 ~ 05/18, 무주덕유산리조트) |
| 권호 | 18권 1호 |
| 발표분야 | C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 | A facile and low cost synthesis of Cu2ZnSnS4 nanocrystals formed by hydrothermal method |
| 초록 | ABSTRACT Cu2ZnSnS4 (CZTS) nanocrystals (NCs), a promising material for In- and Ga-free absorber in solar cells, were synthesized by hydrothermal method without toxic chemicals. The precursor solutions were prepared at room temperature consisting of Cu, Zn, Sn and S salts. The autoclave was then filled with distilled water up to 80 % of the total volume. The autoclave was sealed and maintained at 200 oC for 24 hours in order to synthesis of CZTS from precursor solution. Effect of complexing agents such as hydrazine hydrate, triethanolamine, Na2EDTA and tri-sodium citrate on the structural, chemical binding energy, compositional and optical properties of CZTS NCs were investigated using X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy and UV-visible spectroscopy, respectively. The XRD, TEM, XPS results for CZTS NCs indicated that the characteristics were strongly related to the complexing agent and key plays for synthesis of CZTS NCs. Further detailed analysis and discussion of the sulfurized CZTS NCs will be discussed. |
| 저자 | Woo Ri Bae1, Seung Wook Shin2, G.L. Agawane3, Jong Ha Moon4, Jeong Yong Lee5, Yeon Chan Park6, Jin Hyeok Kim7 |
| 소속 | 1Photonics Technology Research Institute, 2Department of Materials Science and Engineering, 3Chonnam National Univ., 4300 Yongbong-Dong, 5Buk-Gu, 6Gwangju 500-757, 7South Korea |
| 키워드 | Cu2ZnSnS4 (CZTS); Nanocrystals; low cost synthesis; hydrothermal method; absorber materials |
