학회 | 한국화학공학회 |
학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
권호 | 18권 2호, p.2349 |
발표분야 | 재료 |
제목 | Synthesis of Iron Pyrite Nanoparticles by hot-injection method: Structural and Optical Properties |
초록 | Iron pyrite (FeS2) nanocrystals (NCs) are cheap, non-toxic, large optical absorption coefficient and narrow bandgap (Eg=0.95 eV) is the advantaged candidate for the active layer in the Bulk Hetero-junction solar cells. In this work, the colloidal iron pyrite NCs were synthesized by simple hot-injection method by using FeCl2.4H2O and sulfur salt as precursor materials, octadecyalmine and diethyl ether as solvent materials. The X-ray powder diffraction (XRD) shows the single-phase of iron pyrite and high resolution transmission electron microscope (HRTEM) measurement indicates the new shape of iron pyrite NCs, elongated-shape that are believed to show superior performance compared to spherical NCs. The optical properties of iron pyrite NCs were measured by UV-Vis (UV) and photoluminescence (PL) spectroscopy. Acknowlegement The authors were supported from the second phase of BK21 program. |
저자 | 윈응옥프엉타오, Tam Nguyen Truong Nguyen, 박진호 |
소속 | 영남대 |
키워드 | Elongated-shape; Hot-injection; Iron pyrite; Nanocrystals |
원문파일 | 초록 보기 |