| 초록 |
Copper antimony sulfide (CAS) is a I-V-VI chalcogenide based on low-toxic and earth-abundant elements that can be synthesized in four main phases: CuSbS2 (chalcostibite), Cu12Sb4S13 (tetrahedrite), Cu3SbS3 (skinnerite), and Cu3SbS4 (fematinite). All four phases have been confirmed to be p-type semiconductors with an optical band gap ranging from 0.5 to 2 eV and a high absorption coefficient between 104 and 105 cm-1. Also, Cu2SnS3 (CTS) are considered recently as efficient solar absorbers in thin film solar cells because it composed of earth abundant and non-toxic elements. It also exhibit high absorption coefficient and desirable optical/electrical properties. Despite of its attracting optical and electrical properties, CAS and CTS NCs have been rarely studied for solar cell applications. In this presentation, I will introduce a recent achievement about synthesis method and incorporated into solar cells. We expect CAS and CTS NCs to be successfully incorporated into solar cells. |
