| 초록 |
Inspired by the morphology exhibited by natural moth eye, PEDOT moth eye patterned (MEP) films with tin sulfide (SnS) selectively coated on microdomes was fabricated. Patterned materials mimicking moth eye are successful in self-cleaning materials, LEDs and solar cells. SnS is emerging as a new solar absorbing material because of its suitable band gap of ~1.1 to 2.1 eV. Also, SnS is non-toxic and earth abundant, besides it can be either p-type and n-type depend on preparation conditions. SnS together with PEDOT, a highly conducting, transparent, hole transport material can be adopted to fabricate flexible, roll-to-roll polymer solar cells. However, the efficiency of most of the present day SnS based solar cells is only ~ 4%, one of the ways to improve the efficiency is to increase the absorption of SnS active layer, hence the combination of PEDOT/SnS with MEP morphology can enhance the performance of SnS based solar cells by combining the advantageous of materials with morphology. |
