[15p-K302-1~11] 13.9 Compound solar cells

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[15p-K302-5] Controlled arrangement of colloidal PbS quantum dots with butylamine ligands for realization of intermediate band solar cells

〇(M1)Nozomu Yoshikuni¹, Seiya Ikeda¹, Kohki Mukai¹ (1.Graduate School of Engineering Science, Yokohama National Univ.)

Keywords:

quantum dot,solar cell

To realize quantum dot (QD) superlattice solar cells, short-chain ligands are required to form energy bands down to lower energy levels within the superlattice. Until now, only superlattice formations of QDs with relatively long-chain ligands, such as oleic acid, have been reported. Aiming to form PbS QD superlattices using short-chain ligands, we investigated the synthesis conditions for PbS QDs to achieve uniform alignment with equal spacing, as well as the conditions for ligand exchange to butylamine, a short-chain ligand.