[PHp2] QD Phosphors

[PHp2-3L] Ligand Exchange of Core/Shell CuInS₂/ZnS Quantum Dots for Preparation of Their Homogeneous Ink

*Momo Shiraishi¹, Yoshiki Iso¹, Tetsuhiko Isobe¹, Takehiro Seshimo², Yueh-Chun Liao², Kunihiro Noda², Dai Shiota² (1. Keio University (Japan), 2. Tokyo Ohka Kogyo Company, Ltd. (Japan))

Keywords:Quantum dots, CIS/ZnS, Photoluminescense, Ligand exchange, Ink

1-Dodecanethiol on CuInS₂/ZnS quantum dots (QDs) was exchanged with cyclohexanethiol. The obtained QDs were transparently dispersed in alicyclic diepoxy compound to yield the QD ink for ink-jet printing. This homogeneous dispersion is attributed to similarity in molecular structure between the ligand and the ink component.