[7p-PA7-1~25] 9.2 Nanowires and Nanoparticles

[7p-PA7-16] Hydrothermal synthesis of highly luminescent ZnSe quantum dots

〇Yongshin Lee¹, Kaoru Nakano¹, Hang-Beom Bu¹, DaeGwi Kim¹ (1.Osaka City Univ.)

Keywords:ZnSe quantum dots, core/shell quantum dots, hydrothermal synthesis

Highly luminescent ZnSe-based quantum dots (QDs) were synthesized by a hydrothermal method. The characteristics of the ZnSe precursor solution strongly influenced the photoluminescence (PL) quantum yields (QYs) of the QDs. The PL QY of ZnSe-core QDs synthesized under the optimum conditions reached 60%. Furthermore, the PL QY further increased to higher than 90% when a ZnS shell was applied to prepare ZnSe/ZnS-core/shell QDs.