[6a-A404-1~11] 13.7 Nanostructures, quantum phenomena, and nano quantum devices

△ [6a-A404-7] Optical Properties of CdTe quantum dot superlattices self-organized with electrostatic interaction

〇Taichi Watanabe¹, Yong-Shin Lee¹, DaeGwi Kim¹ (1.Osaka City Univ.)

Keywords:quantum dot, optical property, quantum resonance

In the quantum dot (QD) superlattice where semiconductor QDs are periodically arranged, new physical properties based on interaction between QDs are developed. We prepared CdTe QD superlattices by using the electrostatic interaction between positively- and negatively-charged QDs. The quantum resonance between QDs was investigated by measuring absorption and photoluminescence (PL) spectra, and PL-decay profiles in detail.