[9p-Z04-1~20] 13.8 Optical properties and light-emitting devices

[9p-Z04-4] Synthesis and optical properties of Zn(Te_1-xS_x) quantum dots

〇Satoshi Tsukuda¹, Haruko Inayoshi¹, Masao Kita², Takahisa Omata¹ (1.IMRAM, Tohoku Univ., 2.NIT, Toyama College)

Keywords:Quantum dot, Phosphor, Alloy

CdSe-based QDs had been applied as green and red phosphors for backlight downconversion in liquid crystal displays because of their excellent light emission properties. However, alternatives to CdSe-based QDs are strongly desired because the use of Cd-containing materials highly is restricted by governmental regulations in many countries owing to Cd toxicity. In this study, we synthesized Zn(Te_1-xS_x) QDs with various composition x and particle sizes. The properties of Zn(Te_1-xS_x) QDs were evaluated in terms of the optical gap and emission energy depending on both particle size and their composition, x.