Adapting two-phase synthesis method to develop cadmium poor quaternary ZnCd-chalcogenide quantum dots

Erkan M., Ük N., Nar I., Ünlü C.

Optical Materials, vol.138, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 138
  • Publication Date: 2023
  • Doi Number: 10.1016/j.optmat.2023.113713
  • Journal Name: Optical Materials
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Computer & Applied Sciences, INSPEC
  • Istanbul Technical University Affiliated: Yes

Abstract

The photophysical properties of quantum dots (QDs) can be tuned by controlling nanocrystal size and/or nanocrystal composition through the synthesis of different cadmium-based QD forms, such as binary core, core-shell, or alloy. Recently, ternary and quaternary alloy type cadmium-based QDs have become the focus of attention. In this study, we report on adapting the two-phases synthesis approach for the synthesis of cadmium poor ZnCdSSe heterogenous quaternary-alloyed QDs. This work includes a method that allows QDs to grow at a slow growth rate and sheds light on quantum dot heterogeneous alloy structures highlighting the variation of photophysical properties in different synthesis compositions.