Growth of Ultrathick CuInS2 Shells for Supersized Core/Shell Nanoparticles

Yue Qin; Xuerong Song; Hanzhuang Zhang; Hongbo Zhu; Wenyu Ji; Jiajia Ning

doi:10.1021/acs.inorgchem.4c04153

Growth of Ultrathick CuInS₂ Shells for Supersized Core/Shell Nanoparticles

Inorg Chem. 2024 Nov 24. doi: 10.1021/acs.inorgchem.4c04153. Online ahead of print.

Authors

Yue Qin¹, Xuerong Song¹, Hanzhuang Zhang¹, Hongbo Zhu², Wenyu Ji¹, Jiajia Ning¹

Affiliations

¹ Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Qianjin Street No. 2699, Changchun 130012, China.
² State Key Laboratory of Luminescence Science and Technology, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.

PMID: 39582178
DOI: 10.1021/acs.inorgchem.4c04153

Abstract

The growth of ultrathick shells on quantum dots (QDs) has been demonstrated to provide new aspects of nanoparticles (NPs). Spherical dot-shaped CuInSe₂ QDs were produced with the advantage of shell growth due to their homogeneous surface. The superthickness (∼45 nm) of CuInS₂ was deposited on the CuInSe₂ dots to form supersized CuInSe₂/CuInS₂ core/shell nanostructures with a tetrakaidecahedron shape to ∼100 nm. This quasi-epitaxial growth mechanism was extended to form supersized ZnSe/CuInS₂ and CuInS₂/CuInS₂ core/shell nanostructures, thereby providing an efficient method for supersized nanoparticles based on shell growth. The formation of supersized nanoparticles (20-100 nm) may induce new chemistry and physics for nanomaterials, supplying new aspects in fundamental research and the commercial industry.