The size-dependent valence and conduction band-edge energies of Cu quantum dots

Takahiro Matsui; Hiroto Watanabe; Shoichi Somekawa; Sayaka Yanagida; Yuya Oaki; Hiroaki Imai

doi:10.1039/d4cc00260a

The size-dependent valence and conduction band-edge energies of Cu quantum dots

Chem Commun (Camb). 2024 Apr 18;60(33):4419-4422. doi: 10.1039/d4cc00260a.

Authors

Takahiro Matsui¹, Hiroto Watanabe¹, Shoichi Somekawa², Sayaka Yanagida², Yuya Oaki¹, Hiroaki Imai¹

Affiliations

¹ Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan. hiroaki@applc.keio.ac.jp.
² Tokyo Metropolitan Industrial Technology Research Institute, 2-4-10 Aomi. Koto-ku, Tokyo 135-0064, Japan.

PMID: 38505980
DOI: 10.1039/d4cc00260a

Abstract

Ultra-small metal particles having band gaps are regarded as a new class of functional materials. We investigated the size dependencies of the band-edge energies on Cu quantum-dots in the size range of 0.7-2.1 nm. The extremely high conduction band-edge energies owing to the strong quantum-size effects were observed for sizes below 1 nm.