Self-assembled structure of dendronized CdS nanoparticles

Hiroshi Nakajima; Daichi Matsuki; Yumi Fukunaga; Takaaki Toriyama; Koji Shigematsu; Masaki Matsubara; Kiyoshi Kanie; Atsushi Muramatsu; Yasukazu Murakami

doi:10.1093/jmicro/dfz014

Self-assembled structure of dendronized CdS nanoparticles

Microscopy (Oxf). 2019 Aug 6;68(4):342-347. doi: 10.1093/jmicro/dfz014.

Authors

Hiroshi Nakajima¹, Daichi Matsuki¹, Yumi Fukunaga², Takaaki Toriyama², Koji Shigematsu², Masaki Matsubara³, Kiyoshi Kanie⁴, Atsushi Muramatsu⁴, Yasukazu Murakami^{1

2}

Affiliations

¹ Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Fukuoka 819-0395, Japan.
² The Ultramicroscopy Research Center, Kyushu University, Fukuoka 819-0395, Japan.
³ Department of Materials and Environmental Engineering, National Institute of Technology, Sendai College, Natori 981-1239, Japan.
⁴ Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Sendai 980-8577, Japan.

PMID: 30860260
DOI: 10.1093/jmicro/dfz014

Abstract

Self-assembled dendronized CdS nanoparticles have been attracting considerable attention because of their photoluminescence properties depending on annealing treatments. In this study, their annealing-induced self-assembled structure was investigated via scanning transmission electron microscopy; thin foil specimens of self-assembled dendronized CdS nanoparticles were prepared by ultramicrotomy and the STEM images revealed their ordered structure and the effect of the annealing treatment. In addition, a structural order belonging to the P213 space group was identified via an autocorrelation analysis. The results indicated that this structural order could be achieved only over a few tens of nanometers.

Keywords: autocorrelation; nanoparticles; scanning transmission electron microscopy; self-assembly; ultramicrotomy.