Self-assembled structure of dendronized CdS nanoparticles
Hiroshi Nakajima, Daichi Matsuki, Yumi Fukunaga, Takaaki Toriyama,, Koji Shigematsu, Masaki Matsubara, Kiyoshi Kanie, Atsushi Muramatsu, and, Yasukazu Murakami
TL;DR
This study investigates how annealing affects the self-assembled structure of dendronized CdS nanoparticles, revealing ordered arrangements and specific symmetry using advanced electron microscopy techniques.
Contribution
It provides new insights into the structural organization and symmetry of dendronized CdS nanoparticles after annealing, identified through STEM and autocorrelation analysis.
Findings
Ordered structures observed via STEM
Structural order belongs to P213 space group
Order maintained over tens of nanometers
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 (STEM); 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.
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