Size-dependent thermochromism through enhanced electron-phonon coupling in 1 nm quantum dots

Haruna Tamaki, Hiroto Watanabe, Sachiko Kamiyama, Yuya Oaki, Hiroaki Imai

研究成果: Article査読

15 被引用数 (Scopus)

抄録

1 nm CuO quantum dots (QDs) were produced in size-controlled super-micropores of a silica matrix. The reversible color change of the QDs from pale blue to deep green was clearly observed in a wide temperature range from 298 to 673 K. This particular thermochromism is ascribed to an enhanced bandgap shift depending on temperature with a strong electron-phonon coupling in the confined space of the 1 nm QDs. A dot matrix: 1 nm CuO quantum dots have been prepared in microporous silica. They exhibit unique and reversible color change from pale blue to deep green in a wide temperature range from 298 to 673 K. This thermochromism is ascribed to an enhanced bandgap shift that depends on temperature, with a strong electron-phonon coupling in the confined space of the 1 nm CuO quantum dots.

本文言語English
ページ(範囲)10706-10709
ページ数4
ジャーナルAngewandte Chemie - International Edition
53
40
DOI
出版ステータスPublished - 2014 9 26

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)

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