Photo-switching behavior of CdS nanoparticles doped in a polymer film

Yuhki Ohara, Takakazu Nakabayashi, Kentaro Iwasaki, Tsukasa Torimoto, Bunsho Ohtani, Nobuhiro Ohta

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Light-emission intensity of CdS nanoparticles doped in a PMMA film is enhanced by a UV irradiation in air, but the emission intensity is strongly de-enhanced at a low pressure of 10-5 torr. Atmospheric gas as well as UV irradiation is essential for the enhancement, and these enhancement and de-enhancement processes are almost completely reversible. The emission of CdS nanoparticles doped in a PMMA film is also quenched by applying an external electric field, suggesting that the non-radiative decay rate from the emissive exciton state is accelerated by an external electric field. To cite this article: Y. Ohara et al., C. R. Chimie 9 (2006).

Original languageEnglish
Pages (from-to)742-749
Number of pages8
JournalComptes Rendus Chimie
Volume9
Issue number5-6
DOIs
Publication statusPublished - 2006 May

Keywords

  • Absorption and emission
  • CdS nanoparticle
  • Electric field effects
  • Photoswitching behavior

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Photo-switching behavior of CdS nanoparticles doped in a polymer film'. Together they form a unique fingerprint.

Cite this