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

• Ohara, Yuhki

• Nakabayashi, Takakazu

• Iwasaki, Kentaro

• Torimoto, Tsukasa

• Ohtani, Bunsho

• Ohta, Nobuhiro

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

Journal

• Comptes rendus chimie

  Comptes rendus chimie 9 (5-6), 742-749, 2006-05

  ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER

Keywords

• Cds nanoparticle
• absorption et emission
• photoswitching behavior
• electric field effects

Details

• CRID: 1050001338976600320
• NII Article ID: 120000961436
• HANDLE: 2115/11332
• ISSN: 16310748
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN