Fabrication of a novel fluorescent material by conjugation of Q-dots with particles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We prepared ZnS:Mn2+ nanocrystal-particle complexes and YAG:Ce3+ nanocrystal-particle complexes. In addition to the improved dispersion-stability, conjugation of Q-dots with particles enabled us to control the fluorescent properties. The fluorescent intensity increased with increasing the number of incorporated ZnS:Mn2+ nanocrystals and the intensity was also enhanced by aging after conjugation. Since YAG:Ce3+ nanocrystals have around 30nm in diameter, it was not so easy to assembly them into NAG particles. We could obtain YAG:Ce3+ nanocrystal-particle complexes by using negatively-charged NAGCOOH particles. This is because the electrostatic attraction works between the NAGCOOH particles and positively-charged YAG:Ce3+ nanocrystals. Although YAG:Ce 3+ nanocrystals were apt to aggregate, the obtained complexes were well dispersed even in an aqueous solution containing 100mM NaCl.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages1658
Number of pages1
Volume55
Edition1
Publication statusPublished - 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period06/5/2406/5/26

Fingerprint

Nanocrystals
Fabrication
Charged particles
Electrostatics
Aging of materials

Keywords

  • Core-shell particle
  • Fluorescent
  • Nanocrystal
  • Q-dot

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Fabrication of a novel fluorescent material by conjugation of Q-dots with particles. / Ueno, Takavuki; Isobe, Tetsuhiko; Fujimoto, Keiji.

Polymer Preprints, Japan. Vol. 55 1. ed. 2006. p. 1658.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ueno, T, Isobe, T & Fujimoto, K 2006, Fabrication of a novel fluorescent material by conjugation of Q-dots with particles. in Polymer Preprints, Japan. 1 edn, vol. 55, pp. 1658, 55th SPSJ Annual Meeting, Nagoya, Japan, 06/5/24.
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