TY - GEN
T1 - Synthesis of Cu-In-S fluorescent nanocrystals
AU - Watanabe, Kosuke
AU - Uehara, Masato
AU - Nakamura, Hiroyuki
AU - Maeda, Hideaki
PY - 2008
Y1 - 2008
N2 - CuInS2 (CIS) fluorescent nanocrystals (NCs) were obtained by heating an organic metal complex. The photoluminescence (PL) originated from the donor-acceptor, and the quantum yield (QY) was achieved at 6%. Furthermore, we doped some metal ions (Zn2+, Cd2+ or Ag+) by the post heat-treatment in the organic coordinating solvent in order to tune the band gap of NCs. By this post treatment, the alteration of NCs structure was suggested, such as changing into an alloying and composite structure. In Zn-doping, the PL wavelength was widely tuned from 535 to 650 nm by alloying between CIS and ZnS. Moreover, PL intensity was increased with these structure alterations. In particular, the materials doped with Zn or Cd achieved respective QY of 25% and 40%.
AB - CuInS2 (CIS) fluorescent nanocrystals (NCs) were obtained by heating an organic metal complex. The photoluminescence (PL) originated from the donor-acceptor, and the quantum yield (QY) was achieved at 6%. Furthermore, we doped some metal ions (Zn2+, Cd2+ or Ag+) by the post heat-treatment in the organic coordinating solvent in order to tune the band gap of NCs. By this post treatment, the alteration of NCs structure was suggested, such as changing into an alloying and composite structure. In Zn-doping, the PL wavelength was widely tuned from 535 to 650 nm by alloying between CIS and ZnS. Moreover, PL intensity was increased with these structure alterations. In particular, the materials doped with Zn or Cd achieved respective QY of 25% and 40%.
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M3 - Conference contribution
AN - SCOPUS:70350277688
SN - 9781605608389
T3 - Materials Research Society Symposium Proceedings
SP - 14
EP - 19
BT - Quantum-Dot and Nanoparticle Bioconjugates-Tools for Sensing and Biomedical Imaging
T2 - 2007 MRS Fall Meeting
Y2 - 26 November 2007 through 30 November 2007
ER -