Reversible luminescence switching of NaYF4:Yb,Er nanoparticles with controlled assembly of gold nanoparticles.
Upon the tunable surface plasmon band of the pH-induced reversible assembly of gold nanoparticles mediated by cysteine, the manipulation of green and red upconversion emission, and the switching of the red emission of the NaYF(4):Yb,Er nanoparticles have been achieved in a facile and reproducible way.
Zhang
Shu-Zhuo
SZ
Peking University, Beijing, China.
Sun
Ling-Dong
LD
Tian
He
H
Liu
Ying
Y
Wang
Jian-Fang
JF
Yan
Chun-Hua
CH