TY - JOUR
T1 - Effects of sodium dodecyl sulfate surfactant on up-conversion luminescence of Er3+/Yb3+-codoped NaLa(MoO4)2 nanocolloidal phosphor prepared by pulsed laser ablation in water
AU - Kang, Sukhyun
AU - Jung, Kyung Hwan
AU - Kim, Kang Min
AU - Kim, Won Rae
AU - Han, Hyuksu
AU - Mhin, Sungwook
AU - Son, Yong
AU - Shim, Kwang Bo
AU - Lee, Jung Il
AU - Ryu, Jeong Ho
N1 - Publisher Copyright:
© 2019, Hanyang University. All rights reserved.
PY - 2019
Y1 - 2019
N2 - Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were synthesized by pulsed laser ablations in de-ionized water and sodium dodecyl sulfate (NaC12H25SO4, SDS) aqueous solution for up-conversion (UC) luminescence bio-labeling applications. The influences of the SDS molecules on the crystallinities, crystal morphologies, crystallite sizes, and UC luminescence properties of the prepared Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were investigated in detail. Under a 980-nm excitation, the Er3+/Yb3+-codoped nanocolloidal NaLa(MoO4)2 suspension exhibited a weak red emission near 670 nm and strong green UC emissions at 530 and 550 nm, corresponding to the intra 4f transitions of Er3+ (4F9/2,2H11/2,4S3/2) →Er3+ (4I15/2). When the SDS solution was used, a smaller average crystallite size, narrower size distribution, and enhanced UC luminescence were observed. These characteristics were attributed to the amphoteric SDS molecules attached to the positively charged Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals, effectively occupying the oxygen defect on their surfaces. The Er3+/Yb3+-codoped nanocrystalline NaLa(MoO4)2 suspension prepared in the SDS solution exhibited a remarkably strong green emission visible to the naked eyes.
AB - Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were synthesized by pulsed laser ablations in de-ionized water and sodium dodecyl sulfate (NaC12H25SO4, SDS) aqueous solution for up-conversion (UC) luminescence bio-labeling applications. The influences of the SDS molecules on the crystallinities, crystal morphologies, crystallite sizes, and UC luminescence properties of the prepared Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals were investigated in detail. Under a 980-nm excitation, the Er3+/Yb3+-codoped nanocolloidal NaLa(MoO4)2 suspension exhibited a weak red emission near 670 nm and strong green UC emissions at 530 and 550 nm, corresponding to the intra 4f transitions of Er3+ (4F9/2,2H11/2,4S3/2) →Er3+ (4I15/2). When the SDS solution was used, a smaller average crystallite size, narrower size distribution, and enhanced UC luminescence were observed. These characteristics were attributed to the amphoteric SDS molecules attached to the positively charged Er3+/Yb3+-codoped NaLa(MoO4)2 colloidal nanocrystals, effectively occupying the oxygen defect on their surfaces. The Er3+/Yb3+-codoped nanocrystalline NaLa(MoO4)2 suspension prepared in the SDS solution exhibited a remarkably strong green emission visible to the naked eyes.
KW - Bio-labeling
KW - Er/Yb-codoped NaLa(MoO)
KW - Nanocolloidal suspension
KW - Pulsed laser ablation in liquid
KW - Up-conversion
UR - http://www.scopus.com/inward/record.url?scp=85067127624&partnerID=8YFLogxK
U2 - 10.36410/jcpr.2019.20.2.158
DO - 10.36410/jcpr.2019.20.2.158
M3 - Article
AN - SCOPUS:85067127624
SN - 1229-9162
VL - 20
SP - 158
EP - 163
JO - Journal of Ceramic Processing Research
JF - Journal of Ceramic Processing Research
IS - 2
ER -