TY  - JOUR 
T1  - Effects of Heat Treatment and Yb <sup>3+</sup> Concentration on the Downconversion Emission of Er <sup>3+</sup> /Yb <sup>3+</sup> Co-Doped Transparent Silicate Glass-Ceramics
JO  - Materials Research
A1  - Dan, Ho Kim
A1  - Tap, Tran Duy
A1  - Nguyen-Truong, Hieu
A1  - Ty, Nguyen Minh
A1  - Zhou, Dacheng
A1  - Qiu, Jianbei
SN  - 1516-1439
UL  - 10.1590/1980-5373-MR-2019-0113
VL  - 22 
Y1  - 2019
PB  - Brasil 
ER  -