稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2014年
9期
879-883
,共5页
戚兴国%随志磊%邓宇航%代如成%王中平%张增明%丁泽军
慼興國%隨誌磊%鄧宇航%代如成%王中平%張增明%丁澤軍
척흥국%수지뢰%산우항%대여성%왕중평%장증명%정택군
BaBi4Ti4O15%piezoelectric ceramic%rare earths%up-conversion%pressure%temperature
Yb3+ and Er3+ co-doped BaBi4Ti4O15 (BBT) ceramic samples showed brighter up-conversion photoluminescence (UC-PL) under excitation of 980 nm. The monotonous increase of fluorescence intensity ratio (FIR) from 525 to 550 nm with temperature showed that this material could be used for temperature sensing with the maximum sensitivity to be 0.0046 K-1 and the energy dif-ference was 700 cm-1. Moreover, the sudden change of red and green emissions around 400 oC might imply a phase transition. With increasing pressure up to 4 GPa, the PL intensity decreased but was still strong enough. These results illustrated the wide applications of BBT in high temperature and high pressure conditions.
