Details

Autor(en) / Beteiligte

• QI, Xingguo
• SUI, Zhilei
• DENG, Yuhang
• DAI, Rucheng
• WANG, Zhongping
• ZHANG, Zengming
• DING, Zejun

Titel

Pressure and temperature dependent up-conversion properties of Yb super(3+)-Er super(3+) co-doped BaBi sub(4)Ti sub(4)O sub(1 5) ferroelectric ceramics

Ist Teil von

• Journal of rare earths, 2014-09, Vol.32 (9), p.879-883

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Yb super(3+) and Er super(3+) co-doped BaBi sub(4)Ti sub(4)O sub(1 5) (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 super(-1) and the energy difference was 700 cm super(-1). Moreover, the sudden change of red and green emissions around 400 [degrees]C 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.