Figure 1
From: YVO4:Nd3+ nanophosphors as NIR-to-NIR thermal sensors in wide temperature range
(a) Emission spectra of YVO4:Nd3+ 2.4 at.% NPs obtained at different temperatures; (b) evolution of luminescence intensity ratio between peak 1063.9 nm and valley 1065.3 nm (T = 123–398 K).
