Y₂(Ge,Si)O₅:Pr phosphors: multimodal temperature and pressure sensors shaped by bandgap management

Abstract

Deliberate managing of luminescent parameters for precise measurements of the two physical quantities executed by the bandgap engineering varying Ge:Si proportion in the Y2(Gex,Si1-x)O5:Pr phosphor.

Giant Pressure‐Induced Spectral Shift in Cyan‐Emitting Eu2+‐Activated Sr8Si4O12Cl8 Microspheres for Ultrasensitive Visual Manometry

“…The data can be found in the references (indicated by doi number). [ 14,15,44–53 ] In all cases, the pressure sensitivity of the developed sensor in this work corresponds to the highest achievable value for all reported pressure sensor material.…”

Highly‐Sensitive, Tri‐Modal Luminescent Manometer Utilizing Band‐Shift, Ratiometric and Lifetime‐Based Sensing Parameters

“…Moreover, the broadband nature of the emission introduces a potential source of imprecision when Figure 8. Pressure-dependent maximum of the emission band associated with the 4 T 2g → 4 A 2g transition of Cr 3+ ions in doped Li 3 Sc 2 (PO 4 ) 3 (1% Cr 3+ ), with the pressure range defined as the operating range, where a linear dependence of the band centroid as a function of pressure was obtained a); A summary of the most sensitive luminescence manometers in terms of pressure-induced spectral shift rate of the emission band (>1 nm GPa −1 ) b) [6,8,14,37,[43][44][45][46][47][48][49][50][51][52][53][54][55][56] and a d𝜆/dp versus d𝜆/dT plot for representative luminescence manometers based on the spectral shift-c).…”

Temperature invariant lifetime based luminescent manometer on Mn4+ ions

“…This is a very high value comparable to the most sensitive luminescence manometers based on the spectral analysis of materials doped with Ln 3+ ions. 41,42 However, it should be borne in mind that luminescence kinetics is hardly affected by the dispersive dependence of light absorption and scattering by the medium, and therefore allows for a more reliable measurement as proven for luminescence thermometry. 43 In the case of luminescence manometers, it is essential to provide a temperature-invariant pressure readout.…”