Fig. 5
From: Hybrid nanodiamond quantum sensors enabled by volume phase transitions of hydrogels
Temperature sensitivity of the hybrid sensor. a, b ODMR spectra of an ND@pNIPAM–Ni hybrid sensor at different temperatures during the heating and cooling processes, respectively. c Temperature-dependent peak shift fs, and d the estimated sensitivity at different temperatures in the heating (red) and cooling (navy) cycles, in comparison with numerical simulation (gray). Olive dash line in d indicates the sensitivity of the bare ND temperature sensor in the absence of MNPs. The horizontal error bars in c, d are the fitting errors of the temperature calibrations. The vertical error bars in c are the fitting errors, and in d are the shot-noise errors from the ODMR spectra
