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Table 4 Final evaluation

From: Multiple ratiometric nanothermometry using semiconductor BiFeO3 nanowires and quantitative validation of thermal sensitivity

Let us denote A (1) = a1, A (2) = a2, A (3) = a3

Overall thermal sensitivity of LIR ratio (E2/E1, E2/E3, and E2/E4) over the temperature range of 300–440 K

 = \(\sum_{k=1}^{3}\left[\sum_{i=1}^{{i}_{k}}{A}_{i}^{(k)} {A}_{ij}^{(k)}\right]\); for j = 1, 2, 3; i1 = 3 (in our case)

 = 0.1009 (E2/E1)

 

0.3960 (E2/E3)

 

0.5029 (E2/E4)