Optical Waveguide BTX Gas Sensor Based on Yttrium-Doped Lithium Iron Phosphate Thin Film

<table>Selectivity of LiFePO<sub>4</sub> and LiFe<sub>0.99</sub>Y<sub>0.01</sub>PO<sub>4</sub> film OWG (1000 ppm).</table>

International Scholarly Research Notices

Figure 9: Optical Waveguide BTX Gas Sensor Based on Yttrium-Doped Lithium Iron Phosphate Thin Film 