Fig. 1: Materials and device design. | Nature Communications

Fig. 1: Materials and device design.

From: Wide-range and high-accuracy wireless sensor with self-humidity compensation for real-time ammonia monitoring

Fig. 1

a Schematic illustration showing the overall design of the Pt-PPy+ and PPy0-based LC sensor for diagnosis detection, food freshness qualification, and hazardous leakage alarm. b The design route of Pt-PPy+ and PPy0 sensing material for wireless NH3 sensing. c The energy gaps of PPy with different oxidation degrees: the band gaps of PPy significantly broaden as the decrease of the oxidation state. d The comparison of the adsorption energy (ΔEads) and charge transfer (Q) of different sensing materials toward NH3, including PPy-based sensing materials with different oxidation degrees, transition metal-doped PPy+ and PPy0, and previously-reported sensing materials. e The charge densities of different PPy-based sensing materials to NH3 (PPy-based sensing materials with different oxidation degrees and transition metal-doped PPy+ and PPy0). E is the electric field between interdigital electrodes. Source data are provided as a Source Data file.

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