Ammonia sensor using N-doped graphene quantum dotspolyaniline composite

Ammonia sensor using N-doped graphene quantum dots/polyaniline composite

The present study investigated a resistive ammonia (NH3) gas sensorfabricated using polyaniline (PANI) and N- doped graphene quantumdots (N-GQDs) dopant on a transparent and flexible substrate withinterdigitated electrodes. The sensing response of the PANI to NH3increased from 9.12 to 86.91 at 1500 ppm with the addition of 50 wt%N-GQDs. This shows that sensing response of N-GQDs/PANI sensorfor NH3 detection is enhanced by the N-GQDs added into PANI. It canbe attributed to the pi;- pi; ...

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