High-performance Hg2+ FET-type sensors based on reduced graphene oxide–polyfuran nanohybrids†
Abstract
A new type of field-effect transistor (FET) sensor, based on reduced graphene oxide (rGO)–polyfuran (PF) nanohybrids, was strategically developed. The sensing transducer exhibited a rapid response (<1 s) and high sensitivity (10 pM) in a liquid-ion-gated FET-type Hg2+ sensor. Excellent Hg2+ discrimination in heavy metal mixtures was also monitored in real time.