Disposable piezoelectric vibration sensors with PDMS/ZnO transducers on printed graphene-cellulose electrodes

•Flexible piezoelectric vibration sensors inkjet printed on paper substrates using electrically conductive graphene-CMC ink is proposed.•Only nontoxic materials and environmentally benign fabrication processes are used to create the multi-layered structure.•Piezoelectric transducer is a PDMS/ZnO composite spin coated on graphene-CMC electrodes.•Impact of ZnO loading on sensor performance is investigated.•Impact force and small-amplitude vibration tests are used to validate sensor performance.