Ultra-­‐fast and ultra-­‐sensi7ve pressure sensors Monash researchers have developed an ultra-­‐fast and ultra-­‐sensi7ve flexible pressure sensors based on proprietary ultralight graphene sponge. Wearable sensor Technology The graphene sponge-­‐based sensor is able to provide fast, synchronous and reproducible response to dynamic forces of broad frequency bandwidths and high sensi7vity that are intrinsically difficult to obtain f r o m t h e e x i s 7 n g p o l y m e r e l a s t o m e r -­‐ b a s e d fl e x i b l e electronics. The excellent dynamic response of graphene sponge is highly a[rac7ve for a broad range electronic devices. Addi7onally, the graphene sponge-­‐based sensors can be mass produced at a low cost. Advantages § Responsive to forces of broad bandwidth frequencies (0.01 Hz – 20 kHz) § Negligible delay between input pressure and output signal § Excellent adaptability to human so> skin § Can be operated at low voltage (~0.01 V) and small energy consump7on (~0.01 mW) § Can be used in harsh environments, such as extremely high and low temperatures and corrosive environments. H e a rtbe a t a fte r e x e rc is e N orm a l he a rtbe a t 3 1.648 1.646 1.644 2 8 1 10 12 14 T im e (s ) 0 0 2 4 6 8 T im e (s ) Applica7ons § § § § § § § C urre nt (m A ) 4 1 m g we ig ht on R es is ta nc e c ha ng e (ohm s ) 1.650 Heartrate monitoring sensors Gesture controls Breath monitoring sensors Accelerometers Microphones Ar7ficial skins Impact sensors IP & Key Publica7ons § Graphene-­‐based materials, (PCT/AU2013/000939) § Patent covers both the synthesis method and a variety of applica5ons. § Qiu, Liu, Chang, Wu, Li, Nature Communica5ons 3, 1241 Opportuni7es for Collabora7on R & D Project collabora/on § Large scale and cost-­‐effec7ve p r o d u c 7 o n o f g r a p h e n e sponge sensors § Applica7on development Technology licensing § Heart rate monitoring sensors § Breath sensors § Accelerometers § Impact sensors Commercialisa/on § Pilot scale produc7on and device integra7on Key Contact Professor Dan Li Department of Materials Science and Engineering | Monash University Phone: +61 3 9905 9673 Email: dan.li2@monash.edu