104 citations · 282 across the 10 of their papers we have counts for
4 papers · 1 filter
Enhancing the response of NH3 graphene-sensors by using devices with different graphene-substrate distances
A. R. Cadore, E. Mania, A. B. Alencar +7
Graphene (G) is a two-dimensional material with exceptional sensing properties. In general, graphene gas sensors are produced in field effect transistor configuration on several su…
Thermo Activated Hysteresis on High Quality Graphene/h-BN Devices
A. R. Cadore, E. Mania, K. Watanabe +3
We report on gate hysteresis in resistance on high quality graphene/h-BN devices. We observe a thermal activated hysteretic behavior in resistance as a function of the applied gate…
Tuning the pn junction at a metal-graphene interface via H2 exposure
Alisson R. Cadore, Edrian Mania, Evandro A. Morais +4
Combining experiment and theory, we investigate how the naturally created heterojunction at a graphene and metallic contact is modulated via interaction with molecular hydrogen (H2…
ZnO UV photodetector with controllable quality factor and photosensitivity
Leonardo C. Campos, Marcos H. D. Guimaraes, Alem-Mar B. Goncalves +2
ZnO nanowires have an enormous potential for applications as ultra-violet (UV) photodetectors. Their mechanism of photocurrent generation is intimately related with the presence of…