Duck Hyun Lee

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We present a flexible room temperature NO 2 gas sensor consisting of vertical carbon nanotubes ͑CNTs͒/reduced graphene hybrid film supported by a polyimide substrate. The reduced graphene film alone showed a negligible sensor response, exhibiting abnormal N–P transitions during the initial NO 2 injection. A hybrid film, formed by the growth of a vertically(More)
Ice accretion has a negative impact on critical infrastructure, as well as a range of commercial and residential activities. Icephobic surfaces are defined by an ice adhesion strength τice < 100 kPa. However, the passive removal of ice requires much lower values of τice, such as on airplane wings or power lines (τice < 20 kPa). Such low τice values are(More)
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