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- W2007765624 abstract "Graphene was synthesized on a Cu film by chemical vapor deposition (CVD) and its grain size was analyzed by using dark-field transmission electron microscopy. The grain size was mainly controlled by changing the partial pressure of hydrocarbons in H 2 /Ar. The grain size increased as the partial pressure of C 2 H 4 decreased, but eventually leveled off. The size saturation may be related to the long growth time at a low partial pressure. It was also revealed that growth using CH 4 provided graphene with larger grain sizes than that using C 2 H 4 at the same partial pressure. Back-gate transistors were then fabricated using graphene with various grain sizes, and the dependence of field-effect mobility on the grain size was investigated. The mobility roughly scales with the grain size, but the intergrain angles and/or small holes at grain boundaries also seem to affect the carrier mobility. It was also found that low mobility was often caused by fractures and/or wrinkles in graphene channels." @default.
- W2007765624 created "2016-06-24" @default.
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- W2007765624 date "2013-11-01" @default.
- W2007765624 modified "2023-09-25" @default.
- W2007765624 title "Dependence of Field-Effect Mobility of Graphene Grown by Thermal Chemical Vapor Deposition on Its Grain Size" @default.
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- W2007765624 doi "https://doi.org/10.7567/jjap.52.110106" @default.
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