A simple scalable scheme is reported for fabricating suspended carbonnanotube field effect transistors (CNT-FETs) without exposing pristine as-growncarbon nanotubes to subsequent chemical processing. Versatility and ease of thetechnique is demonstrated by controlling the density of suspended nanotubes andreproducing devices multiple times on the same electrode set. Suspending thecarbon nanotubes results in ambipolar transport behavior with negligiblehysteresis. The Hooges constant of the suspended CNT-FETs (2.6 x 10-3) is about20 times lower than for control CNT-FETs on SiO2 (5.6 x 10-2).
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机译：据报道，一种简单的可扩展方案可用于制造悬浮碳纳米管场效应晶体管（CNT-FET），而无需将原始的生长态碳纳米管暴露于后续化学处理中。通过在同一电极组上多次控制悬浮的纳米管和复制设备的密度，证明了该技术的多功能性和易用性。碳纳米管的悬浮导致双极性传输行为，其磁滞可以忽略不计。悬浮的CNT-FET的Hooges常数（2.6 x 10-3）比SiO2上的对照CNT-FET（5.6 x 10-2）低约20倍。
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