Dresden 2009 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 26: Focused Session: Novel nanowires electronic device concepts

HL 26.1: Topical Talk

Wednesday, March 25, 2009, 09:30–10:00, HSZ 01

Nanoelectronics - Why 1D nanowires? — •Joerg Appenzeller — School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA

While nano-materials have been explored extensively for the last fifteen years or so, the societal impact has been rather limited due to the lack of a substantial amount of nano-applications. This is in part a result of the time it takes to gain the necessary understanding of the material properties and underlying physics/chemistry, to a larger extend it is due to the fact that most studies do not cover materials and devices aspects with a clear application in mind simultaneously. For example, nano-materials frequently are discussed in the context of high density electronic applications. This seems to be a natural choice due to their intrinsic smallness. However, nano-materials have to offer unique electronic properties that enable new types of devices applications in order to be suitable for a future nano-electronics. One of the * if not THE - most pressing questions in the area of electronics is how to reduce power consumption. Here we discuss the impact of dimensionality and body thickness - the diameter in case of a nanowire - on the performance of nano-devices. We will elucidate on the impact of the wire diameter on the device on-state and off-state as well as the scaling of wire based transistors and the implications for low power device applications.