Charge pumping in InAs nanowires by surface acoustic waves

Stefano Roddaro; Elia Strambini; Lorenzo Romeo; Vincenzo Piazza; Kristian Nilsson; Lars Samuelson; Fabio Beltram

doi:10.1088/0268-1242/25/2/024013

Charge pumping in InAs nanowires by surface acoustic waves

Stefano Roddaro, Elia Strambini, Lorenzo Romeo, Vincenzo Piazza, Kristian Nilsson, Lars Samuelson, Fabio Beltram

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Abstract

We investigate the interaction between surface acoustic waves on a piezoelectric LiNbO3 substrate and charge carriers in InAs nanowire transistors. Interdigital transducers are used to excite electromechanical waves on the chip surface and their influence on the transport in the nanowire devices is studied at room temperature. Charge pumping is studied in different biasing conditions and in pulsed operation in order to assess interference effects due to reflected waves on the sample chip. Present results constitute a key building block for the realization of acoustoelectric nanodevices based on the InAs/InP nanowire technology.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Semiconductor science and technology
Volume	25
Issue number	2
DOIs	https://doi.org/10.1088/0268-1242/25/2/024013
Publication status	Published - 22 Jan 2010

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abstract = "We investigate the interaction between surface acoustic waves on a piezoelectric LiNbO3 substrate and charge carriers in InAs nanowire transistors. Interdigital transducers are used to excite electromechanical waves on the chip surface and their influence on the transport in the nanowire devices is studied at room temperature. Charge pumping is studied in different biasing conditions and in pulsed operation in order to assess interference effects due to reflected waves on the sample chip. Present results constitute a key building block for the realization of acoustoelectric nanodevices based on the InAs/InP nanowire technology.",

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AU - Roddaro, Stefano

AU - Strambini, Elia

AU - Romeo, Lorenzo

AU - Piazza, Vincenzo

AU - Nilsson, Kristian

AU - Samuelson, Lars

AU - Beltram, Fabio

N1 - eemcs-eprint-19584

PY - 2010/1/22

Y1 - 2010/1/22

N2 - We investigate the interaction between surface acoustic waves on a piezoelectric LiNbO3 substrate and charge carriers in InAs nanowire transistors. Interdigital transducers are used to excite electromechanical waves on the chip surface and their influence on the transport in the nanowire devices is studied at room temperature. Charge pumping is studied in different biasing conditions and in pulsed operation in order to assess interference effects due to reflected waves on the sample chip. Present results constitute a key building block for the realization of acoustoelectric nanodevices based on the InAs/InP nanowire technology.

AB - We investigate the interaction between surface acoustic waves on a piezoelectric LiNbO3 substrate and charge carriers in InAs nanowire transistors. Interdigital transducers are used to excite electromechanical waves on the chip surface and their influence on the transport in the nanowire devices is studied at room temperature. Charge pumping is studied in different biasing conditions and in pulsed operation in order to assess interference effects due to reflected waves on the sample chip. Present results constitute a key building block for the realization of acoustoelectric nanodevices based on the InAs/InP nanowire technology.

U2 - 10.1088/0268-1242/25/2/024013

DO - 10.1088/0268-1242/25/2/024013

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EP - 5

JO - Semiconductor science and technology

JF - Semiconductor science and technology

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ER -

Charge pumping in InAs nanowires by surface acoustic waves

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