Microspheres manipulation system by patterned AlGaN/GaN 2DEG electrodes

Junxue FU; Kevin J. Chen

doi:10.1002/pssc.201001006

Microspheres manipulation system by patterned AlGaN/GaN 2DEG electrodes

Junxue FU^*, Kevin J. Chen

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Journal article › peer-review

1 Citation (Scopus)

Abstract

A manipulation system utilizing the properties of two-dimensional electron gas (2DEG) at the interface of AlGaN/GaN and dielectrophoresis (DEP) was investigated in this study. At an applied frequency ranging from 100 kHz to 1 MHz and a potential of 20 v_{peak to peak}, the positive and negative DEP of the microspheres were reported for the first time by the Fluorine ion patterned and parylene covered 2DEG. In addition, by simply switching the applied frequency between 100 kHz and 500 kHz, the microspheres could come onto or get off from 2DEG region of AlGaN/GaN surface. Thus, a promising sensing scheme was proposed by combining the manipulation with sensing properties of 2DEG. This manipulation system based on 2DEG will bring much benefit to sensor applications.

Original language	English
Pages (from-to)	2479-2482
Number of pages	4
Journal	Physica Status Solidi (C) Current Topics in Solid State Physics
Volume	8
Issue number	7-8
DOIs	https://doi.org/10.1002/pssc.201001006
Publication status	Published - Jul 2011

User-Defined Keywords

Dielectrophoresis
Manipulation
Sensing
Two-dimensional electron gas

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title = "Microspheres manipulation system by patterned AlGaN/GaN 2DEG electrodes",

abstract = "A manipulation system utilizing the properties of two-dimensional electron gas (2DEG) at the interface of AlGaN/GaN and dielectrophoresis (DEP) was investigated in this study. At an applied frequency ranging from 100 kHz to 1 MHz and a potential of 20 vpeak to peak, the positive and negative DEP of the microspheres were reported for the first time by the Fluorine ion patterned and parylene covered 2DEG. In addition, by simply switching the applied frequency between 100 kHz and 500 kHz, the microspheres could come onto or get off from 2DEG region of AlGaN/GaN surface. Thus, a promising sensing scheme was proposed by combining the manipulation with sensing properties of 2DEG. This manipulation system based on 2DEG will bring much benefit to sensor applications.",

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T1 - Microspheres manipulation system by patterned AlGaN/GaN 2DEG electrodes

AU - FU, Junxue

AU - Chen, Kevin J.

PY - 2011/7

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AB - A manipulation system utilizing the properties of two-dimensional electron gas (2DEG) at the interface of AlGaN/GaN and dielectrophoresis (DEP) was investigated in this study. At an applied frequency ranging from 100 kHz to 1 MHz and a potential of 20 vpeak to peak, the positive and negative DEP of the microspheres were reported for the first time by the Fluorine ion patterned and parylene covered 2DEG. In addition, by simply switching the applied frequency between 100 kHz and 500 kHz, the microspheres could come onto or get off from 2DEG region of AlGaN/GaN surface. Thus, a promising sensing scheme was proposed by combining the manipulation with sensing properties of 2DEG. This manipulation system based on 2DEG will bring much benefit to sensor applications.

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KW - Manipulation

KW - Sensing

KW - Two-dimensional electron gas

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DO - 10.1002/pssc.201001006

M3 - Journal article

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VL - 8

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JO - Physica Status Solidi (C) Current Topics in Solid State Physics

JF - Physica Status Solidi (C) Current Topics in Solid State Physics

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ER -

Microspheres manipulation system by patterned AlGaN/GaN 2DEG electrodes

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