ZnO Nanowire Field Effect Transistor for Biosensing: A Review

Research output: Contribution to journalArticle

Abstract

The last 19 years have seen intense research made on zinc oxide (ZnO) material mainly due to the ability of converting the natural n-type material into p-type. For a long time, the p-type state was impossible to attain and maintain. The review focuses on ways of improving the doped ZnO material which acts as a channel for nanowire field effect transistor (NWFET) and biosensor. The biosensor has specific binding which is called functionalisation achieved by attaching a variety of compounds on the designated sensing area. Reference electrodes and buffers are used as controllers. Top-down fabrication processes are preferred over bottom-up because they pave way for mass production. Different growth techniques are reviewed and discussed. Strengths and weaknesses of the FET and sensor are also reviewed.
Original languageEnglish
Pages (from-to)94-112
Number of pages19
JournalJournal of Nano Research
Volume60
DOIs
Publication statusPublished - 2019

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Zinc Oxide
Field effect transistors
Zinc oxide
bioinstrumentation
zinc oxides
Nanowires
nanowires
field effect transistors
Biosensors
controllers
buffers
fabrication
electrodes
sensors
Buffers
Fabrication
Controllers
Electrodes
Sensors

Cite this

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title = "ZnO Nanowire Field Effect Transistor for Biosensing: A Review",
abstract = "The last 19 years have seen intense research made on zinc oxide (ZnO) material mainly due to the ability of converting the natural n-type material into p-type. For a long time, the p-type state was impossible to attain and maintain. The review focuses on ways of improving the doped ZnO material which acts as a channel for nanowire field effect transistor (NWFET) and biosensor. The biosensor has specific binding which is called functionalisation achieved by attaching a variety of compounds on the designated sensing area. Reference electrodes and buffers are used as controllers. Top-down fabrication processes are preferred over bottom-up because they pave way for mass production. Different growth techniques are reviewed and discussed. Strengths and weaknesses of the FET and sensor are also reviewed.",
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ZnO Nanowire Field Effect Transistor for Biosensing: A Review. / Ditshego, Nonofo M.J.

In: Journal of Nano Research, Vol. 60, 2019, p. 94-112.

Research output: Contribution to journalArticle

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