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Effect of atomic layer deposition temperature on the performance of top-down ZnO nanowire transistors

Overview of attention for article published in Nanoscale Research Letters, September 2014
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1 tweeter

Citations

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13 Dimensions

Readers on

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15 Mendeley
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Title
Effect of atomic layer deposition temperature on the performance of top-down ZnO nanowire transistors
Published in
Nanoscale Research Letters, September 2014
DOI 10.1186/1556-276x-9-517
Pubmed ID
Authors

Suhana M Sultan, Nonofo J Ditshego, Robert Gunn, Peter Ashburn, Harold MH Chong

Abstract

This paper studies the effect of atomic layer deposition (ALD) temperature on the performance of top-down ZnO nanowire transistors. Electrical characteristics are presented for 10-μm ZnO nanowire field-effect transistors (FETs) and for deposition temperatures in the range 120°C to 210°C. Well-behaved transistor output characteristics are obtained for all deposition temperatures. It is shown that the maximum field-effect mobility occurs for an ALD temperature of 190°C. This maximum field-effect mobility corresponds with a maximum Hall effect bulk mobility and with a ZnO film that is stoichiometric. The optimized transistors have a field-effect mobility of 10 cm(2)/V.s, which is approximately ten times higher than can typically be achieved in thin-film amorphous silicon transistors. Furthermore, simulations indicate that the drain current and field-effect mobility extraction are limited by the contact resistance. When the effects of contact resistance are de-embedded, a field-effect mobility of 129 cm(2)/V.s is obtained. This excellent result demonstrates the promise of top-down ZnO nanowire technology for a wide variety of applications such as high-performance thin-film electronics, flexible electronics, and biosensing.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 15 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 1 7%
Unknown 14 93%

Demographic breakdown

Readers by professional status Count As %
Student > Master 5 33%
Student > Ph. D. Student 4 27%
Student > Doctoral Student 2 13%
Other 1 7%
Lecturer 1 7%
Other 1 7%
Unknown 1 7%
Readers by discipline Count As %
Engineering 6 40%
Materials Science 4 27%
Chemistry 1 7%
Energy 1 7%
Physics and Astronomy 1 7%
Other 0 0%
Unknown 2 13%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 03 October 2014.
All research outputs
#7,798,312
of 12,429,961 outputs
Outputs from Nanoscale Research Letters
#276
of 798 outputs
Outputs of similar age
#109,086
of 214,255 outputs
Outputs of similar age from Nanoscale Research Letters
#4
of 7 outputs
Altmetric has tracked 12,429,961 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 798 research outputs from this source. They receive a mean Attention Score of 2.2. This one has gotten more attention than average, scoring higher than 53% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 214,255 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one. This one has scored higher than 3 of them.