English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We report ultra-high density assembly of aligned single walled carbonnanotubes (SWNTs) two dimensional arrays via ac dielectrophoresis using highquality surfactant free and stable SWNT solutions. After optimization offrequency and trapping time, we can reproducibly control the linear density ofthe SWNT between prefabricated electrodes from 0.5 SWNT/\mum to more than 30SWNT /\mum by tuning the concentration of the nanotubes in the solution. Ourmaximum density of 30 SWNT/\mum is the highest for aligned arrays via anysolution processing technique reported so far. Further increase of SWNTconcentration results dense array with multiple layers. We discuss how theorientation and density of the nanotubes vary with concentrations and channellengths. Electrical measurement data show that the densely packed alignedarrays have low sheet resistances. Selective removal of metallic SWNTs viacontrolled electrical breakdown produced field effect transistors (FET) withhigh current on-off ratio. Ultra-high density alignment reported here will haveimportant implications in fabricating high quality devices for digital andanalog electronics.

Ultra-high density alignment of carbon nanotubes array by dielectrophoresis