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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Metal-organic frameworks (MOFs) possessing many unique features have beenutilized in several fields in recent years. However, their application in fieldemission (FE) vacuum electronic device is hindered by their poor electricalconductivity. Herein, a novel conductive MOF of Cu-catecholate (Cu-CAT) withthe nanorod length of 200 nm and conductivity of 0.01 S/cm is grown on thegraphite paper (GP). Under an applied electric field, a large number ofelectrons can be emitted from the nanoscale emitter tips of MOF surface to theanode. The great field emission performance of Cu-CAT@GP cold cathode filmincluding a low turn-on field of 0.59e6 V/m and ultra-high field enhancementfactor of 29622, even comparable to most carbon-based materials that have beenwidely investigated in FE studies, is achieved in this work. Meanwhile,Cu-CAT@GP film has a good electrical stability with a current attenuation of9.4% in two hours. The findings reveal the cathode film fabricated byconductive MOF can be a promising candidate of cold electron source for vacuumelectronic applications.

Stacked conductive metal organic framework nanorods for high performance vacuum electronic devices