TY - JOUR
T1 - Enhanced field emission from metal-coated carbon nanowalls
AU - Kaneko, Yuta
AU - Terada, Kosuke
AU - Teii, Kungen
PY - 2019
Y1 - 2019
N2 - Fine-grained metals with sizes as small as 10 nm are deposited on nitrogen-incorporated carbon nanowalls to enhance field emission. The amount of metal coating is varied using the nominal thickness to control morphology and coverage of metal nanoparticles. The emission turn-on field decreases down to around 1.6 V um-1 and 1.8 V um-1 with increasing thickness of Ag and Au to 2 nm and 4 nm, respectively, and increases for further increase in thickness. A lower turn-on field corresponds well to a larger field enhancement factor, confirming that additional field enhancement with the morphological evolution of metal nanoparticles governs emission performance.
AB - Fine-grained metals with sizes as small as 10 nm are deposited on nitrogen-incorporated carbon nanowalls to enhance field emission. The amount of metal coating is varied using the nominal thickness to control morphology and coverage of metal nanoparticles. The emission turn-on field decreases down to around 1.6 V um-1 and 1.8 V um-1 with increasing thickness of Ag and Au to 2 nm and 4 nm, respectively, and increases for further increase in thickness. A lower turn-on field corresponds well to a larger field enhancement factor, confirming that additional field enhancement with the morphological evolution of metal nanoparticles governs emission performance.
UR - http://www.scopus.com/inward/record.url?scp=85076618615&partnerID=8YFLogxK
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U2 - 10.7567/1347-4065/ab43cd
DO - 10.7567/1347-4065/ab43cd
M3 - Article
AN - SCOPUS:85076618615
VL - 58
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 11
M1 - 118002
ER -