Abstract:Lower turn-on field (E
TO)
and threshold
field (E
THR), as well as a higher current
density, are desired characteristics of materials and structures for
field emission (FE) applications. In this work, the properties of
a boron-doped diamond (BDD) hollow nanoneedle array (HNNA) structure
were remarkably enhanced through surface state modulation. By designedly
controlling the surface roughness and boron concentration of the BDD
film, a uniform and dense HNNA with a high aspect ratio (∼21.3)
was constructed by ap… Show more
“…Hence, although the turn-on electric field is not significantly improved and is still much higher than those of many reported ultralow turn-on field emitters, these two treatment methods greatly extend the lifetime of CNT emitters, which is longer than the lifetime of those field emitters with lower turn-on electric fields. [16][17][18][19][20][21][22]24,44,45 Therefore, this simple and costsaving treatment gives CNT emitters an advantage over other types of CNT emitters as well as other carbon material-based emitters.…”
Section: Long-term Stability and Lifetime Testingmentioning
confidence: 99%
“…Hence, because of the low lifetime of CNT field emitters, researchers gradually turned to finding other carbon materials with better field emission properties, such as diamond or nano walls. [16][17][18][19][20] These carbon-based field emitters have been found to have lower turn-on voltages and more stable emission currents and longer lifetime, especially after certain chemical treatments. However, these types of emitters usually have a relatively more complex and costly fab-rication process.…”
In this paper, we present two methods to improve field emission (FE) performance of vertically aligned carbon nanotube emitters that are treated with dimethyl sulfoxide (DMSO) solution and poly (3,4-ethylene...
“…Hence, although the turn-on electric field is not significantly improved and is still much higher than those of many reported ultralow turn-on field emitters, these two treatment methods greatly extend the lifetime of CNT emitters, which is longer than the lifetime of those field emitters with lower turn-on electric fields. [16][17][18][19][20][21][22]24,44,45 Therefore, this simple and costsaving treatment gives CNT emitters an advantage over other types of CNT emitters as well as other carbon material-based emitters.…”
Section: Long-term Stability and Lifetime Testingmentioning
confidence: 99%
“…Hence, because of the low lifetime of CNT field emitters, researchers gradually turned to finding other carbon materials with better field emission properties, such as diamond or nano walls. [16][17][18][19][20] These carbon-based field emitters have been found to have lower turn-on voltages and more stable emission currents and longer lifetime, especially after certain chemical treatments. However, these types of emitters usually have a relatively more complex and costly fab-rication process.…”
In this paper, we present two methods to improve field emission (FE) performance of vertically aligned carbon nanotube emitters that are treated with dimethyl sulfoxide (DMSO) solution and poly (3,4-ethylene...
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