Enhanced field emission from ZnO nanotetrapods on a carbon nanofiber buffered Ag film by screen printing

Li, Chi; Hou, Kai; Yang, Xiaxi; Qu, Ke; Lei, Wei; Zhang, Xiaobing; Wang, Baoping; Sun, Xiao Wei

doi:10.1063/1.3046779

Cited by 17 publications

(12 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some studies have addressed the enhancement of the FE factor by the addition of negative electron affinity; reduced the screening effect of ZnO nanostrature, and changed the work function [13,14]. Bae et al synthesized C-axis ZnO nanocones by pulsed laser deposition (PLD) on an Si substrate.…”

Section: Introductionmentioning

confidence: 99%

Enhanced field emission of well-aligned ZnO nanowire arrays illuminated by UV

Chen

Chang

et al. 2010

Chemical Physics Letters

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Enhanced field emission of well-aligned ZnO nanowire arrays illuminated by UV

Chen

Chang

et al. 2010

Chemical Physics Letters

View full text Add to dashboard Cite

“…12 Tetrapod-shaped ZnO has been suggested to be a good absorber due to its unique structure. 13,14 There have been no reports on EM wave absorption using urchinlike materials. In addition to 1D nanostructures, such as ZnO nanotetrapods, 15 hierarchical amorphous TiO 2 nanocolumns, 16 and hierarchical microsphere/SWCNT composite arrays have been reported.…”

Section: Introductionmentioning

confidence: 99%

A 3D α-Fe₂O₃nanoflake urchin-like structure for electromagnetic wave absorption

Hsu

Chang

et al. 2012

Dalton Trans.

View full text Add to dashboard Cite

An α-Fe(2)O(3) nanoflake urchin-like structure is formed via the thermal oxidation of micrometre-sized iron spheres in air at temperatures of 300-400 °C. The material consists of α-Fe(2)O(3) nanoflakes grown perpendicularly to the sphere surface, a layer of a mixture of α-Fe(2)O(3) and Fe(3)O(4) as the oxidation shell, and an iron core. The ranges of the tip diameters of the nanoflakes are 20-30 nm (300 °C), 30-50 nm (350 °C), and 60-100 nm (400 °C). A composite consisting of the α-Fe(2)O(3) nanoflake urchin-like structure and an epoxy resin exhibits an excellent electromagnetic (EM) wave absorption ability. A small tip diameter (20-30 nm) and a high density (3 × 10(13) nanoflakes m(-2)) lead to a good network structure and good EM wave absorption. A minimum reflection loss (RL) of -33.8 dB (99.93% of EM wave absorption) at 7.8 GHz can be achieved using a 70 wt% urchin-like material as the filler in the resin matrix. In addition, a composite containing 60 wt% unchin-like material exhibits dual-frequency EM wave absorption. The peaks of the minimum RL values are located at 9.7 GHz (-26.2 dB) and 25.2 GHz (-21.0 dB). The unique morphology of the α-Fe(2)O(3) nanoflake urchin-like material is believed to be a key factor in the enhancement of the EM wave absorption.

show abstract

“…Vol.26 aldefectsandcomplicatedmicrostructuresexistinthenanowire arrays.Thusthehigher E ton and E thr value,thelower J atthesame field E valueareachieved [7][8] .SotheZnOnanowiresampleinFig. 3(d)withhighaspectratio,thinnessofthetipsandsparsemicrostruc-tureshowsbetterfieldemissioncharacteristics.…”

mentioning

confidence: 97%

“…Vol.26 primaryinfluencefactorsonthefieldemissionproperties [6][7][8][9] . However,thefieldemissionpropertiesof1DZnOnanowires withdifferentgeometricalstructuresstillhavemanyobscure problemstodealwith.Forexample,thefieldemissionproper-tiesofZnOnanowirearrayswithregularhighaspectratioand theeffectofemitterdensityonthefield鄄screeningwererarely stud-iedduetothedifficultyinthepreparationofthoseemitters withdifferentdensities.Therefore,itisessentialtosynthesize well鄄aligned1DZnOnanostructuresandpursuethephysicalori-ginsofthedependenceofthefieldemissionof1DZnOnanowireemittersonthegeometricalfactorsforimprovingtheirfield emissionproperties.…”

mentioning

confidence: 99%