Articles you may be interested in Fabrication and characterization of single carbon nanotube emitters as point electron sources Appl. Source brightness and useful beam current of carbon nanotubes and other very small emitters Carbon nanotubes synthesized by biased thermal chemical vapor deposition as an electron source in an x-ray tube Appl. On-chip vacuum microtriode using carbon nanotube fiel...

Articles you may be interested in Stable high temperature metamaterial emitters for thermophotovoltaic applications Appl. Selective emitters design and optimization for thermophotovoltaic applications

Field emitters can be used as a cathode electrode in a cathodoluminescence device, and single-walled carbon nanotubes (SWCNTs) that are synthesized by arc discharge are expected to exhibit good field emission (FE) properties. However, a cathodoluminescence device that uses field emitters radiates rays whose intensity considerably fluctuates at a low frequency, and the radiant fluctuation is cau...

The degree of polarization (DOP) of luminescence of III-V materials is a sensitive function of the strain in the material. The DOP can be measured with a spatial resolution of roughly 1 μm and an rms noise equivalent to a strain difference of 2H10. The DOP can be measured on cleaved facets, surfaces free of metals, or luminescent layers buried by transparent materials or thin films. Thus maps o...

We investigate the effect of peculiar velocities on the redshift space distribution of z >∼ 2 galaxies, and we focus in particular on Lyα emitters. We generate catalogues of dark matter (DM) halos and identify emitters with halos of the same comoving space density (M(Lyα emitters) ≈ 3× 1011M⊙). We decompose the peculiar velocity field of halos into streaming, gradient and random components, and...

Recently developed all-organic emitters used in display applications achieve high brightness by harvesting triplet populations via thermally activated delayed fluorescence. The photophysical properties of these emitters therefore involve new inherent complexities and are strongly affected by interactions with their host material in the solid state. Ensemble measurements occlude the molecular de...

gations that leached the material from the emitter zone reduced its effectiveness. Quantitative descriptions of The transport of a pulse of trifluralin (2,6-dinitro-N,N-dipropyl-4the fate and transport of trifluarlin in the soil, therefore, [trifluoromethyl] benzenamime) applied via a subsurfacedripper was analyzed numerically. Results of the analyses suggest that the moveare essential for the ...

This research presents a new variable rate drip irrigation (VRDI) emitter design that can monitor individual water drops. Conventional systems cannot the flow per emitter. Application uniformity for conventional emitters be decreased by clogged emitters, irregular orifices, and decreases in pressure. A VRDI overcome challenges field increasing application each plant reducing losses. Flow is aff...

Carbon nanotube (CNT) field emitters that exhibit extremely high stability against high-voltage arcing have been demonstrated. The CNT emitters were fabricated on a sharp copper tip substrate that produces a high electric field. A metal mixture composed of silver, copper, and indium micro- and nanoparticles was used as a binder to attach CNTs to the substrate. Due to the strong adhesion of the ...

We report a single molecule detection scheme to investigate excitation spectra of single emitters at room temperature. We demonstrate the potential of single emitter photoluminescence excitation spectroscopy by recording excitation spectra of single CdSe nanocrystals over a wide spectral range of 100 nm. The spectra exhibit emission intermittency, characteristic of single emitters. We observe l...