Diode

About: Diode is a research topic. Over the lifetime, 71552 publications have been published within this topic receiving 812496 citations.

Three-Dimensional, Tight Focusing of Intense Pulsed Light-Ion Beam by Spherical Plasma Focus Diode

Abstract: A new type of ion-beam diode, self-magnetically insulated, spherical plasma focus diode (SPFD), was developed. With the SPFD, three-dimensional focusing of an intense pulsed light-ion beam was obtained. Experiments and simulations were carried out to study the behavior of the SPFD. In the experiments, diagnostic results of the Rutherford scattering pinhole camera and the shadow-box showed that the ion beam was focused into a small cylindrical area with ∼0.5 mm in diameter and ∼2.5 mm in length. The average ion-beam current density at the anode surface was found to be ∼2 kA/cm 2 . In the simulations, it was observed that most of the diode gap is well insulated by the self-magnetic field induced by the diode current. The electron sheath in the diode gap significantly enhances the ion flow from the anode. As a result, the ion current density is several times higher than the single-species space-charge limited value.

White organic light-emitting diode

Abstract: A white organic light-emitting diode includes two symmetric emission layers and a middle emission layer. The two symmetric emission layers emit a first color light with approximately the same frequency components. The middle emission layer is located between the two symmetric emission layers. The middle emission layer emits a second color light with frequency components different from main frequency components of the first color light. When the voltage applied to the organic light-emitting diode changes and leads to a decrease of luminescent intensity of one of the symmetric emission layers, the other symmetric emission layer automatically increases the luminescent intensity to compensate for the reduced light intensity.

SEM-EBIC and traveling light spot diffusion length measurements: Normally irradiated charge-collecting diode

Abstract: An analysis of the induced current in a normally irradiated diode by monochromatic light or a SEM electron beam is given, which can be used to determine the diffusion length. Two light sources are considered: a traveling light spot and uniform illumination with part of the sample containing the diode shadowed by a knife-edge mask. The diffusion length is determined by readily computed numerical calculations.

Mixing and rectification properties of MIM diodes

Abstract: In this work we study the nonlinearity of the I—V characteristic of a MIM diode, as a source of information of its fundamental properties. While tunneling theory explains at least qualitatively the behavior of the high resistance contacts (R > 100 Ω), it falls short to explain the behavior of low resistance contacts. For low resistance contacts heating effects may become important.

Ring and axis mode switching in multielectrode strained InGaAsP multiple-quantum-well quasistadium laser diodes

Abstract: We describe the mode switching operation of multielectrode strained InGaAsP multiple-quantum-well quasistadium laser diodes. Far-field patterns exhibit highly directional emission along the laser cavity axis for current injection at the axis electrode and highly directional emission at angles ±19° from the cavity axis for current injection at the ring electrode. These directions correspond to the axis mode and the ring trajectory mode of the laser cavity. We also succeeded in obtaining single peak output beams using narrow curved end mirrors of 40μm width.