The influence of O 2, CO 2, CO, N 2, H 2 and CH 4 on the stability of the quantum efficiency
(QE) of a negative electron affinity gallium arsenide (GaAs) photocathode activated with …

To clarify the performance differences between Cs-O and Cs-NF 3-activated GaAs
photocathodes, the changes in adsorption characteristics with Cs coverage for the Cs-O and …

In this study, the systematic stability and surface electronic properties of (100) surface GaN
nanowire are investigated through first principle calculations based on density functional …

We discuss some of the most relevant bonding scenarios for the adsorption of organic
molecules on solid surfaces from the perspective of first-principles calculations. The …

The surface Cs–O activation process directly determines quantum efficiency and stability of
negative-electron-affinity photocathodes. To investigate the effects of excessive Cs and O …

AlGaN photocathode has important applications in photoelectronic imaging and vacuum
electronic devices. However, The short lifetime of the photocathode results in higher costs of …

The electronic properties and optical properties of Cs-activated p-doped GaN nanowires
adsorbed by the residual gas molecules (H 2, CO, H 2 O, N 2, CH 4, CO 2) are calculated by …

We have investigated the stability and electronic properties of GaN nanowires photocathode
based on first-principle calculations. The most stable adsorption configuration of Cs adatoms …

Abstract Near-infrared In x Ga 1-x As photocathode with better optoelectronic properties is a
good candidate for low-light-level (LLL) night-vision system. However, the residual gases in …

In this paper, we use density functional theory (DFT) to calculate the deformation electron
density of 46 metal and semiconductor elements. The binding-energy and bond-charge …