Bremsstrahlung and compound radiation of electron were considered as main mechanism of continuum emission.

Bremsstrahlung and compound radiation of electron were consider.

Theoretical study on radiative recombination and subsequent radiative decay of H-like uranium ions

A detailed investigation was carried out of radiative recombination in n-GaAs homojunction far-infrared detector structures by temperature-dependent steady-state photoluminescence measurements.

The results show that the PL spectra of the epilayers with high radiative recombination efficiencies are basically composed of sharp lines due to recombination of excitons bound to the N, and NN i traps, whereas the PL spectra of the epilayers with low efficiencies are bell shaped spectra of donor acceptor pair transitions superimposed with the NN i peaks.

Even though threading dislocations in GaN epitaxial layers have been demonstrated to be effective nonradiative recombination centers,the CL band edge peak intensity does not decrease as the dislocation density increases.

As a result that the rate of the nonradiative recombination is reduced,and the COD level is higher than before.

Reducing facet nonradiative recombination center involved to cleave the wafer into bar in ultrahigh vacuum and coating,and ion milling or chemical gas etching was used to remove the native oxide contaminant in the facet.