A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to...

LIBs is a kind of energy storage device, which has the advantages high density, no memory effect, good safety performance, and many cycles; It widely used in scientific technological fields at home abroad. With large-scale increase use lithium-ion batteries, amount scrap also increased. In order to better realize resource recovery, conservation emission reduction, it necessary study series new ...

A model for negative glow metal-vapor ion lasers that self-consistently describes the dynamics of the negative glow and the cathode sheath regions of the discharge has been developed. The model computes the electron energy distribution and the population of relevant excited states in the negative glow self-consistently with the charged particle fluxes and electric field distribution in the cath...

Chromium oxide (CrOx) cathode material (with chromium oxidation state of +5.3) was synthesized by thermal decomposition of chromium trioxide at high temperature and pressure in oxygen atmosphere. The duration of thermal decomposition had a significant effect on the performance of these materials in terms of lithiation capacity. The detrimental effect of CrO3 and lower oxidation state chromium o...

I t has been recognised that a major factor which affects the current efficiency in the commercial electrolytic cells for magnesium is the wettability of the cathode surface with respect to magnesium and the ability of the metal deposited to grow into a considerable size on cathode surface before getting released from it. Factors affecting these and studies to improve the wettability have alrea...

Here we reported the investigation of enhanced performance for the removal of hexavalent chromium (Cr (VI)) by a new microbial fuel cell (MFC) with natural pyrrhotite-coated cathode. By comparisons of the graphite-cathode, the MFCs equipped with a pyrrhotite-coated cathode generated the maximum power density of 45.4 mW·m−2 that was 1.3 times higher than that of with bare graphite cathode (35.5 ...