Spectral and kinetic properties of electroluminescence of ZnS:Cu powder in polymer structure

TL;DR

This study investigates the spectral and kinetic characteristics of electroluminescence in a ZnS:Cu powder embedded in a polymer structure, revealing emission at 455 nm under AC excitation.

Contribution

It provides detailed spectral and kinetic data on ZnS:Cu electroluminescence within polymer structures, which was previously less characterized.

Findings

Emission peak at 455 nm identified

Blue-green light emitted during AC excitation

Kinetic response measured with 1 ms pulse duration

Abstract

Spectral and kinetic measurements of the light output have been made for AC electroluminescent structure. ZnS:Cu is luminescence active layer in the structure. In kinetic measurements, excitation was by rectangular wave voltage pulse of 1 ms duration. During the excitation the structure emits blue-green light. The maximum of the spectrum lies at about 455 nm.