Electroluminescence from Er-doped GaP

Abstract
The electroluminescent properties of the Er‐doped GaP light‐emitting diodes prepared by metalorganic vapor phase epitaxy and diffusion were investigated. Strong characteristic Er3+ intra‐4f‐shell emission at 0.80 eV is observed over the temperature range of 12–300 K. The electroluminescence intensity is only weakly temperature dependent, decreasing less than 40% as the temperature increases from 20 to 300 K.