ZnO: Eu red phosphor grown from Na2B4O7 melt

Abstract

A ZnO-based red phosphor was grown from a Na2B4O7 melt and the efficiency of Eu3+ ion excitation was demonstrated. The analysis of the emission related to the Eu3+ 4f-4f intrashell transitions suggests that the phosphor represents a nanocomposite consisting of ZnO and Na2B4O7 nanoparticles, a part of Eu3+ ions being incorporated into ZnO and another part into Na2B4O7 constituent.