Research on the fabricating techniques of the BaAl₂S₄: Eu sputtering targets

A new method on the fabricating techniques of the BaAl₂S₄:Eu sputtering target is introduced, which is called powder sintering method. The particular fabricating conditions based on the BaAl₂S₄: Eu sample are illustrated as comminution, rubbing, sintering and hot-pressing. The photoluminescence spectrum of the BaAl₂S₄:Eu films shows that there are 470nm PL emission peaks of the as-fabricated phosphor films excited by 300nm ultraviolet radiations. The BaAl₂S₄ :Eu films contain more oxygen than other elements such as Ba,Al,S,Eu, and the content of Al aggrandizes when the sputtering power increases and the content of S decreases when the pressure increases in the vacuum chamber.