采用螺旋波等离子体增强化学气相沉积(HWP-CVD)技术制备了氢化非晶氮化硅(a-SiNx:H)薄膜,利用光致发光谱(PL)和傅里叶红外吸收谱(FTIR)研究了不同气压条件下所形成薄膜的发光特性.结果表明,在较高气压条件下,所沉积薄膜的发光峰位在2.5 eV附近;减小气压使薄膜的沉积速率下降,其内部原子微观结构发生变化,薄膜的发光峰位在3.05 eV处,其半高宽为1.48 eV.
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