亚酞菁薄膜的光谱和光存储性质研究

Spectral and Optical Recording Properties of a Novel Subphthalocyanine Thin Film

利用真空蒸镀法制备了一种新的三硝基溴硼亚酞菁 (BTN SubPc)薄膜。在室温下测试了该亚酞菁染料在溶液和薄膜态的吸收光谱、薄膜态的反射和透过光谱 ,发现该薄膜在 5 0 0nm～ 65 0nm波长范围内具有优良的吸收和反射特性。在 632 .8nm光盘静态测试仪上测试了覆盖有金属反射层的BTN SubPc薄膜的静态光存储性能 ,结果表明 ,用较小功率和较窄脉宽的激光辐照膜片时 ,可获得大于 30 %的反射率对比度 ,显示出该材料用作短波长光存储介质 (特别是用于可录型数字多用光盘 )

A novel bromoboron trinitro-subphthalocyanine (BTN-SubPc) thin film has been developed by vacuum evaporation for write-once optical recording. The absorption and reflection properties of the sublimated BTN-SubPc thin film are pretty good at 500 nm-650 nm, which matches well with the wavelength of semiconductor laser used in digital versatile disk (DVD) systems. The optical recording performance of the BTN-SubPc/Al multilayer shows that high reflectivity contrast (>30%) can be obtained at lower writing power (<10 mW) and shorter writing pulse width (300 ns) by using a He-Ne laser (632.8 nm) irradiation. The results demonstrate that subphthalocyanine is a promising material for short-wavelength optical recording, especially used as recording medium of DVD-Recordable (DVD-R).