气敏酞菁锌薄膜透射光谱特性  

Transmission Spectrum for Gas-Sensing Zinc Phthalocyanine Thin Films

作　　者：于继荣[1] 梁迪众[1] 黄光周[1] 周佐平 

机构地区：[1]华南理工大学电子与通信工程系

出　　处：《传感器技术》1998年第2期4-5,8,共3页Journal of Transducer Technology

基　　金：国家自然科学基金

摘　　要：采用真空升华方法制备了酞菁锌（ＺｎＰｃ）薄膜，并分别测量薄膜在不同浓度的乙醇和ＮＨ３气体中的透射光谱。结果发现，波长为３５０ｎｍ时有强的吸收峰，波长为４６０ｎｍ时光透射率最大；薄膜在乙醇气体中的透射率随浓度的增加而下降；ＮＨ３浓度的变化对薄膜的光透射率基本无影响。这说明Ｚｎ－Ｐｃ薄膜有良好的气敏光谱特性。The zinc phthalocyanine(ZnPc) thin films are deposited on glass substrates by vacuum sublimation.The transmissive spectra of ZnPc thin films are measured in alcohol and NH 3 gas with different concentrations.There is strong absorption peak corresponding to wavelength of 350 nm.There is a maximal transmission peak corresponding to wavelength of 460 nm.The transmission of films descents obviously with increasing alcohol gas concentration and not changes with increasing NH 3 concentration.The ZnPc thin films have excllent gas selectivity and gas sensing optical spectrum selectivity.

关 键 词：酞菁锌 气敏光谱 薄膜 

分 类 号：O625.5[理学—有机化学]