摘要
设计合成了可溶性的四 a (2.2.4 三甲基 3 戊氧基)酞菁铜(C64H80N8O4Cu),利用旋涂技术制备了四 a (2.2.4 三甲基 3 戊氧基)酞菁铜旋涂膜,研究了配合物旋涂膜的红外光谱、电子吸收光谱、对NO2和乙醇蒸汽的敏感特性以及气敏机理。结果表明:可溶性的四 a (2.2.4 三甲基 3 戊氧基)酞菁铜可制得较理想的旋涂膜,与溶液相比较旋涂膜的电子吸收光谱明显变宽,且Q带的2个吸收峰分别红移了16nm和12nm。室温下配合物旋涂膜对较低体积分数NO2呈现出良好的气敏性,在NO2为1.0～5.0×10-6体积分数范围内表现出较好的线性关系,而薄膜对乙醇蒸汽响应的体积分数为3.0×10-5。动力学研究表明:四 a (2.2.4 三甲基 3 戊氧基)酞菁铜旋涂膜对气体的吸附和脱附分2个过程完成。
The thin film based on soluble tetra-(2,2,4-trimethyl-3-pentyloxy) phthalocyanine copper(Ⅱ) is fabricated by spin coating,and is analyzed by IR spectra and the electronic absorption spectra,its gas sensitivities and mechanism are studied in different volume fraction of NO_2 and alcohol vapour.The results show that the ideal thin films of ttp-CuPc can be prepared by spin coating.The electronic absorption spectra of spin coating become obvionsly broad,and tow absorption peaks of Q-band of thin film shifting to the red are 16nm and 12nm respectively compared to solution.The spin coating films of ttp-CuPc show good gas sensitivity in the low NO_2 volume fraction and ideal linear relation in the range of its volume fraction of 1.0～5.0×10^(-6).In addition,volume fraction of response of the thin film on alcohol vapor is 3.0×10^(-5).The study of kinetics nature shows that the absorption and desorption of film on gas are divided into two linear parts.
出处
《传感器技术》
CSCD
北大核心
2004年第5期24-28,共5页
Journal of Transducer Technology
基金
黑龙江自然科学基金(B01-07)
