Comparison of interaction mechanisms of copper phthalocyanine and nickel phthalocyanine thin films with chemical vapours

被引：26

作者：

Ridhi, R. ^{[1
]}

Singh, Sukhdeep ^{[1
]}

Saini, G. S. S. ^{[1
]}

Tripathi, S. K. ^{[1
]}

机构：

[1] Panjab Univ, Dept Phys, Chandigarh 160014, India

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2018年 / 115卷

关键词：

Copper phthalocyanine; Nickel phthalocyanine; Chemical vapours; Benzene; Diethylamine; Bromine; ORGANIC VAPORS; GAS; MORPHOLOGY; ETHANOL; SENSOR; ZINC;

D O I：

10.1016/j.jpcs.2017.10.046

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The present study deals with comparing interaction mechanisms of copper phthalocyanine and nickel phthalocyanine with versatile chemical vapours: reducing, stable aromatic and oxidizing vapours namely; diethylamine, benzene and bromine. The variation in electrical current of phthalocyanines with exposure of chemical vapours is used as the detection parameter for studying interaction behaviour. Nickel phthalocyanine is found to exhibit anomalous behaviour after exposure of reducing vapour diethylamine due to alteration in its spectroscopic transitions and magnetic states. The observed sensitivities of copper phthalocyanine and nickel phthalcyanine films are different in spite of their similar bond numbers, indicating significant role of central metal atom in interaction mechanism. The variations in electronic transition levels after vapours exposure, studied using UV-Visible spectroscopy confirmed our electrical sensing results. Bromine exposure leads to significant changes in vibrational bands of metal phthalocyanines as compared to other vapours.

引用

页码：119 / 126

页数：8

共 38 条

[1] Fluorescence "turn on" probe for bromide ion using nanoconjugates of glutathione-capped CdTe@ZnS quantum dots with nickel tetraamino-phthalocyanine: Characterization and size-dependent properties [J].