Thin films of fluorinated 3d-metal phthalocyanines as chemical sensors of ammonia: an optical spectroscopy study

BASOVA, Tamara V., MIKHALEVA, Natalia S., HASSAN, Aseel K and KISELEV, Vitaly G. (2016). Thin films of fluorinated 3d-metal phthalocyanines as chemical sensors of ammonia: an optical spectroscopy study. Sensors and Actuators B: Chemical, 227, 634-642.

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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Link to published version:: 10.1016/j.snb.2015.12.079

Abstract

A comparative study of the sensor response toward gaseous ammonia of hexadecafluorinated 3d-metal phthalocyanine (MPcF16, MCu(II), Co(II), Zn(II), Ni(II)) thin films was performed using complementary experimental (viz., surface plasmon resonance, SPR, and IR absorption spectroscopy) along with theoretical (density functional theory calculations, DFT) techniques. SPR measurements revealed changes of both thickness and optical parameters (refraction indices and extinction coefficients) of the MPcF16 films caused by adsorption of NH3. The MPcF16 species studied exhibited the following order of sensor response: ZnPcF16>CoPcF16≥CuPcF16>NiPcF16. A good correlation was found between the DFT calculated (B3LYP/6-311++G(2df,p)) binding energies, experimentally measured shift of the selected IR bands, and the optical sensor response. Apart from this, we performed a detailed assignment of all intense...

Item Type: Article
Research Institute, Centre or Group: Materials and Engineering Research Institute > Thin Films Research Centre > Electronic Materials and Sensors Research Group
Identification Number: 10.1016/j.snb.2015.12.079
Depositing User: Carmel House
Date Deposited: 04 Aug 2016 12:17
Last Modified: 09 Dec 2016 07:45
URI: http://shura.shu.ac.uk/id/eprint/13105

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