Thin films of tetrafluorosubstituted cobalt phthalocyanine: Structure and sensor properties

被引：65

作者：

Klyamer, Darya D. ^{[1
,2
]}

Sukhikh, Aleksandr S. ^{[1
,2
]}

Krasnov, Pavel O. ^{[1
]}

Gromilov, Sergey A. ^{[1
,2
]}

Morozova, Natalya B. ^{[1
]}

Basova, Tamara V. ^{[1
,2
]}

机构：

[1] Nikolaev Inst Inorgan Chem SB RAS, Lavrentiev Pr 3, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Pirogova Str 2, Novosibirsk, Russia

来源：

APPLIED SURFACE SCIENCE | 2016年 / 372卷

基金：

俄罗斯科学基金会;

关键词：

Cobalt phthalocyanines; Thin films; Film structure; DFT calculations; Chemiresistive sensors; ELECTRON-WITHDRAWING SUBSTITUENTS; GAS-SENSING PROPERTIES; GAUSSIAN-BASIS SETS; ZINC PHTHALOCYANINE; MOLECULAR-ORIENTATION; POPULATION ANALYSIS; BOND ORDERS; ATOMS LI; CRYSTAL; MORPHOLOGY;

D O I：

10.1016/j.apsusc.2016.03.066

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, thin films of tetrafluorosubstituted cobalt phthalocyanine (CoPcF4) were prepared by organic molecular beam deposition and their structure was studied using UV-vis, polarization dependent Raman spectroscopy, XRD and atomic force microscopy. Quantum chemical calculations (DFT) have been employed in order to determine the detailed assignment of the bands in the CoPcF4 IR and Raman spectra. The electrical sensor response of CoPcF4 films to ammonia vapours was investigated and compared with that of unsubstituted cobalt phthalocyanine films. In order to explain the difference in sensitivity of the unsubstituted and fluorinated phthalocyanines to ammonia, the nature and properties of chemical binding between CoPc derivatives and NH3 were described by quantum-chemical calculations utilizing DFT method. The effect of post-deposition annealing on surface morphology and gas sensing properties of CoPcF4 films was also studied. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：79 / 86

页数：8

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