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Sensors (Basel)

Title:		"Fluorinated Metal Phthalocyanines: Interplay between Fluorination Degree, Films Orientation, and Ammonia Sensing Properties"
Author(s):		Klyamer D; Sukhikh A; Gromilov S; Krasnov P; Basova T;
Address:		"Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev Pr. 3, Novosibirsk 630090, Russia. klyamer@niic.nsc.ru. Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev Pr. 3, Novosibirsk 630090, Russia. a_sukhikh@niic.nsc.ru. Department of Natural Sciences, Novosibirsk State University, 2 Pirogov street, Novosibirsk 630090, Russia. a_sukhikh@niic.nsc.ru. Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev Pr. 3, Novosibirsk 630090, Russia. grom@niic.nsc.ru. Department of Natural Sciences, Novosibirsk State University, 2 Pirogov street, Novosibirsk 630090, Russia. grom@niic.nsc.ru. Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk 660041, Russia. kpo1980@gmail.com. Reshetnev Siberian State University of Science and Technology, 82 Mira prospect, Krasnoyarsk 660049, Russia. kpo1980@gmail.com. Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev Pr. 3, Novosibirsk 630090, Russia. basova@niic.nsc.ru. Department of Natural Sciences, Novosibirsk State University, 2 Pirogov street, Novosibirsk 630090, Russia. basova@niic.nsc.ru"
Journal Title:		Sensors (Basel)
Year:		2018
Volume:		20180703
Issue:		7
Page Number:		-
DOI:		10.3390/s18072141
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"In this work, the sensor response of MPcF(x) (M = Cu, Co, Zn; x = 0, 4, 16) films toward gaseous NH(3) (10(-)50 ppm) was studied by a chemiresistive method and compared to that of unsubstituted MPc films to reveal the effects of central metals and F-substituents on the sensing properties. A combination of atomic force microscopy and X-ray diffraction techniques have been used to elucidate the structural features of thin MPcF(x) films deposited by organic molecular beam deposition. It has been shown that the sensor response of MPcF(4) films to ammonia is noticeably higher than that of MPc films, which is in good correlation with the values of binding energy between the metal phthalocyanine and NH(3) molecules, as calculated by the density functional theory (DFT) method. At the same time, in contrast to the DFT calculations, MPcF(16) demonstrated the lesser sensor response compared with MPcF(4), which appeared to be connected with the different structure and morphology of their films. The ZnPcF(4) films were shown to exhibit a sensitivity to ammonia up to concentrations as low as 0.1 ppm, and can be used for the selective detection of ammonia in the presence of some reducing gases and volatile organic compounds. Moreover, the ZnPcF(4) films can be used for the detection of NH(3) in the gas mixture simulating exhaled air (N(2) 76%, O(2) 16%, H(2)O 5%, and CO(2) 3%)"
Keywords:		DFT calculations ammonia chemiresistive sensors metal phthalocyanines thin films;
Notes:		"PubMed-not-MEDLINEKlyamer, Darya Sukhikh, Aleksandr Gromilov, Sergey Krasnov, Pavel Basova, Tamara eng Switzerland 2018/07/05 Sensors (Basel). 2018 Jul 3; 18(7):2141. doi: 10.3390/s18072141"