TY - JOUR

T1 - A study of the structural features and sensor properties of zinc 2,9,16,23-tetra-tert-butylphthalocyanine films

AU - Sukhikh, A. S.

AU - Polyakov, M. S.

AU - Klyamer, D. D.

AU - Gromilov, S. A.

AU - Basova, T. V.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - A comparative study of the structural features of zinc 2,9,16,23-tetra-tert-butylphthalocyanine films (ZnPc(tBu)4) obtained by vacuum thermal deposition and spin coating techniques is performed. By powder X-ray diffraction, 2D GIXD, and optical absorption spectroscopy it is shown that ZnPc(tBu)4 films obtained by the spin coating technique consist of a disordered α-phase with small crystallites. After annealing at 200 °C for 3 h the films transform into the β-phase, with crystallite sizes increasing, however, they remain disordered relative to the substrate surface. On heating under the same conditions, the ZnPc(tBu)4 films obtained by thermal vacuum sublimation transform from the weakly oriented low-temperature α-phase into the oriented β-phase. Dependences of a chemiresistive sensor response of the ZnPc(tBu)4 films to ammonia (10-50 ppm) are investigated depending on the preparation and annealing methods of the films.

AB - A comparative study of the structural features of zinc 2,9,16,23-tetra-tert-butylphthalocyanine films (ZnPc(tBu)4) obtained by vacuum thermal deposition and spin coating techniques is performed. By powder X-ray diffraction, 2D GIXD, and optical absorption spectroscopy it is shown that ZnPc(tBu)4 films obtained by the spin coating technique consist of a disordered α-phase with small crystallites. After annealing at 200 °C for 3 h the films transform into the β-phase, with crystallite sizes increasing, however, they remain disordered relative to the substrate surface. On heating under the same conditions, the ZnPc(tBu)4 films obtained by thermal vacuum sublimation transform from the weakly oriented low-temperature α-phase into the oriented β-phase. Dependences of a chemiresistive sensor response of the ZnPc(tBu)4 films to ammonia (10-50 ppm) are investigated depending on the preparation and annealing methods of the films.

KW - chemical sensors

KW - metal phthalocyanine

KW - molecular films

KW - powder XRD

KW - PHTHALOCYANINE THIN-FILMS

KW - COBALT PHTHALOCYANINE

KW - chemical sensors.

KW - LANGMUIR-BLODGETT-FILMS

KW - LAYERS

KW - MAGNESIUM PHTHALOCYANINE

KW - GROWTH

KW - X-RAY

KW - COPPER PHTHALOCYANINE

KW - ASSOCIATION

UR - http://www.scopus.com/inward/record.url?scp=85032276517&partnerID=8YFLogxK

U2 - 10.1134/S0022476617050262

DO - 10.1134/S0022476617050262

M3 - Article

AN - SCOPUS:85032276517

VL - 58

SP - 1039

EP - 1047

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 5

ER -