Publication detail
SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS
SALYK, O. BEDNÁŘ, P. VALA, M. VYŇUCHAL, J.
Original Title
SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS
Type
journal article - other
Language
English
Original Abstract
Dipyridyldiketopyrrolopyrrole (DPPP) and phenylpyridyldiketopyrrolopyrrole were investigated in terms of acid vapour effect on their properties in comparison with diphenyldiketopyrrolopyrrole (DPP). Materials were deposited by vacuum evaporation in form of about 100 nm thin films. The reversible changes of UV-VIS light absorption as well as of IR absorption when treated in acid vapour were tested. The explanation of protonation of ternary nitrogen atom in pyridyl ring was accepted. The conductivity measured in gap electrode arrangement increased by 5 to 6 orders. All changes remained stable unless the sample was recovered by annealing at 170C and the entire process was fully reversible. The compounds exhibit good thermal and chemical stability and are suitable for sensing elements in sensors of acids vapours and hydrogen.
Keywords
Dipyridyldiketopyrrolopyrrole, UV-VIS spectra, IR spectra, conductivity
Authors
SALYK, O.; BEDNÁŘ, P.; VALA, M.; VYŇUCHAL, J.
RIV year
2009
Released
2. 11. 2009
Location
Polsko
ISBN
0137-1339
Periodical
MATERIALS SCIENCE-POLAND
Year of study
27
Number
3
State
Republic of Poland
Pages from
649
Pages to
658
Pages count
10
BibTex
@article{BUT47491,
author="Ota {Salyk} and Pavel {Bednář} and Martin {Vala} and Jan {Vyňuchal}",
title="SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS",
journal="MATERIALS SCIENCE-POLAND",
year="2009",
volume="27",
number="3",
pages="649--658",
issn="0137-1339"
}