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SALYK, O. BEDNÁŘ, P. VALA, M. VYŇUCHAL, J.
Originální název
SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
Dipyridyldiketopyrrolopyrrole, UV-VIS spectra, IR spectra, conductivity
Autoři
SALYK, O.; BEDNÁŘ, P.; VALA, M.; VYŇUCHAL, J.
Rok RIV
2009
Vydáno
2. 11. 2009
Místo
Polsko
ISSN
0137-1339
Periodikum
MATERIALS SCIENCE-POLAND
Ročník
27
Číslo
3
Stát
Polská republika
Strany od
649
Strany do
658
Strany počet
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" }