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  • 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.
  • 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. (en)
Title
  • SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS
  • SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS (en)
skos:prefLabel
  • SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS
  • SENSORIC PROPERTIES OF AROMATIC AND HETEROCYCLIC COMPOUNDS WITH CONJUGATED BONDS (en)
skos:notation
  • RIV/00216305:26310/09:PU82718!RIV10-GA0-26310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA203/08/1594)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 340818
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26310/09:PU82718
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Dipyridyldiketopyrrolopyrrole, UV-VIS spectra, IR spectra, conductivity (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • PL - Polská republika
http://linked.open...ontrolniKodProRIV
  • [B49327E0C7B8]
http://linked.open...i/riv/nazevZdroje
  • MATERIALS SCIENCE-POLAND
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 27
http://linked.open...iv/tvurceVysledku
  • Salyk, Ota
  • Vala, Martin
  • Vyňuchal, Jan
  • Bednář, Pavel
issn
  • 0137-1339
number of pages
http://localhost/t...ganizacniJednotka
  • 26310
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