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"
}