Mieczysław Łapkowski

ORCID: 0000-0001-7099-3982
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About
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Research Areas
  • Conducting polymers and applications
  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Electrochemical Analysis and Applications
  • Analytical Chemistry and Sensors
  • Electrochemical sensors and biosensors
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Luminescence and Fluorescent Materials
  • Synthesis and properties of polymers
  • Porphyrin and Phthalocyanine Chemistry
  • Polyoxometalates: Synthesis and Applications
  • Photochromic and Fluorescence Chemistry
  • Advanced Sensor and Energy Harvesting Materials
  • Photochemistry and Electron Transfer Studies
  • Transition Metal Oxide Nanomaterials
  • Molecular Junctions and Nanostructures
  • Synthesis and Biological Evaluation
  • Fuel Cells and Related Materials
  • Synthesis and Properties of Aromatic Compounds
  • Nonlinear Optical Materials Research
  • Organic Chemistry Cycloaddition Reactions
  • Catalytic Cross-Coupling Reactions
  • Spectroscopy and Quantum Chemical Studies
  • Copper-based nanomaterials and applications

Silesian University of Technology
2015-2024

Polish Academy of Sciences
2015-2024

Centre of Polymer and Carbon Materials
2015-2024

Cambridge Consultants (United Kingdom)
2023

Pohang University of Science and Technology
2023

University College London
2023

Institut de Recherche Interdisciplinaire de Grenoble
2023

Georgia Institute of Technology
2023

Northwestern University
2023

Royal Society of Chemistry
2023

The effect of polyaniline deuteration on the Raman spectra this polymer has been studied in detail. Four types samples have prepared: nondeuterated polyaniline, deuterated selectively ring, nitrogen, and both ring nitrogen. Selective allowed for experimental verification modes assignment proposed different polyaniline. In particular, contribution C−H bending to C−C stretchings benzoid quinoid rings chain confirmed. addition, selective enabled us identify, first time band associated with N−H...

10.1021/jp953387e article EN The Journal of Physical Chemistry 1996-01-01

Raman spectra of neutral and electrochemically doped regioregular poly(3-decylthiophene) were studied using different excitation lines, namely, 457.9, 514.5, 676, 1064 nm. Contrary to the case nonregioregular obtained by polymerization with FeCl3, in polymer position principal band (due CαCβ stretchings) is essentially independent wavelength, proving its high structural homogeneity extended conjugation. spectroelectrochemical studies oxidative doping can be clearly correlated cyclic...

10.1021/jp960104p article EN The Journal of Physical Chemistry 1996-01-01

Surface enhanced Raman scattering (SERS) is being increasingly used for the study of structural properties conducting polymer thin films. It generally accepted that enhancement process has an electromagnetic origin, arising from excitation surface plasmons in metal support on which film deposited. However, also accompanied by a chemical process, available experimental data are scarce. The originates increase polarizability molecules at under action incident radiation, leads to formation new...

10.1002/(sici)1097-4555(199809)29:9<825::aid-jrs309>3.0.co;2-2 article EN Journal of Raman Spectroscopy 1998-09-01

In this work, we focus on the formation of different kinds charge carriers such as polarons and bipolarons upon p-type doping (oxidation) organic semiconductor poly(3- hexylthiophene-2,5-diyl) (P3HT). We elucidate cyclic voltammogram during oxidation polymer present spectroscopic changes in UV/Vis/near-IR range well mid-IR range. low-oxidation regime, two absorption bands related to sub-gap transitions appear, one UV/Vis another The gradually decreases further while shifts lower energy....

10.1002/cphc.201600961 article EN ChemPhysChem 2016-09-29

Organic electronics, mainly due to advancements in OLED (organic light-emitting diode) technology, is a fast developing research area having already revolutionized the displays market. This direction presents use of exciplex emitters and thermally activated delayed fluorescence (TADF) OLEDs, give efficient, stable that do not scarce expensive materials such as iridium. Here, it shown for first time several diketopyrrolopyrrole (DPP) derivatives could be used devices. We were able improve...

10.1021/acs.jpcc.5b11263 article EN The Journal of Physical Chemistry C 2016-01-11

A series of six conjugated aromatic polyazomethines has been obtained by high-temperature solution polycondensation diformyltriphenylamine with different primary diamines. The structures polymers are characterized means FTIR, 1H NMR, and 13C NMR spectroscopy elemental analysis; the results show an agreement proposed structure. Polyazomethines emitted blue or blue-green light. Relative PL intensity investigated in chloroform was found about 0.30%, while for doped ones it 20% relation to...

10.1021/ma702637k article EN Macromolecules 2008-08-26

The first functionalization of polyaniline films, using acid forms heteropolyanions as electrolytes, is reported; the modified electrodes thus obtained are employed in electrocatalytic reduction oxygen and protons.

10.1039/c39880000533 article EN Journal of the Chemical Society Chemical Communications 1988-01-01

The radical cation of carbon-sulfur [7]helicene is configurationally stable in solution at room temperature. In contrast to the cations alpha-oligothiophenes, which form diamagnetic pi-dimers low temperature, this helical, cross-conjugated beta-oligothiophene shows a propensity toward dimerization.

10.1021/ja910076n article EN Journal of the American Chemical Society 2010-02-19

Nitroaromatic compounds in general and 2,4,6-trinitrophenol (picric acid) particular have recently attracted significant research attention as environmental contaminants. This spurred a wave of development regarding the methods detecting these compounds. work focuses on picric acid most common problematic The key classes materials sensitive to are indicated, recent developments discussed detail. Particular is given detection speciation capabilities utilising them, with various technical...

10.3390/app13063991 article EN cc-by Applied Sciences 2023-03-21
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