Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Valdis Kokars"'
Autor:
Armands Sebris, Irina Novosjolova, Kaspars Traskovskis, Valdis Kokars, Natalija Tetervenoka, Aivars Vembris, Ma̅ris Turks
Publikováno v:
ACS Omega, Vol 7, Iss 6, Pp 5242-5253 (2022)
Externí odkaz:
https://doaj.org/article/e18efd44a8fd43de93b546be38942abf
Autor:
Valdis Kokars
58th International Conference of Materials Science and Applied Chemistry (MSAC 2017)Selected, peer reviewed papers from the 58th International Conference of Materials Science and Applied Chemistry - MSAC 2017, October 20, 2017, Riga, Latvia
Autor:
Patricija Paulsone, Valdis Kokars, Karlis Balodis, Aivars Vembris, Elmārs Zariņš, Deins Alksnis
Publikováno v:
Key Engineering Materials. 903:168-173
In order to develop reliable methods for the synthesis of various 5-substituted-8-oxyquinoline derivatives for the preparation of Alq3-type complexes, we have improved the reaction conditions on some syntheses described in the literature, successfull
Autor:
Margarita Anna Zommere, Kirills Dmitrijevs, Žanis Sisojevs, Kaspars Traskovskis, Valdis Kokars, Aivars Vembris
Publikováno v:
Organic Electronics and Photonics: Fundamentals and Devices III.
Autor:
Lauma Laipniece, Andris Ozols, Kaspars Traskovskis, Armands Ruduss, Valdis Kokars, Peteris Augustovs, Karlis Balodis
Publikováno v:
Key Engineering Materials. 850:285-290
Holographic grating recording and relaxation is studied in different azobenzene molecular glassy films by circularly orthogonally polarized 532 nm laser beams L and R. The readout was made by circularly polarized (R or L) 632.8 nm laser beam. Sandwic
Publikováno v:
Optical Materials. 93:85-92
A series of D-π-A type organic dyes with bulky triphenylmethyl moiety containing 2,6-bis-(4-substituted)styryl-4H-pyran-4-ylidene donor (D) fragments and different electron acceptors (A) were synthesized and investigated, mostly for potential applic
Publikováno v:
Key Engineering Materials. 800:269-274
Various electrooptic and magnetooptic effects enable the electric and magnetic field control of the holographic information recording. They can become significant if the frequency of light irradiation is close enough to the absorption line of a mater
Autor:
Aivars Vembris, Kaspars Pudzs, Marcis Lielbardis, Armands Ruduss, Valdis Kokars, Kaspars Traskovskis, Raitis Grzibovskis
Publikováno v:
Journal of Physics and Chemistry of Solids. 127:178-185
In order to investigate the viability of a material design for bulk heterojunction (BHJ) organic solar cells, where hole transporting group is bound to the donor moiety, we report the synthesis and charge transport characteristics of 3-(diphenylamino
Autor:
Julija Pervenecka, Valdis Kokars, Patricija Paulsone, Deins Alksnis, Kristine Lazdovica, Elmars Zarins, Aivars Vembris
Publikováno v:
Key Engineering Materials. 800:275-279
A series of glassy 6-(tert-butyl)-4H-pyran-4-ylidene malononitrile (DCM) derivatives with covalently attached amorphous state promoting bulky 1,1,1-triphenylmethyl (trityl) moieties through several chemical design approaches have been synthesized and
Publikováno v:
Dyes and Pigments. 163:62-70
A series of 2-cyano-2-(4H-pyran-4-ylidene) acetate derivatives with triphenyl and 9H-carbazole moieties were synthesized and investigated, mostly for potential applications in organic solid state lasers. Synthesized compounds show remarkable amorphou