Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: spin coating method

Sortuj według:

Ogranicz wyniki do:

CLSM and UV-VIS researches on polyoxadiazoles thin films

Weszka J., Szindler M., Chwastek-Ogierman M., Bruma M., Jarka P.

Archives of Materials Science and Engineering

2012

Vol. 55, nr 2

53-61

Purpose: The purpose of this paper was to analyse the surface morphology and optical properties of polyoxadiazoles thin films. Design/methodology/approach: A few different conducting polymers were dissolved in N-methyl-2-pyrrolid(in)one. Then the solutions were deposited on a glass substrate by spin coating method with a different spin rate. Changes in surface topography and optical properties were observed. A confocal laser scanning microscope CLSM Zeiss LSM 5 Exciter has been used. Photos have been taken from area of 120 x 120 microns. Findings: The analysis of images and spectra has confirmed that the quality of thin films depends upon the used polymers. It was also observed that the parameters of the spin coating method have significant effect on the morphology and the optical properties. The spin rate has got a strong impact on them. Research limitations/implications: The morphology and optical properties of polyoxadiazoles thin films has been described. This paper include description how the spin rate influence on the polymer thin films. In order to use a polymer thin film in photovoltaics or optoelectronics it must have a high internal transmission density. Further research of polymer thin films are recommended. Practical implications: The spin coating method allows to deposit a uniform thin films. It is important to know how the spin rate influence on the thin films properties. It is also important to find a new use for this group of material engineering in photovoltaic or optoelectronics devices. Originality/value: The good properties of thin films make them suitable for various applications. The value of this paper is defining the optimal parameters of spin-coating technology for polyoxadiazoles thin films. The results allow the choosing optimal parameters of the deposition process. Spin coating is a very good method to obtain thin films which are obligated to have the same thickness over the whole surface.

Comparing of optical properties and morphology of polyoxadiazoles with CF3 groups

Hajduk B., Jarka P., Weszka J., Bruma M., Jurusik J., Chwastek M., Mańskowski D.

Journal of Achievements in Materials and Manufacturing Engineering

2010

Vol. 40, nr 1

7-14

Purpose: The aim of this paper is to compare optical properties of 4-(1,1,1,3,3,3-hexafluoro-2(-4(-3(4-(5-(4-m-tolyoxy)phenyl)-1,3,4-oxadiazol-2-yl)phenoxy)phenylcarbomyl)phenyl)propan2-yl)-N-methylbenzamide (Oxad 6F-D) and 4-(1,1,1,3,3,3-hexafluoro-2(-4-(4-(4-(5-(4-(p-tolyoxy)phenyl)-1,3,4-oxadiazol-2-yl)phenoxycarbaomyl)phenyl)propan-2-yl)-N-methylbenzamide (Oxad 6F-E). Design/methodology/approach: The Oxad 6F polymer thin films were deposited onto glass and KBr substrates by spin–coating method under different technological conditions. Findings: The spinning rate V and solution concentration C influenced optical properties of Oxad 6F-D and Oxad 6F-E thin films. The goal of this paper is to show differences in properties of these polymers. Research limitations/implications: The electrical and luminescent properties of Oxad 6F polymers will be carried out in the nearest time. The different properties of these polymers are caused by benzene position in the polymer chain, two aromatic rings are in meta-position in Oxad 6F-D and all benzene rings are in para-positions in Oxad 6F-E. Practical implications: Thin films of Oxad 6F-D and Oxad 6F-E are good potential material for applications in polymer optoelectronic devices. Originality/value: The aim of this paper is to describe the optical properties of Oxad 6F polymers prepared under different technological conditions.