Annealing time effects on the surface morphology of C–Pd films prepared on silicon covered with SiO2

• Autorzy: Kozlowski M. , Radomska J. , Wronka H. , Czerwosz E. , Firek P. , Sobczak K. , Dluzewski P.
• Języki publikacji: EN

Abstrakty

EN

Morphology changes of C–Pd films prepared in physical vapor deposition (PVD) process and next annealed in a temperature of 650 °C during different time were studied. These studies were performed with electron microscopy methods (scanning SEM and transmission TEM). It was found that not annealed films are flat and they are composed of grains with composite character and size of 100–200 nm. Pd nanocrystallite of a diameter of a few nanometers in some carbon matrix was placed in these grains. For annealed films, a formation of palladium nanograins with different sizes and shapes as well as a porous carbon matrix were observed. High resolution TEM investigation was used to determine a structure of all these grains. An increase in duration time of annealing process led to diminishing of the porosity of carbon matrix and a number of Pd grains situated on the film surface. It was also stated that covering of Si with SiO2 layer prevents formation of palladium silicide.

Słowa kluczowe

EN

Pd; carbon; film; SEM; TEM

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2013
• Tom: Vol. 43, nr 1
• Strony: 81--89
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Kozlowski M.

• Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland

autor

Radomska J.

• Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland

autor

Wronka H.

• Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland

autor

Czerwosz E.

• Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland

autor

Firek P.

• Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warszawa, Poland

autor

Sobczak K.

• Institute of Physics PAS, al. Lotników 32/46, 02-668 Warszawa, Poland

autor

Dluzewski P.

• Institute of Physics PAS, al. Lotników 32/46, 02-668 Warszawa, Poland

Bibliografia

• [1] ARUNA I., MEHTA B.R., MALHOTRA L.K., Faster H recovery in Pd nanoparticle layer based Gd switchable mirrors: Size-induced geometric and electronic effects, Applied Physics Letters 87(10), 2005, article 103101.
• [2] KUMAR P., MALHOTRA L.K., Effect of current density on thermodynamic properties of nanocrystalline palladium capped samarium hydride thin film switchable mirrors, Journal of Nanomaterials 2007, 2007, article 52083.
• [3] LEWIS F.A., The Palladium-Hydrogen System, Academic Press, London, 2008, p. 1967.
• [4] SANTHOSH P., MANESH K.M., UTHAYAKUMAR S., KOMATHI S., GOPALAN A.I., LEE K.-P., Fabrication of enzymatic glucose biosensor based on palladium nanoparticles dispersed onto poly(3,4-ethylenedioxythiophene) nanofibers, Bioelectrochemistry 75(), 2009, pp. 61–66.
• [5] ATTA N.F., EL-KADY M.F., GALAL A., Palladium nanoclusters-coated polyfuran as a novel sensor for catecholamine neurotransmitters and paracetamol, Sensors and Actuators B 141(2), 2009, pp. 566–574.
• [6] NYLUND A., Some Notes on the palladium-silicon system, Acta Chemica Scandinavica 20(9), 1966, pp. 2381–2386.
• [7] PFISTERER H., SCHUBERT K., Neue Phasen Vom Mnp(B31)-Typ, Zeitschrift für Metallkunde 41, 1950, p. 358.
• [8] WYSOCKI J.A., DUWEZ P.E., Equilibrium suicides of palladium, Metallurgical and Materials Transactions A 12(8), 1981, pp. 1455–1460.
• [9] MACIEJEWSKI M., BAIKER A., Incorporation and reactivity of carbon in palladium, Pure and Applied Chemistry 67(11), 1995, pp. 1879–1884.
• [10] YAMAMOTO T., ADACHI M., KAWABATA K., KIMURA K., HAHN H.W., Palladium carbide nanoparticles by gas flow reaction synthesis, Applied Physics Letters 63(22), 1993, pp. 3020–3022.
• [11] ZIEMECKI S.B., JONES G.A., SWARTZFAGER D.G., HARLOW R.L., FABER J., Formation of interstitial palladium–carbon phase by interaction of ethylene, acetylene, and carbon monoxide with palladium, Journal of the American Chemical Society 107(15), 1985, pp. 4547–4548.
• [12] STACHURSKI J., FRACKIEWICZ A., A new phase in the Pd–C system formed during the catalytic hydrogenation of acetylene, Journal of the Less Common Metals 108(2), 1985, pp. 249–256.
• [13] HOLSTEIN W.L., MOORHEAD R.D., POPPA H., BONDART M., [In] Chemistry and Physics of Carbon, Walker P.L. [Ed.],Vol. 18, Marcel Dekker, New York, 1982, p. 139.
• [14] KASZKUR Z., STACHURSKI J., PIELASZEK J., X-ray diffraction study of the palladium–carbon system, Journal of Physics and Chemistry of Solids 47(8), 1986, pp. 795–798.