Characterization of Black Chrome Films Prepared by Electroplating Technique

S. Jafari
Physics Department, University of Guilan, Iran

S. M Rozati
Physics Department, University of Guilan, Iran

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp110573999

Ingår i: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:43, s. 3999-4005

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Publicerad: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


The surface and optical properties of black chrome films prepared by two different electrochemical baths were characterized. The black chrome films have been deposited on bright nickel substrates by electroplating technique. The surface morphology and phase structure of the films were investigated by using scanning electron microscopy (SEM) and X-ray diffraction (XRD); respectively. The chemical composition of prepared films was determined by energy-dispersive x-ray analysis (EDS). The spectral reflectance was also measured in the UV-Vis-NIR and IR regions. From the SEM analysis; it was found that prepared films by the first chemical bath is denser with nano size grains and by the second chemical bath they become porous; with micro sized grains. The XRD results show that in both cases chrome is the main chemical component in the films. The films prepared by second chemical bath have better optical properties than the films prepared by first chemical bath.


Black chrome; Electroplating; Solar collector


[1] M. Aguilar; E. Barrera; M. Palomar-Pardave; L. Huerta; S. Muhl; Characterization of black and white chromium electrodeposition films: surface and optical properties; Journal of Non-Crystalline Solids 329; 2003; pp. 31-38. doi: 10.1016/j.jnoncrysol.2003.08.008.

[2] J. Quintana; P. J. Sebastian; The influence of various substrate treatments on morphology and selective absorber characteristics of electrochemical black chrome; Solar Energy Materials and Solar Cells 33; 1994; pp. 465-474. doi: 10.1016/0927-0248(94)90006-X.

[3] Z. Abdel Hamid; Electrodeposition of black chromium from environmentally electrolyte based on trivalent chromium salt; Surface & Coating Technology 203; 2009; pp. 3442-3449. doi: 10.1016/j.surfcoat.2009.05.022.

[4] M. R. Bayati; M. H. Shariat; K. Janghorban; Design and chemical composition and optimum working conditions for trivalent black chromium electroplating bath used for solar thermal collectors; Renewable Energy 30; 2005; pp. 2163-2178. doi: 10.1016/j.renene.2005.02.003.

[5] G. E. Mcdonald; Spectral reflectance properties of black chrome for use as a solar selective coating; Solar Energy 17; 1975; pp. 119-122. doi: 10.1016/0038-092X(75)90067-5.

[6] M. Daryabegy; A. R. Mahmoodpoor; Method of manufacturing absorbing layers on copper for solar applications (?); Renewable Energy Organization of Iran 2; 2006; pp. 35-39.

[7] H. Lou; Y. Huang; Electroplating; Encyclopedia of Chemical Processing; DOI: 10.1081; pp. 1-10.

[8] N. Vasudevan; V. K. William Grips and Indira Rajagopalan; The present status of black chromium plating; Surface Technology 14; 1981; pp. 119-132. doi: 10.1016/0376-4583(81)90073-X.

[9] P. M. Driver; An electrochemical approach to the characterization of black chrome selective surfaces; Solar Energy Materials 14; 1981; pp. 179-202. doi: 10.1016/0165-1633(81)90041-1.

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