Formation and characterization of infrared absorbing copper oxide surfaces

Date

2017-04-30

Author

Arslan, Burcu
Erdogan, Metehan
Karakaya, İshak

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Copper oxide formation has been investigated to combine the advantages of producing different size and shapes of coatings that possess good light absorbing properties. An aqueous blackening solution was investigated and optimum composition was found as 2.5 M NaOH and 0.225 M NaClO to form velvet copper oxide films. A two-step oxidation mechanism was proposed for the blackening process by carefully examining the experimental results. Formation of Cu2O was observed until the entire copper surface was covered at first. In the second step, Cu2O surface was further oxidized to CuO until the whole Cu2O surface was covered by CuO. Therefore, blackened copper surfaces consisted of Cu2O/CuO duplex oxides. Characterization of the coatings were performed in terms of microstructure, phase analysis, chemical state, infrared specular and total reflectivity by SEM, XRD, XPS, FUR and UV-vis spectrophotometry, respectively.

Subject Keywords

Cuprous oxide, Cupric oxide, Absorbing coating, Reflective coating, Chemical conversion

URI

https://hdl.handle.net/11511/32113

Journal

APPLIED SURFACE SCIENCE

DOI

https://doi.org/10.1016/j.apsusc.2017.01.011

Collections

Graduate School of Social Sciences, Article

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Citation Formats

B. Arslan, M. Erdogan, and İ. Karakaya, “Formation and characterization of infrared absorbing copper oxide surfaces,” APPLIED SURFACE SCIENCE, pp. 218–224, 2017, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32113.