Nanotextured CuO: sensing and light harvesting platform

A. Balčytis; Gediminas Seniutinas; Jurga Juodkazyte; B. C. C. Cowie; F. Lapierre; S. Juodkazis

doi:10.1117/12.2082601

13 March 2015 Nanotextured CuO: sensing and light harvesting platform

A. Balčytis, Gediminas Seniutinas, Jurga Juodkazyte, B. C. C. Cowie, F. Lapierre, S. Juodkazis

Proceedings Volume 9374, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VIII; 93740K (2015) https://doi.org/10.1117/12.2082601
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Rapid and cost effective fabrication of nano-textured surfaces of CuO and Cu₂O by chemical bath process was used to fabricated large surface areas with cross sections in centimeters. Through chemical etching and oxidation induced nano-texturation Cu foils are rendered black and their surface area is increased by two orders of magnitude. Magnetronic Au sputtering was used to coat the nano-textured Cu_xO features with nano-granular metal films which were found to be conformal for the range of 5-50 nm layer thicknesses. The Au coated substrates of Cu_xO were tested for surface enhanced Raman scattering (SERS) performance and showed one of the best sensitivity enhancements when compared with other nano-textured surfaces. Application potential of the black-Cu₂O for SERS sensing and for solar cell applications is discussed.

Citation Download Citation

A. Balčytis, Gediminas Seniutinas, Jurga Juodkazyte, B. C. C. Cowie, F. Lapierre, and S. Juodkazis "Nanotextured CuO: sensing and light harvesting platform", Proc. SPIE 9374, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VIII, 93740K (13 March 2015); https://doi.org/10.1117/12.2082601

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