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Tuned Optical Reflection Characteristics of Chemically-Treated Ti Substrates

  • Yun, Ho-Gyeong (Convergence Components & Materials Research Laboratory, ETRI) ;
  • Kim, Myoung (Convergence Components & Materials Research Laboratory, ETRI) ;
  • You, In-Kyu (Convergence Components & Materials Research Laboratory, ETRI)
  • Received : 2012.05.11
  • Accepted : 2012.07.19
  • Published : 2012.12.31

Abstract

Titanium foils for use in photoelectrochemical devices are treated with a $HNO_3$-HF solution. After this treatment, the optical reflection characteristics of the Ti substrates are markedly increased in terms of not only reflectivity but also optimized wavelength. Furthermore, the "multiple beam interference" theory and optical analysis of surface morphologies clearly verify the origin of the optimized optical reflection properties.

Acknowledgement

Supported by : ETRI

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