Pyrolytic carbon coated black silicon

Ali Shah, Petri Stenberg, Lasse Karvonen, Rizwan Ali, Seppo Honkanen, Harri Lipsanen, N. Peyghambarian, Markku Kuittinen, Yuri Svirko, Tommi Kaplas*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
127 Downloads (Pure)

Abstract

Carbon is the most well-known black material in the history of man. Throughout the centuries, carbon has been used as a black material for paintings, camouflage, and optics. Although, the techniques to make other black surfaces have evolved and become more sophisticated with time, carbon still remains one of the best black materials. Another well-known black surface is black silicon, reflecting less than 0.5% of incident light in visible spectral range but becomes a highly reflecting surface in wavelengths above 1000 nm. On the other hand, carbon absorbs at those and longer wavelengths. Thus, it is possible to combine black silicon with carbon to create an artificial material with very low reflectivity over a wide spectral range. Here we report our results on coating conformally black silicon substrate with amorphous pyrolytic carbon. We present a superior black surface with reflectance of light less than 0.5% in the spectral range of 350 nm to 2000 nm.

Original languageEnglish
Article number25922
Number of pages6
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 13 May 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • CHEMICAL-VAPOR-DEPOSITION
  • ABSORBER
  • GRAPHENE
  • FILMS
  • SPECTROSCOPY
  • PYROCARBON
  • CHEMISTRY
  • GRAPHITE
  • KINETICS

Equipment

OtaNano

Anna Rissanen (Manager)

Aalto University

Facility/equipment: Facility

  • Cite this

    Shah, A., Stenberg, P., Karvonen, L., Ali, R., Honkanen, S., Lipsanen, H., Peyghambarian, N., Kuittinen, M., Svirko, Y., & Kaplas, T. (2016). Pyrolytic carbon coated black silicon. Scientific Reports, 6, [25922]. https://doi.org/10.1038/srep25922