Impact of Laser Wavelength on the Optical and Electronic Properties of Black Diamond

Marco Girolami, Alessandro Bellucci, Matteo Mastellone, Stefano Orlando, Veronica Valentini, Rosa M. Montereali, Maria A. Vincenti, Riccardo Polini, Daniele M. Trucchi

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Abstract

Black diamond, obtained by femtosecond laser treatment of natively transparent diamond, is a promising material for solar applications. The enhancement of the interaction between the active material and the solar spectrum is obtained by a controlled texturing of the diamond surface at the nanoscale, the impact of which on the optical and electronic properties of the bulk material is strongly influenced by the laser parameters. In this work, the properties of black diamond samples obtained by using two different laser wavelengths (400 and 800 nm) are compared, showing that texturing periodicity (80 and 170 nm, respectively) is strictly related to the laser wavelength used. Conversely, a unique optimal accumulated absorbed laser fluence (2.10 kJ cm−2) demonstrated to return the best results in terms of responsivity in the solar spectrum, regardless of the wavelength used for laser treatment.
Original languageEnglish
Article number1700250
Pages (from-to)-
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume214
Issue number11
DOIs
Publication statusPublished - 1 Nov 2017
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

Girolami, M., Bellucci, A., Mastellone, M., Orlando, S., Valentini, V., Montereali, R. M., Vincenti, M. A., Polini, R., & Trucchi, D. M. (2017). Impact of Laser Wavelength on the Optical and Electronic Properties of Black Diamond. Physica Status Solidi (A) Applications and Materials Science, 214(11), -. [1700250]. https://doi.org/10.1002/pssa.201700250