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Title: Enhancement of surface area and wettability properties of boron doped diamond by femtosecond laser-induced periodic surface structuring

Journal Article · · Optical Materials Express
DOI:https://doi.org/10.1364/OME.7.003389· OSTI ID:1394085
 [1];  [2];  [3];  [4];  [2];  [2];  [2]
  1. CEIT-IK4 & Tecnum (Univ. of Navarra), San Sebastian (Spain); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. CEIT-IK4 & Tecnum (Univ. of Navarra), San Sebastian (Spain)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Diamond Materials GmbH, Freiburg (Germany)

We demonstrate the formation of laser-induced periodic surface structures (LIPSS) in boron-doped diamond (BDD) by irradiation with femtosecond near-IR laser pulses. The results show that the obtained LIPSS are perpendicular to the laser polarization, and the ripple periodicity is on the order of half of the irradiation wavelength. The surface structures and their electrochemical properties were characterized using Raman micro-spectroscopy, in combination with scanning electron and atomic force microscopies. The textured BDD surface showed a dense and large surface area with no change in its structural characteristics. The effective surface area of the textured BDD electrode was approximately 50% larger than that of a planar substrate, while wetting tests showed that the irradiated area becomes highly hydrophilic. Lastly, our results indicate that LIPSS texturing of BDD is a straightforward and simple technique for enhancing the surface area and wettability properties of the BDD electrodes, which could enable higher current efficiency and lower energy consumption in the electrochemical oxidation of toxic organics.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1394085
Journal Information:
Optical Materials Express, Vol. 7, Issue 9; ISSN 2159-3930
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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Cited By (1)

Laser Surface Structuring of Cemented Carbide for improving the Strength of Induction Brazed Joints journal June 2019