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Coatings 2017, 7(11), 185; https://doi.org/10.3390/coatings7110185

Surface Texturing of CVD Diamond Assisted by Ultrashort Laser Pulses

1
DiaTHEMA Lab, Istituto di Struttura della Materia (ISM-CNR), Montelibretti Section, 00015 Monterotondo Scalo (RM), Italy
2
Istituto di Struttura della Materia (ISM-CNR), Tito Scalo Section, Zona Industriale, 85050 Tito Scalo (PZ), Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Ivan Buijnsters
Received: 1 August 2017 / Revised: 10 October 2017 / Accepted: 28 October 2017 / Published: 3 November 2017
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Abstract

Diamond is a wide bandgap semiconductor with excellent physical properties which allow it to operate under extreme conditions. However, the technological use of diamond was mostly conceived for the fabrication of ultraviolet, ionizing radiation and nuclear detectors, of electron emitters, and of power electronic devices. The use of nanosecond pulse excimer lasers enabled the microstructuring of diamond surfaces, and refined techniques such as controlled ablation through graphitization and etching by two-photon surface excitation are being exploited for the nanostructuring of diamond. On the other hand, ultrashort pulse lasers paved the way for a more accurate diamond microstructuring, due to reduced thermal effects, as well as an effective surface nanostructuring, based on the formation of periodic structures at the nanoscale. It resulted in drastic modifications of the optical and electronic properties of diamond, of which “black diamond” films are an example for future high-temperature solar cells as well as for advanced optoelectronic platforms. Although experiments on diamond nanostructuring started almost 20 years ago, real applications are only today under implementation. View Full-Text
Keywords: diamond; laser; ultrashort pulse; surface texturing; black diamond; solar radiation capturing; solar energy conversion diamond; laser; ultrashort pulse; surface texturing; black diamond; solar radiation capturing; solar energy conversion
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Trucchi, D.M.; Bellucci, A.; Girolami, M.; Mastellone, M.; Orlando, S. Surface Texturing of CVD Diamond Assisted by Ultrashort Laser Pulses. Coatings 2017, 7, 185.

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