liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Diamond graphitization by laser-writing for all-carbon detector applications
University of Salento, Italy; INFN National Institute Nucl Phys, Italy.
University of Salento, Italy; INFN National Institute Nucl Phys, Italy.
CNR IMM Institute Microelect and Microsyst, Italy.
Politecn Milan, Italy.
Show others and affiliations
2017 (English)In: Diamond and related materials, ISSN 0925-9635, E-ISSN 1879-0062, Vol. 75, 25-33 p.Article in journal (Refereed) Published
Abstract [en]

The surface of a detector grade CVD polycrystalline diamond sample (5 x 5 x 0.05 mm(3)) was irradiated by an ArF excimer laser (lambda = 193 nm, T = 20 ns) to produce graphitic conductive layers. In particular, two sets of four parallel graphitic strip-like contacts, with 1 mm pitch, were created along the whole sample on the top and on the rear surfaces of the sample respectively. The two series of stripes lie normally to each other. Such a grid allows to obtain a segmented all-carbon device capable of giving bi-dimensional information on particle detection processes in nuclear applications. Afterwards, an extensive characterization of the samples was performed: SEM and micro-Raman investigations to study the morphological and structural evolution of the irradiated areas, EDS measurements to individuate any absorption phenomena from environment associated to laser treatment, and nanoindentation mapping to understand how the hard-soft transformation occurred depending on the locally transferred energy. Finally, current-voltage analyses were carried out checking the ohmic behavior of the diamond-graphite contact. By comparing the results of the different characterization analyses, a strong periodidty of the modified surface properties was found, confirming the reliability and reproducibility of the laser-induced graphitization process. The results demonstrate that the laser-writing technique is a good and fast solution to produce graphitic contacts on diamond surface and therefore represents a promising way to fabricate segmented all-carbon devices. (C) 2016 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA , 2017. Vol. 75, 25-33 p.
Keyword [en]
Diamond film; Graphitization; Surface characterization; Ohmic contacts; All-carbon detectors
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-139634DOI: 10.1016/j.diamond.2016.12.019ISI: 000403133800006OAI: oai:DiVA.org:liu-139634DiVA: diva2:1133710
Conference
27th International Conference on Diamond and Carbon Materials (DCM)
Note

Funding Agencies|Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]

Available from: 2017-08-16 Created: 2017-08-16 Last updated: 2017-08-16

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Broitman, Esteban
By organisation
Department of Physics, Chemistry and BiologyFaculty of Science & Engineering
In the same journal
Diamond and related materials
Materials Chemistry

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 62 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf