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Electrostatic self-assembly of diamond nanoparticles onto Al- and N-Polar sputtered aluminum nitride surfaces

 
: Yoshikawa, Taro; Reusch, Markus; Zürbig, Verena; Cimalla, Volker; Lee, K.-H.; Kurzyp, M.; Arnault, J.-C.; Nebel, Christoph E.; Ambacher, Oliver; Lebedev, Vadim

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Volltext urn:nbn:de:0011-n-4235728 (1.9 MByte PDF)
MD5 Fingerprint: 8940a80f15f1c60ac9101f11c02d96a5
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Erstellt am: 15.12.2017


Nanomaterials 6 (2016), Nr.11, Art. 217, 9 S.
ISSN: 2079-4991
Englisch
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IAF ()
electrostatic self-assembly; nanodiamond seeding; diamond nanoparticle; aluminum nitride; polarity; surface oxidation; hydrolysis; Zeta potential

Abstract
Electrostatic self-assembly of diamond nanoparticles (DNPs) onto substrate surfaces (so-called nanodiamond seeding) is a notable technique, enabling chemical vapor deposition (CVD) of nanocrystalline diamond thin films on non-diamond substrates. In this study, we examine this technique onto differently polarized (either Al- or N-polar) c-axis oriented sputtered aluminum nitride (AlN) film surfaces. This investigation shows that Al-polar films, as compared to N-polar ones, obtain DNPs with higher density and more homogeneously on their surfaces. The origin of these differences in density and homogeneity is discussed based on the hydrolysis behavior of AlN surfaces in aqueous suspensions.

: http://publica.fraunhofer.de/dokumente/N-423572.html