Electrostatic Self-Assembly of Diamond Nanoparticles onto Al- and N-Polar Sputtered Aluminum Nitride Surfaces.
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.
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. taro.yoshikawa@iaf.fraunhofer.de.
Taro
T
Yoshikawa
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. markus.reusch@iaf-extern.fraunhofer.de.|Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany. markus.reusch@iaf-extern.fraunhofer.de.
Markus
M
Reusch
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. verena.zuerbig@iaf.fraunhofer.de.
Verena
V
Zuerbig
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. volker.cimalla@iaf.fraunhofer.de.
Volker
V
Cimalla
Atomic Energy and Alternative Energies Commission (CEA), Laboratory of Applied Research on Software-Intensive Technologies (LIST), Diamond Sensors Laboratory, F-91191 Gif-sur-Yvette, France. keehan.lee@cea.fr.
Kee-Han
KH
Lee
Atomic Energy and Alternative Energies Commission (CEA), Laboratory of Applied Research on Software-Intensive Technologies (LIST), Diamond Sensors Laboratory, F-91191 Gif-sur-Yvette, France. magdalena.kurzyp@cea.fr.
Magdalena
M
Kurzyp
Atomic Energy and Alternative Energies Commission (CEA), Laboratory of Applied Research on Software-Intensive Technologies (LIST), Diamond Sensors Laboratory, F-91191 Gif-sur-Yvette, France. jean-charles.arnault@cea.fr.
Jean-Charles
JC
Arnault
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. christoph.nebel@iaf.fraunhofer.de.
Christoph E
CE
Nebel
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. oliver.ambacher@iaf.fraunhofer.de.|Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110 Freiburg, Germany. oliver.ambacher@iaf.fraunhofer.de.
Oliver
O
Ambacher
Fraunhofer Institute for Applied Solid State Physics, Tullastraße 72, 79108 Freiburg, Germany. vadim.lebedev@iaf.fraunhofer.de.
Vadim
V
Lebedev
aluminum nitride; diamond nanoparticles; electrostatic self-assembly; hydrolysis; nanodiamond seeding; polarity; surface oxidation; zeta potential