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Thermal functionalization of GaN surfaces with 1-alkenes

: Schwarz, S.U.; Cimalla, V.; Eichapfel, G.; Himmerlich, M.; Krischok, S.; Ambacher, O.


Langmuir. The ACS journal of surfaces and colloids 29 (2013), No.21, pp.6296-6301
ISSN: 0743-7463
ISSN: 1520-5827
Journal Article
Fraunhofer IAF ()

A thermally induced functionalization process for gallium nitride surfaces with 1-alkenes is introduced. The resulting functionalization layers are characterized with atomic force microscopy and X-ray photoelectron spectroscopy and compared to reference samples without and with a photochemically generated functionalization layer. The resulting layers show very promising characteristics as functionalization for GaN based biosensors. On the basis of the experimental results, important characteristics of the functionalization layers are estimated and a possible chemical reaction scheme is proposed.