Surface Characterization of Ion Implanted 4H-SiC Epitaxial Layers with Ion Energy and Concentration Variations

Autor: Anton J. Bauer, Tobias Erlbacher, Seongjun Kim, Jonas Buettner, Nam-Suk Lee, Min Who Lim, Sang Mo Koo, Hoon Kyu Shin, Hong-Ki Kim
Rok vydání: 2019
Předmět:
Zdroj: Materials Science Forum. 963:429-432
ISSN: 1662-9752
Popis: In this study, Al and N implantation effect on surface properties of 4H-SiC epitaxial layers were investigated before annealing process. AFM results indicated that all implanted samples indicated relatively low RMS roughness values. From UPS and XPS analysis, work function and Si-C binding energy of implanted samples were increased compared to the reference 4H-SiC sample. Those variations may be caused by lattice disorder and amorphization. In addition, TEM image showed damaged area in 4H-SiC epitaxial layer.
Databáze: OpenAIRE