Investigation of deep electronic levels in n‐type and p‐type 3C‐SiC using photoluminescence

Journal article
(Original article)

Publication Details

Author(s): Wilhelm M, Syväjärvi M, Wellmann P
Journal: Advanced Materials Proceedings
Publication year: 2017
Volume: 2
Journal issue: 12
Pages range: 769-773
ISSN: 2002-4428
Language: English


Among the various SiC polytypes, cubic 3C‐SiC is much more difficult to grow in high crystalline quality than the commercially introduced hexagonal 6H‐SiC and 4H‐SiC counterparts. Besides some benefits of 3C‐SiC for transistor applications related to a greater electron mobility and a lower metal‐oxide‐semiconductor interface trap density compared to 4H‐SiC, new potential optoelectronic applications have been introduced very recently. Boron doped 3C‐SiC may act as an ideal candidate for an intermediate band (IB) solar cell material. Aluminum doped p‐type 3C‐SiC could lead to the development of efficient optoelectrochemical water splitting cells. Finally, 3C‐SiC with its various intrinsic point defects has been considered as a suitable candidate for future spintronic‐applications. All these applications will critically depend on further understanding defect behaviour on atomic level. In our study we investigated free standing n‐type and p‐type 3C‐SiC material grown in our lab. Temperature dependent photoluminescence measurements revealed the presence of carbon vacancy related VC and VC-CSi defect transitions in the p‐type materials but not in the n‐type materials. This observation present in as grown 3C-SiC is believed to have significant impact on the optoelectronic applications.

FAU Authors / FAU Editors

Wellmann, Peter Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)
Wilhelm, Martin
Professur für Werkstoffwissenschaften (Werkstoffe der Elektrotechnik)

External institutions with authors

Linköping University

How to cite

Wilhelm, M., Syväjärvi, M., & Wellmann, P. (2017). Investigation of deep electronic levels in n‐type and p‐type 3C‐SiC using photoluminescence. Advanced Materials Proceedings, 2(12), 769-773.

Wilhelm, Martin, Mikael Syväjärvi, and Peter Wellmann. "Investigation of deep electronic levels in n‐type and p‐type 3C‐SiC using photoluminescence." Advanced Materials Proceedings 2.12 (2017): 769-773.


Last updated on 2018-17-09 at 10:10