Picture of wind turbine against blue sky

Open Access research with a real impact...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Indirect band gap of light-emitting BC2N

Chen, Y and Barnard, J C and Palmer, R E and Watanabe, M O and Sasaki, T and Chen, Yu (1999) Indirect band gap of light-emitting BC2N. Physical Review Letters, 83 (12). pp. 2406-2408. ISSN 0031-9007

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We have employed high resolution electron energy loss spectroscopy (HREELS) (in ultrahigh vacuum) to investigate the band gap of the novel semiconductor BC2N by measuring electronic excitations from the valence band to the conduction band. Angle-resolved HREELS allows the observation of transitions which are not vertical in k space, and the measurements indicate an indirect band structure, even though this material emits visible photoluminescence. The results also reconcile scanning tunneling microscopy and photoluminescence measurements for the system.