Light-Emitting Triangles for Applications in Optical Technology

Error message

User warning: The following module is missing from the file system: form_builder. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1156 of /var/www/mri.psu.edu/includes/bootstrap.inc).
Credits/Names: 

DMR-0820404: H. R. Gutierrez, N. Perea-Lopez, A.-L. Elias, A. Berkdemir, B. Wang, Ruitao Lv, F. Lopez-Urias, V. H. Crespi, H. Terrones and M. Terrones. Extraordinary Room-Temperature Photoluminescence in Triangular WS2 Monolayers. Nanoletters, dx.doi.org/10.1021/nl3026357 (2013)

For the first time, MRSEC researchers have created single layers of a naturally occurring rare mineral called tungstenite or WS2. The resulting sheets of stacked sulfur and tungsten atoms forms honeycomb patterns within triangular islands that have unusual light-emitting (photoluminescent) properties. These triangular structures could have many potential applications in optical light detection, light-emitting diodes, and lasers. MRSEC researchers plan to use this chemical-vapor-deposition technology to grow innovative monolayers from other layered materials, such as molybdenum diselenide (MoSe2), niobium diselenide (NbS2), tungsten diselenide (WSe2), and others.

Download PDF Version: 
Year of Research Highlight: 
2012
IRG: 
Seed Projects