Title :
On the origin of efficient photoluminescence in silicon nanocrystals
Author :
Hannah, Daniel C. ; Jihua Yang ; Podsiadlo, Paul ; Chan, M.K.Y. ; Demortiere, Arnaud ; Gosztola, David J. ; Prakapenka, Vitali B. ; Schatz, George C. ; Kortshagen, Uwe ; Schaller, Richard D.
Author_Institution :
Dept. of Chem., Northwestern Univ., Evanston, IL, USA
Abstract :
Discrepancies exists regarding the nature of photoluminescence from quantum-confined silicon nanocrystals. Here, using hydrostatic pressure, x-ray diffraction, and optical spectroscopy, we provide fundamental insights regarding whether emission arises from nanocrystal surface or core states.
Keywords :
X-ray diffraction; elemental semiconductors; nanophotonics; nanostructured materials; photoluminescence; silicon; Si; X-ray diffraction; core states; efficient photoluminescence; hydrostatic pressure; nanocrystal surface; optical spectroscopy; quantum-confined silicon nanocrystals; Nanocrystals; Optical diffraction; Photoluminescence; Silicon; Surface reconstruction; Surface treatment;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
