Title :
Exciton recycling in graded gap layer-by-layer semiconductor nanocrystal structures
Author :
Franzl, Thomas ; Klar, Thomas A. ; Schietinger, Stefan ; Rogach, Andrey L. ; Feldmann, Jochen
Author_Institution :
Phys. Dept., Ludwig-Maximilians-Univ., Munich, Germany
Abstract :
A funnel like band gap profile is realized in a layer-by-layer assembled structure of CdTe nanocrystals. Recycling of trapped excitons leads to efficient energy transfer along the band gap gradient.
Keywords :
II-VI semiconductors; cadmium compounds; excitons; nanostructured materials; optical materials; CdTe; CdTe nanocrystals; energy transfer; exciton; graded gap; layer-by-layer assembled structure; semiconductor nanocrystal; Absorption; Assembly; Energy exchange; Excitons; Luminescence; Nanocrystals; Optical materials; Photonic band gap; Physics; Recycling;
Conference_Titel :
Lasers and Electro-Optics, 2005. (CLEO). Conference on
Print_ISBN :
1-55752-795-4
DOI :
10.1109/CLEO.2005.202396
