Exciton recycling in graded gap layer-by-layer semiconductor nanocrystal structures

Exciton recycling in graded gap layer-by-layer semiconductor nanocrystal structures

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.

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Bibliographische Detailangaben
Hauptverfasser: Franzl, T., Klar, T.A., Schietinger, S., Rogach, A.L., Feldmann, J.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Absorption
Assembly
Energy exchange
Excitons
Luminescence
Nanocrystals
Optical materials
Photonic band gap
Physics
Recycling
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Beschreibung
Zusammenfassung: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.
DOI:10.1109/CLEO.2005.202396