Visualitza per paraule clau "Excitons"

Ara mostrant els elements 1-3 d 3

    • openAccess   Dominant channels of exciton spin relaxation in photoexcited self-assembled (In,Ga)As quantum dots 

      Liao, Yu-Huai; Climente, Juan I.; Cheng, Shun-Jen American Physical Society (2011-04-22)
      We present a comprehensive theoretical investigation of spin relaxation processes of excitons in photoexcited self-assembled quantum dots. The exciton spin relaxations are considered between dark- and bright-exciton states ...

    • closedAccess   Excitons, Biexcitons, and Trions in CdSe Nanorods 

      Rajadell Viciano, Fernando; Climente, Juan I.; Planelles, Josep; Bertoni, Andrea American Chemical Society (2009)
      We calculate the recombination energies and probabilities of neutral excitons (X), singly charged excitons (X±), and biexcitons (XX) in CdSe quantum dots of variable length. For spherical dots the relative position of the ...

    • openAccess   Piezoelectric Control of the Exciton Wave Function in Colloidal CdSe/CdS Nanocrystals 

      Segarra, Carlos; Climente, Juan I.; Polovitsyn, Anatolii; Rajadell Viciano, Fernando; Moreels, Iwan; Planelles, Josep American Chemical Society (2016-05-25)
      Using multiband k·p calculations, we show that strain-engineered piezoelectricity is a powerful tool to modulate the electron−hole spatial separation in a wide class of wurtzite CdSe/CdS nanocrystals. The inherent ...