Search results for "kvanttipiste"

Real-space quantum transport in two-dimensional nanostructures in magnetic fields

2013

Electronic structure of triangular, hexagonal and round graphene flakes

2009

Tetrahedral chalcopyrite quantum dots in solar-cell applications

2010

We have considered two different chalcopyrite material combinations suggested for intermediate-band solar cell (IBSC) sample fabrication in Helmholtz Zentrum, Berlin. We have obtained the maximum theoretical efficiency values of these two chalcopyrite IBSCs. The optimal sizes of the chalcopyrite quantum dots (QDs) in the corresponding QD-IBSC implementations have been calculated. Optical absorption spectrum of a single chalcopyrite QD has been obtained for both systems. The effect of the QD geometry, especially the effect of the roundness of the QD, was examined. We hope that these results will help in the quest towards more efficient and more affordable solar cells.

Kvanttipisteiden elektronien energiaspektrin tulkinta klassisten rotaatioiden ja värähtelyjen avulla

2006