Title of article
Charged excitons in individual quantum dots: effects of vertical electric fields and optical pump power
Author/Authors
B Urbaszek، نويسنده , , E.J McGhee، نويسنده , , Wendy JM Smith، نويسنده , , R.J Warburton، نويسنده , , K Karrai، نويسنده , , B.D Gerardot، نويسنده , , J.M Garcia، نويسنده , , P.M Petroff، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2003
Pages
2
From page
35
To page
36
Abstract
We investigate the influence of optical pump power on a series of charging events of individual quantum dots embedded in a field effect structure. Increasing the optical pump powers moves all charging events towards more negative voltages and charged biexciton states in addition to single exciton states are observed. The linear shift in voltage with pump power is explained by the accumulation of photogenerated holes within the structure.
Keywords
Electric field , Excitons , Quantum dots
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2003
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1044867
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