TITLE

Absorption characteristics of a quantum dot array induced intermediate band: Implications for solar cell design

AUTHOR(S)
Tomic, Stanko; Jones, Tim S.; Harrison, Nicholas M.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p263105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a theoretical study of the electronic and absorption properties of the intermediate band (IB) formed by a three dimensional structure of InAs/GaAs quantum dots (QDs) arranged in a periodic array. Analysis of the electronic and absorption structures suggests that the most promising design for an IB solar cell material, which will exhibit its own quasi-Fermi level, is to employ small QDs (~6–12 nm QD lateral size). The use of larger QDs leads to extension of the absorption spectra into a longer wavelength region but does not provide a separate IB in the forbidden energy gap.
ACCESSION #
36054106

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics