Arash Nikniazi - Photocurrent and Surface Recombination Mechanisms in the InxGa1-xN\GaN Different-sized Quantum Dot Solar Cells

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      Publication Details (including relevant citation   information):

      Turkish Journal of Physics, Volume 34, Issue 2

      DOI:10.3906/fiz-1002-19

      Published   at 7 November, 2010

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      Abstract:

      We present a p-i-n structured solar cell with stacked layers of   In xGa1-x N Quantum Dots (QDs) with different indium composition.   The photocurrent and surface recombination processes are   investigated in the i-region. We have shown that the QDs in the   i-region can play the role of both generation or recombination   centers. The photocurrent has been calculated by self-consistent   method to solve continuity equation of charge carriers in the   layers of the i-region. By changing the Indium composition in Inx   Ga1-x N QDs, the band gap of QDs varies and therefore provides a   considerable overlapping with solar spectrum. Proposed SC with   different-sized QDs and different Indium composition leads to   absorption of a desirable wavelength range of solar spectrum and   therefore a "rainbow" solar cell can be designed.

      Address (URL): http://mistug.tubitak.gov.tr/bdyim/toc.php?dergi=fiz&yilsayi=2010/2