TY - GEN
T1 - Graded band gap CIGS solar cells considering the valence band widening
AU - Gorji, Nima E.
AU - Reggiani, Ugo
AU - Sandrolini, Leonardo
PY - 2012
Y1 - 2012
N2 - CIGS thin film solar cells with Valence Band (VB) and Conduction Band (CB) grading in the space charge region and back surface region of the absorber layer are proposed in this paper. In all the examined profiles the VB widening effects on the performance parameters by promoting the carrier transformation, hole passivation and carrier collection in the cell are considered. On the basis of the results, an optimal graded band gap structure is proposed and considered with a design closer to the reality where the VB offset is created during the band gap grading processes.
AB - CIGS thin film solar cells with Valence Band (VB) and Conduction Band (CB) grading in the space charge region and back surface region of the absorber layer are proposed in this paper. In all the examined profiles the VB widening effects on the performance parameters by promoting the carrier transformation, hole passivation and carrier collection in the cell are considered. On the basis of the results, an optimal graded band gap structure is proposed and considered with a design closer to the reality where the VB offset is created during the band gap grading processes.
KW - band gap grading
KW - charge transfer
KW - CIGS solar cells
KW - valence band widening
UR - https://www.scopus.com/pages/publications/84869447261
U2 - 10.1109/PVSC.2012.6317749
DO - 10.1109/PVSC.2012.6317749
M3 - Conference contribution
AN - SCOPUS:84869447261
SN - 9781467300643
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 906
EP - 908
BT - Program - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
T2 - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Y2 - 3 June 2012 through 8 June 2012
ER -