TY - GEN
T1 - Spatially composition-graded alloy semiconductor nanowires and wavelength specific lateral-multijunction full-spectrum solar cells
AU - Ning, Cun-Zheng
AU - Pan, A. L.
AU - Liu, R. B.
PY - 2009
Y1 - 2009
N2 - We demonstrate chemical vapor deposition of single crystal Zn xCd1-xSySe1-y alloy nanowires with continuous spatial composition-grading (x and y from 0 to1) across a single wafer, resulting in a controlled spatial bandgap variation from ∼ 3.6 eV (ZnS) to ∼ 1.7eV (CdSe). To take advantage of this unprecedented material capability for photovoltaic applications, we analyzed several designs of lateral multijunction solar cells, where incoming solar light is spectrally dispersed, such that each wavelength band is incident onto a region of the wafer with the corresponding bandgap. Such designs have potential of realizing large numbers of junctions to allow the full potential of many junctions to be explored for high-efficiency dispersive concentration photovoltaics.
AB - We demonstrate chemical vapor deposition of single crystal Zn xCd1-xSySe1-y alloy nanowires with continuous spatial composition-grading (x and y from 0 to1) across a single wafer, resulting in a controlled spatial bandgap variation from ∼ 3.6 eV (ZnS) to ∼ 1.7eV (CdSe). To take advantage of this unprecedented material capability for photovoltaic applications, we analyzed several designs of lateral multijunction solar cells, where incoming solar light is spectrally dispersed, such that each wavelength band is incident onto a region of the wafer with the corresponding bandgap. Such designs have potential of realizing large numbers of junctions to allow the full potential of many junctions to be explored for high-efficiency dispersive concentration photovoltaics.
UR - http://www.scopus.com/inward/record.url?scp=77951613045&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951613045&partnerID=8YFLogxK
U2 - 10.1109/PVSC.2009.5411337
DO - 10.1109/PVSC.2009.5411337
M3 - Conference contribution
AN - SCOPUS:77951613045
SN - 9781424429509
T3 - Conference Record of the IEEE Photovoltaic Specialists Conference
SP - 1492
EP - 1495
BT - 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
T2 - 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Y2 - 7 June 2009 through 12 June 2009
ER -