TY - GEN
T1 - Monolithically grown InxGa1-xAs nanowire on silicon tandem solar cells with high efficiency
AU - Shin, Jae Cheol
AU - Kim, Kyou Hyun
AU - Hu, Hefei
AU - Yu, Ki Jun
AU - Rogers, John A.
AU - Zuo, Jian Min
AU - Li, Xiuling
PY - 2011
Y1 - 2011
N2 - Heteroepitaxial integration of III-V and Si has been researched for many years since the Si is the prevalent platform and III-V can be used for light emitting source (i.e., direct bandgap) [1]. Although vertical InAs nanowires (NWs) growth on Si substrate (11.6% lattice mismatch) without catalysts and patterning has been demonstrated by several groups, [2, 3], direct heteroexpitaxial growth of ternary InxGa1-xAs nanowires hasn't been systematically studied yet, in spite of its important spectral coverage in the near infrared range. In this paper, we report the one-dimensional heteroepitaxial growth of dislocation free InxGa 1-xAs nanowires on silicon (111) substrate in the entire composition range and demonstrate monolithically grown axial p-n junction tandem solar cells consisting of InxGa1-xAs NWs on Si with an efficiency that well exceeds the planar Si single junction solar cell fabricated using identical process.
AB - Heteroepitaxial integration of III-V and Si has been researched for many years since the Si is the prevalent platform and III-V can be used for light emitting source (i.e., direct bandgap) [1]. Although vertical InAs nanowires (NWs) growth on Si substrate (11.6% lattice mismatch) without catalysts and patterning has been demonstrated by several groups, [2, 3], direct heteroexpitaxial growth of ternary InxGa1-xAs nanowires hasn't been systematically studied yet, in spite of its important spectral coverage in the near infrared range. In this paper, we report the one-dimensional heteroepitaxial growth of dislocation free InxGa 1-xAs nanowires on silicon (111) substrate in the entire composition range and demonstrate monolithically grown axial p-n junction tandem solar cells consisting of InxGa1-xAs NWs on Si with an efficiency that well exceeds the planar Si single junction solar cell fabricated using identical process.
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U2 - 10.1109/DRC.2011.5994434
DO - 10.1109/DRC.2011.5994434
M3 - Conference contribution
AN - SCOPUS:84880724983
SN - 9781612842417
T3 - Device Research Conference - Conference Digest, DRC
SP - 101
EP - 102
BT - 69th Device Research Conference, DRC 2011 - Conference Digest
T2 - 69th Device Research Conference, DRC 2011
Y2 - 20 June 2011 through 22 June 2011
ER -