Axial InP Nanowire Tandem Junction Grown on a Silicon Substrate

作者:Heurlin Magnus*; Wickert Peter; Falt Stefan; Borgstrom Magnus T; Deppert Knut; Samuelson Lars; Magnusson Martin H
来源:Nano Letters, 2011, 11(5): 2028-2031.
DOI:10.1021/nl2004219

摘要

Tandem InP nanowire pn-junctions have been grown on a Si substrate using metal organic vapor phase epitaxy. In situ HCl etching allowed the different subcomponents to be stacked on top of each other in the axial extension of the nanowires without detrimental radial growth. Electro-optical measurements on a single nanowire tandem pn-junction device show an open-circuit voltage of 1.15 V under illumination close to 1 sun, which is an increase of 67% compared to a single pn-junction device.

  • 出版日期2011-5