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Zhang L, Luo JW, Zunger A, et al. Wide InP nanowires with wurtzite/zincblende superlattice segments are type-II whereas narrower nanowires become type-I: an atomistic pseudopotential calculation. Nano Lett. 2010;10(10):4055-60doi: 10.1021/nl102109s.
Zhang, L., Luo, J. W., Zunger, A., Akopian, N., Zwiller, V., & Harmand, J. C. (2010). Wide InP nanowires with wurtzite/zincblende superlattice segments are type-II whereas narrower nanowires become type-I: an atomistic pseudopotential calculation. Nano letters, 10(10), 4055-60. https://doi.org/10.1021/nl102109s
Zhang, Lijun, et al. "Wide InP nanowires with wurtzite/zincblende superlattice segments are type-II whereas narrower nanowires become type-I: an atomistic pseudopotential calculation." Nano letters vol. 10,10 (2010): 4055-60. doi: https://doi.org/10.1021/nl102109s
Zhang L, Luo JW, Zunger A, Akopian N, Zwiller V, Harmand JC. Wide InP nanowires with wurtzite/zincblende superlattice segments are type-II whereas narrower nanowires become type-I: an atomistic pseudopotential calculation. Nano Lett. 2010 Oct 13;10(10):4055-60. doi: 10.1021/nl102109s. PMID: 20809611.
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Nano Lett. 2010 Oct 13;10(10):4055-60. doi: 10.1021/nl102109s.

Wide InP nanowires with wurtzite/zincblende superlattice segments are type-II whereas narrower nanowires become type-I: an atomistic pseudopotential calculation.

Nano letters

Lijun Zhang, Jun-Wei Luo, Alex Zunger, Nika Akopian, Val Zwiller, Jean-Christophe Harmand

Affiliations

  1. National Renewable Energy Laboratory, Golden, Colorado 80401, USA.

PMID: 20809611 DOI: 10.1021/nl102109s

Abstract

Nanowire-superlattices with different structural phases along the nanowire direction, such as wurtzite (WZ) and zincblende (ZB) forms of the same compound, often exhibit a "type II" band-alignment with electrons on ZB and holes on WZ. This is a material property of most of III-V semiconductors. We show via InP nanowires that as the nanowire diameter decreases, quantum-confinement alters this basic material property, placing both electrons and holes on the same (ZB) phase. This structural design causes a dramatic increase in absorption strength and reduced radiative lifetime.

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