Wide InP Nanowires with Wurtzite/Zincblende Superlattice Segments Are Type-II whereas Narrower Nanowires Become Type-I: An Atomistic Pseudopotential Calculation

被引：69

作者：

Zhang, Lijun ^{[1
]}

Luo, Jun-Wei ^{[1
]}

Zunger, Alex ^{[1
]}

Akopian, Nika ^{[2
]}

Zwiller, Val ^{[2
]}

Harmand, Jean-Christophe ^{[3
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

[2] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[3] CNRS, Lab Photon & Nanostruct, F-91460 Marcoussis, France

来源：

NANO LETTERS | 2010年 / 10卷 / 10期

关键词：

Electron-hole separation; nanowire superlattice; type II-type I transition; BAND ALIGNMENT; PHOTOLUMINESCENCE;

D O I：

10.1021/nl102109s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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

引用

页码：4055 / 4060

页数：6

共 8 条

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APPLIED PHYSICS LETTERS, 2008, 93 (07)
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PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2025, 166
[3] Spectral diffusion of type-II excitons in wurtzite InP/InAs/InP core-multishell nanowires
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JOURNAL OF LUMINESCENCE, 2009, 129 (12) : 1941 - 1944
[4] TYPE-I TO TYPE-II SUPERLATTICE TRANSITION IN STRAINED LAYERS OF INXGA1-XAS GROWN ON INP
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PHYSICAL REVIEW LETTERS, 1988, 60 (05) : 448 - 451
[5] Epitaxial type-I and type-II InAs-AlAsSb core-shell nanowires on silicon
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APPLIED PHYSICS LETTERS, 2021, 119 (19)
[6] Type-II band alignment of zinc-blende and wurtzite segments in GaAs nanowires: A combined photoluminescence and resonant Raman scattering study
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PHYSICAL REVIEW B, 2014, 89 (04)
[7] Mid-infrared photoluminescence revealing internal quantum efficiency enhancement of type-I and type-II InAs core/shell nanowires
Chen, Xiren
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Sanchez, A. M.
Ma, Shufang
Zhuang, Qiandong
Shao, Jun
OPTICS LETTERS, 2022, 47 (19) : 5208 - 5211
[8] Mid-infrared photoluminescence revealing internal quantum efficiency enhancement of type-I and type-II InAs core/shell nanowires (vol 47, 5208, 2021)
Chen, Xiren
Alradhi, H.
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Sanchez, A. M.
Ma, Shufang
Zhuang, Qiandong
Shao, Jun
OPTICS LETTERS, 2022, 47 (21) : 5659 - 5659

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