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Author

Choi, Kyoung Jin
Energy Conversion Materials (EcoMAT) Lab
Research Interests
  • Solar cells, thermoelectrics, piezoelectric

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Wafer-Scale Production of Uniform InAsyP1-y Nanowire Array on Silicon for Heterogeneous Integration

Cited 9 times inthomson ciCited 7 times inthomson ci
Title
Wafer-Scale Production of Uniform InAsyP1-y Nanowire Array on Silicon for Heterogeneous Integration
Author
Shin, Jae CheolLee, AriMohseni, Parsian KatalKim, Do YangYu, LanKim, Jae HunKim, Hyo JinChoi, Won JunWasserman, DanielChoi, Kyoung JinLi, Xiuling
Keywords
Compound semiconductors; Hetero-interfaces; Heterogeneous integration; Heterojunction solar cells; II-IV semiconductors; InAs; Large-scale production; One-dimensional crystals
Issue Date
201306
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.7, no.6, pp.5463 - 5471
Abstract
One-dimensional crystal growth allows the epitaxial integration of compound semiconductors on silicon (Si), as the large lattice-mismatch strain arising from heterointerfaces can be laterally relieved. Here, we report the direct heteroepitaxial growth of a mixed anion ternary InAsyP1-y nanowire array across an entire 2 in. Si wafer with unprecedented spatial, structural, and special uniformity across the entire 2 in. wafer and dramatic improvements in aspect ratio (>100) and area density (>5 × 10 8/cm2). Heterojunction solar cells consisting of n-type InAsyP1-y (y = 0.75) and p-type Si achieve a conversion efficiency of 3.6% under air mass 1.5 illumination. This work demonstrates the potential for large-scale production of these nanowires for heterogeneous integration of optoelectronic devices.
URI
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DOI
http://dx.doi.org/10.1021/nn4014774
ISSN
1936-0851
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MSE_Journal Papers

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