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Tailoring the optical characteristics of microsized InP nanoneedles directly grown on silicon
Li K.2; Sun H.2; Ren F.2; Ng K.W.2; Tran T.-T.D.2; Chen R.2; Chang-Hasnain C.J.2
2014-01-08
Source PublicationNano Letters
ISSN15306984 15306992
Volume14Issue:1Pages:183-190
AbstractNanoscale self-assembly offers a pathway to realize heterogeneous integration of III-V materials on silicon. However, for III-V nanowires directly grown on silicon, dislocation-free single-crystal quality could only be attained below certain critical dimensions. We recently reported a new approach that overcomes this size constraint, demonstrating the growth of single-crystal InGaAs/GaAs and InP nanoneedles with the base diameters exceeding 1 μm. Here, we report distinct optical characteristics of InP nanoneedles which are varied from mostly zincblende, zincblende/wurtzite-mixed, to pure wurtzite crystalline phase. We achieved, for the first time, pure single-crystal wurtzite-phase InP nanoneedles grown on silicon with bandgaps of 80 meV larger than that of zincblende-phase InP. Being able to attain excellent material quality while scaling up in size promises outstanding device performance of these nanoneedles. At room temperature, a high internal quantum efficiency of 25% and optically pumped lasing are demonstrated for single nanoneedle as-grown on silicon substrate. Recombination dynamics proves the excellent surface quality of the InP nanoneedles, which paves the way toward achieving multijunction photovoltaic cells, long-wavelength heterostructure lasers, and advanced photonic integrated circuits. © 2013 American Chemical Society.
KeywordInP nanowire nanolaser photovoltaics silicon type-II wurtzite
DOI10.1021/nl403712f
URLView the original
Language英語
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Cited Times [WOS]:39   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Tsinghua University
2.University of California, Berkeley
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GB/T 7714
Li K.,Sun H.,Ren F.,et al. Tailoring the optical characteristics of microsized InP nanoneedles directly grown on silicon[J]. Nano Letters,2014,14(1):183-190.
APA Li K..,Sun H..,Ren F..,Ng K.W..,Tran T.-T.D..,...&Chang-Hasnain C.J..(2014).Tailoring the optical characteristics of microsized InP nanoneedles directly grown on silicon.Nano Letters,14(1),183-190.
MLA Li K.,et al."Tailoring the optical characteristics of microsized InP nanoneedles directly grown on silicon".Nano Letters 14.1(2014):183-190.
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