5-7-5 line defects on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>As</mml:mi><mml:mo>∕</mml:mo><mml:mi>Si</mml:mi><mml:mo>(</mml:mo><mml:mn>100</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math>: A general stress-relief mechanism for V/IV surfaces

McMahon, William E.; Batyrev, Iskander G.; Hannappel, T.; Olson, J. M.; Zhang, Shou-Cheng

doi:10.1103/physrevb.74.033304

Cited by 20 publications

(9 citation statements)

References 43 publications

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“…As Nomura et al pointed out [17], when Si nanoparticles are embedded in amorphous matrix, the wave function couples with the outer matrix and the energy gap blueshifts as the size decreases. Reportedly PL bands are in red and blue/violet regions for Sibased nanostructures [18,19]. It has been widely accepted that the red PL originates from the radiative recombination of excitons in the surface localized state in the nanocrystallite, while the blue PL stems from the Si-rich oxides including very small molecular-like Si clusters in silicon oxides [20] which supports that the violet/blue PL originates from the SiO x amorphous matrix component of the Si NWs in our samples.…”

Section: Resultssupporting

confidence: 67%

Long-persistent luminescence in near-ultraviolet from silicon nanowires

Zhao

Zhou

Zheng

et al. 2013

Materials Research Bulletin

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Section: Resultssupporting

confidence: 67%

Long-persistent luminescence in near-ultraviolet from silicon nanowires

Zhao

Zhou

Zheng

et al. 2013

Materials Research Bulletin

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“…While the results of this study are of significant importance in the analysis and understanding of the intriguing nanostructure in nipple arrays of butterfly eyes, the findings are also equally important in the broader context of symmetry breaking 5- and 7-fold defects and their distribution in numerous other and seemingly unrelated structures referenced earlier24252627282930313233343536373839404142434445464748. The type of 5- and 7-coordination defect and combinations thereof to form higher order defects have been observed in 2D structure systems such as magnetic bubble arrays, block copolymers, convection patterns, charge distributions, graphene, etc.…”

Section: Resultsmentioning

confidence: 86%

Mesostructure of Ordered Corneal Nano-nipple Arrays: The Role of 5–7 Coordination Defects

Lee

Erb

2016

Sci Rep

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Corneal nano-nipple structures consisting of hexagonally arranged protrusions with diameters around 200 nm have long been known for their antireflection capability and have served as biological blueprint for solar cell, optical lens and other surface designs. However, little is known about the global arrangement of these nipples on the ommatidial surface and their growth during the eye development. This study provides new insights based on the analysis of nano-nipple arrangements on the mesoscale across entire ommatidia, which has never been done before. The most important feature in the nipple structures are topological 5- and 7-fold coordination defects, which align to form dislocations and interconnected networks of grain boundaries that divide the ommatidia into crystalline domains in different orientations. Furthermore, the domain size distribution might be log-normal, and the domains demonstrate no preference in crystal orientation. Both observations suggest that the nipple growth process may be similar to the nucleation and growth mechanisms during the formation of other crystal structures. Our results are also consistent with the most recently proposed Turing-type reaction-diffusion process. In fact, we were able to produce the key structural characteristics of the nipple arrangements using Turing analysis from the nucleation to the final structure development.

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“…2), and in good agreement with the depth of similar P-terminated 5-7-5 structures. [38] The above result suggests that Bi can be fully stripped off from the Bi nanolines. This is opposite to previous experiments on hydrogenation of Bi nanolines which have reported that the nanolines were inert, [20] except for a recent indication of Bi nanoline damage with a very large dose (1000 L H 2 ) by Wang et al [39] We explain this controversy on the basis of the different hydrogenation setups used.…”

Section: Haiku Stripesmentioning

confidence: 84%

Endotaxial Si nanolines in Si(001):H

et al. 2011

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We present a detailed study of the structural and electronic properties of a self-assembled silicon nanoline embedded in the H-terminated silicon (001) surface, known as the Haiku stripe. The nanoline is a perfectly straight and defect-free endotaxial structure of huge aspect ratio; it can grow micrometer long at a constant width of exactly four Si dimers (1.54 nm). Another remarkable property is its capacity to be exposed to air without suffering any degradation. The nanoline grows independently of any step edges at tunable densities from isolated nanolines to a dense array of nanolines. In addition to these unique structural characteristics, scanning tunneling microscopy and density functional theory reveal a one-dimensional state confined along the Haiku core. This nanoline is a promising candidate for the long-sought-after electronic solid-state one-dimensional model system to explore the fascinating quantum properties emerging in such reduced dimensionality

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5-7-5 line defects onAs∕Si(100): A general stress-relief mechanism for V/IV surfaces

Cited by 20 publications

References 43 publications

Long-persistent luminescence in near-ultraviolet from silicon nanowires

Long-persistent luminescence in near-ultraviolet from silicon nanowires

Mesostructure of Ordered Corneal Nano-nipple Arrays: The Role of 5–7 Coordination Defects

Endotaxial Si nanolines in Si(001):H

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