Multilayer self-organization of InGaAs quantum wires on GaAs surfaces

Wang, Zhiming M.; Kunets, Vasyl P.; Xie, Y. Z.; Schmidbauer, M.; Dorogan, V. G.; Mazur, Yuriy I.; Salamo, Gregory J.

doi:10.1016/j.physleta.2010.10.051

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…19 Quantum wires (samples B and C) were grown centered in the i-region at a substrate temperature of 540 C by depositing 11 ML of In 0.4 Ga 0.6 As via Stranski-Krastanov growth technique. 17,18 Thus, the reference sample A was exactly the same as samples B and C without the introduction of QWrs or dopants into the i-region. All samples were fabricated as 5 mm Â 5 mm solar cells using standard photolithography techniques and wet chemical etching.…”

Section: Methodsmentioning

confidence: 99%

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Band filling effects on temperature performance of intermediate band quantum wire solar cells

Kunets

Furrow

Ware

et al. 2014

Journal of Applied Physics

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Articles you may be interested inInGaAs/GaAsP strain balanced multi-quantum wires grown on misoriented GaAs substrates for high efficiency solar cells Appl. Phys. Lett. 105, 083124 (2014); 10.1063/1.4894424 Theoretical analysis of GaAs/AlGaAs quantum dots in quantum wire array for intermediate band solar cell Detailed studies of solar cell efficiency as a function of temperature were performed for quantum wire intermediate band solar cells grown on the (311)A plane. A remotely doped one-dimensional intermediate band made of self-assembled In 0.4 Ga 0.6 As quantum wires was compared to an undoped intermediate band and a reference p-i-n GaAs sample. These studies indicate that the efficiencies of these solar cells depend on the population of the one-dimensional band by equilibrium free carriers. A change in this population by free electrons under various temperatures affects absorption and carrier transport of non-equilibrium carriers generated by incident light. This results in different efficiencies for both the doped and undoped intermediate band solar cells in comparison with the reference GaAs p-i-n solar cell device. V C 2014 AIP Publishing LLC.

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Section: Methodsmentioning

confidence: 99%

“…This agrees well with our previous studies, where the dependence of wire uniformity on spacer layer thickness was studied in detail for different GaAs high index surfaces. 18 TEM studies taken across the ½01 1 direction represent wire height uniformity and are shown in Fig. 2(b).…”

Section: A Structural Studies: Transmission Electron Microscopymentioning

confidence: 99%

Band filling effects on temperature performance of intermediate band quantum wire solar cells

Kunets

Furrow

Ware

et al. 2014

Journal of Applied Physics

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“…The exposure of CdSe to colon cancer cells at 10 5 × 0.84 for 24 h reduced cell viability, which was in a dose-and time-dependent manner [159].…”

Section: Metal Npsmentioning

confidence: 94%

Health concerns of various nanoparticles: A review of their in vitro and in vivo toxicity

Ajdari¹,

Moosavi²,

Rahmati³

et al. 2018

Preprint

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Nanoparticles (NPs) are widely used in diverse disciplines, including biology, medicine science. The central question that need to be answered is whether NPs have toxic effects on biological cells and molecules or are they safe. The safety of NPs including targeted drug delivery is critical and so is their toxicity in the environment. In recent years, in vitro and in vivo research on animals has generated abundant information about the toxicity of NPs.However, due to varying laboratory conditions, the comparison of the results from ensuing studies is somewhat unreliable. It should be noted that, depending on the type of production, NPs can enter the body through inhalation, skin and via digestive routes. Due to the diversity of NPs and their properties, there is paucity of accurate information on their toxicological effects; particle size, shape, surface area and the chemical levels are considered as key factors in creating health and toxicological effects. Consequently, there is a need for reliable information about their effects on various organs so as to deal with NPs effectively and their impact on health and the environment. This review covers the existing knowledge base on the subject that hopefully prepares us better to address these challenges.

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“…QDs may be advantageous because administration of a QDs formulation is non-invasive and eliminates the need for a biopsy. QDs toxicity, however, remains a major concern for clinical applications 43–49 .…”

Section: Nanotools For Diagnosticsmentioning

confidence: 99%

Nanotechnology in diagnostics and therapeutics for gastrointestinal disorders

Laroui

Rakhya

Xiao

et al. 2013

Digestive and Liver Disease

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This review describes the state of art in nanoparticle and nanodevice applications for medical diagnosis and disease treatment. Nanodevices, such as cantilevers, have been integrated into high-sensitivity disease marker diagnostic detectors and devices, are stable over long periods of time, and display reliable performance properties. Nanotechnology strategies have been applied to therapeutic purposes as well. For example, nanoparticle-based delivery systems have been developed to protect drugs from degradation, thereby reducing the required dose and dose frequency, improving patient comfort and convenience during treatment, and reducing treatment expenses. The main objectives for integrating nanotechnologies into diagnostic and therapeutic applications in the context of intestinal diseases are reviewed.

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Multilayer self-organization of InGaAs quantum wires on GaAs surfaces

Cited by 8 publications

References 18 publications

Band filling effects on temperature performance of intermediate band quantum wire solar cells

Band filling effects on temperature performance of intermediate band quantum wire solar cells

Health concerns of various nanoparticles: A review of their in vitro and in vivo toxicity

Nanotechnology in diagnostics and therapeutics for gastrointestinal disorders

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