نتایج جستجو برای: 2d material

تعداد نتایج: 442605  

Journal: :Nano letters 2014
Kai Liu Qimin Yan Michelle Chen Wen Fan Yinghui Sun Joonki Suh Deyi Fu Sangwook Lee Jian Zhou Sefaattin Tongay Jie Ji Jeffrey B Neaton Junqiao Wu

Elastic properties of materials are an important factor in their integration in applications. Chemical vapor deposited (CVD) monolayer semiconductors are proposed as key components in industrial-scale flexible devices and building blocks of two-dimensional (2D) van der Waals heterostructures. However, their mechanical and elastic properties have not been fully characterized. Here we report high...

2016
Jae Yoon Lee Jun-Hwan Shin Gwan-Hyoung Lee Chul-Ho Lee

Two-dimensional (2D) semiconductors such as transition metal dichalcogenides (TMDCs) and black phosphorous have drawn tremendous attention as an emerging optical material due to their unique and remarkable optical properties. In addition, the ability to create the atomically-controlled van der Waals (vdW) heterostructures enables realizing novel optoelectronic devices that are distinct from con...

Arass Rasaei, Raheleh Rooshenas

Introduction: Electronic portal imaging devices (EPIDs) could potentially be useful for intensity-modulated radiation therapy (IMRT) and VMAT QA. The data density, high resolution, large active area, and efficiency of the MV EPID make it an attractive option. However, EPIDs were designed as imaging devices, not dosimeters, and as a result they do not inherently measure dose in ...

Journal: :Optics letters 2005
Yang Zhao Jinsong Wang Guangzhao Mao

A two-dimensional (2D) subwavelength nanostructure for antireflection coating is fabricated upon a transparent substrate. Self-assembled 2D colloidal crystals are used as a nanoscale composite material with controlled thickness and low refractive index. The feature size of the structure is approximately 105 nm. The structure is used for antireflection coating, and the measured reflectivity of a...

Journal: :European journal of endocrinology 2006
B Moosgaard P Vestergaard L Heickendorff F Melsen P Christiansen L Mosekilde

BACKGROUND Primary hyperparathyroidism (PHPT) is associated with reduced plasma 25-hydroxyvitamin D (P-25OHD) and usually increased plasma 1alpha,25-dihydroxyvitamin D (P-1,25(OH)2D). Parathyroid tissue expresses the vitamin D receptor and it is thought that circulating 1,25(OH)2D participate in the regulation of parathyroid cell proliferation, differentiation and secretion. AIM To investigat...

Journal: :Accounts of chemical research 2012
Jaemyung Kim Laura J Cote Jiaxing Huang

Graphite oxide sheets, now called graphene oxide (GO), can be made from chemical exfoliation of graphite by reactions that have been known for 150 years. Because GO is a promising solution-processable precursor for the bulk production of graphene, interest in this old material has resurged. The reactions to produce GO add oxygenated functional groups to the graphene sheets on their basal plane ...

2017
Fernando Jiménez Urbanos Andrés Black Ramón Bernardo-Gavito Manuel R. Osorio Santiago Casado Daniel Granados

When mechanically exfoliated two-dimensional (2D) materials are used for device applications, their properties strongly depend on the geometry and number of layers present in the flake. In general, these properties cannot be modified once a device has been fabricated out of an exfoliated flake. In this work we present a novel nano-patterning method for 2D material based devices, Pulsed eBeam Ga...

Journal: :Energies 2021

In this study, a thermal energy storage tank filled with commercial phase change material flat slabs is investigated. The provides heat at around 15 °C to the evaporator of seasonal system developed under EU-funded project SWS-Heating. A 2D numerical model changed based on finite control volume approach was and validated experimental data. Based model, an optimization performed identify number,...

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