نتایج جستجو برای: monolayer

تعداد نتایج: 20726  

2017
Tianle Guo Siddharth Sampat Kehao Zhang Joshua A. Robinson Sara M. Rupich Yves J. Chabal Yuri N. Gartstein Anton V. Malko

Two-dimensional transition metal dichalcogenides (TMDCs) like MoS2 are promising candidates for various optoelectronic applications. The typical photoluminescence (PL) of monolayer MoS2 is however known to suffer very low quantum yields. We demonstrate a 10-fold increase of MoS2 excitonic PL enabled by nonradiative energy transfer (NRET) from adjacent nanocrystal quantum dot (NQD) films. The un...

2008
Katrina L. Van Dellen Laetitia Houot Paula I. Watnick

A bacterial monolayer biofilm is a collection of cells attached to a surface but not to each other. Monolayer formation is initiated when a bacterial cell forms a transient attachment to a surface. While some transient attachments are broken, others transition into the permanent attachments that define a monolayer biofilm. In this work, we describe the results of a large-scale, microscopy-based...

2008
Katrina L. Van Dellen Laetitia Houot Paula I. Watnick

1 A bacterial monolayer biofilm is a collection of cells attached to a surface but not to 2 each other. Monolayer formation is initiated when a bacterial cell forms a transient 3 attachment to a surface. While some transient attachments are broken, others 4 transition into the permanent attachments that define the monolayer biofilm. In this 5 work, we describe the results of a large-scale, micr...

Jila Rajaee Marzieh Ebrahimi Samideh Khoei Seied Rabi Mahdavi,

Introduction: Prostate cancer (PCa) is the most prevalent malignant tumor in the male population worldwide and it is the second leading cause of cancer-related death in males. PCa is almost incurable due to the resistance of PCa to conventional treatments. Cancer stem cells (CSCs) theory suggests that a small subpopulation of cancer cells is responsible for tumor development, ...

2005
Cary L. Pint Michael W. Roth

The melting transition in hexane and decane monolayers are studied through use of a canonical ensemble molecular dynamics (MD) simulation method, where the monolayer is physisorbed onto a single, infinite graphite slab, with another confining graphite slab some varying vertical distance from the monolayer. Using a simple united-atom model to depict the alkanes, simulations suggest that the mono...

2015
Hoseok Heo Ji Ho Sung Soonyoung Cha Bo-Gyu Jang Joo-Youn Kim Gangtae Jin Donghun Lee Ji-Hoon Ahn Myoung-Jae Lee Ji Hoon Shim Hyunyong Choi Moon-Ho Jo

Two-dimensional stacks of dissimilar hexagonal monolayers exhibit unusual electronic, photonic and photovoltaic responses that arise from substantial interlayer excitations. Interband excitation phenomena in individual hexagonal monolayer occur in states at band edges (valleys) in the hexagonal momentum space; therefore, low-energy interlayer excitation in the hexagonal monolayer stacks can be ...

2007
G Demirel MO Çağlayan B Garipcan M Duman E Pişkin

We have investigated the effects of dipping time, solution concentration and solvent type on the formation of self-assembled monolayers with aminosiloxane molecules (i.e., N-(3 trimethoxysilylpropyl)diethylenetriamine (TPDA)) on the Si(001) surface. Studies performed with an ellipsometer showed that monolayers with a thickness of about 1.2 nm were formed when the dipping time is about 2 h, whil...

2005
Elizabeth Tran Christian Grave George M. Whitesides Maria A. Rampi

We show how the mechanism of electron transfer through molecules can be switched between different regimes by using Hg-based metal–molecules–metal junctions. The junctions are easy to assemble and allow for hosting of self-assembled monolayers (SAMs) of a large variety of molecular structures. In this paper, we compare results from studies of charge transport across two different types of junct...

2017
Ying Han Kohei Uosaki

The formation process of self-assembled monolayer (SAM) of decanethiol (C10SH) on Au(111) single crystal electrode has been investigated for wide range of C10SH concentration (0.1 M ∼ 500 M) and temperature (253 K ∼ 298 K). The amount and quality of C10SH SAM were determined from area and position, respectively, of reductive desorption peak of the SAM modified Au(111) electrode measured in 0....

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