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We report here a quantitative method of Transmission Electron Microscopy (TEM) to measure the shapes, sizes and volumes of nanoparticles which are responsible for their properties. Gold nanoparticles (Au NPs) acting as nucleating agents for…

The ability to create micro/nano patterns of organic self-assembled monolayers on semiconductor surfaces is crucial for fundamental studies and applications in a number of emerging fields in nanoscience. Here, we demonstrate the patterning…

Applied Physics · Physics 2020-01-06 Tianhan Liu , Timothy Keiper , Xiaolei Wang , Guang Yang , Daniel Hallinan , Jianhua Zhao , Peng Xiong

We report experiments on surface nanopatterning of Si targets which are irradiated with 2 keV Ar + ions impinging at near-glancing incidence, under concurrent co-deposition of Au impurities simultaneously extracted from a gold target by the…

Mesoscale and Nanoscale Physics · Physics 2016-03-30 B. Moon , S. Yoo , J. -S. Kim , S. J. Kang , J. Muñoz-García , R. Cuerno

Defect engineering in two-dimensional (2D) materials is essential for advancing applications such as gas sensing, single-atom catalysis, and guided nanoparticle self-assembly, enabling the creation of materials with tailored…

Bio-conjugated nanomaterials play a promising role in the development of novel supramolecular structures, molecular machines, and biosensing devices. In this study, lipid-conjugated gold nanoparticles were synthesized and allowed to form a…

Materials Science · Physics 2012-07-24 Subhasish Chatterjee , Markrete Krikorian , Harry D. Gafney , Bonnie Gersten

Gold nanoparticles (GNPs) constitute a breakthrough in modern chemistry. The recent success in the synthesis and total structure determination of the precise-composition GNPs provides exciting opportunities for fundamental studies and…

Materials Science · Physics 2015-02-05 Vitaly Chaban

Hypothesis: Introducing charged terminal groups to polymers that graft nanoparticles enables Coulombic control over their assembly by tuning the pH and salinity of aqueous suspensions. Experiments: Gold nanoparticles (AuNPs) are grafted…

Mesoscale and Nanoscale Physics · Physics 2023-12-08 Hyeong Jin Kim , Binay P. Nayak , Honghu Zhang , Benjamin M. Ocko , Alex Travesset , David Vaknin , Surya K. Mallapragada , Wenjie Wang

Patterns of silver metal were prepared on DNA networks by a template-directed selective deposition and subsequent metallization process. Scanning force microscopic observations and XPS investigations demonstrated that uniform networks of…

Materials Science · Physics 2010-09-09 Shuxi Dai , Xingtang Zhang , Tianfeng Li , Zuliang Du , Hongxin Dang

The paper presents the results of investigation of the structure of porous condensates of Ag-NaCl and Cu-NaCl composition; chemical and phase compositions and dimensions of nanoparticles, produced from the vapour phase by EBPVD method.…

Materials Science · Physics 2019-01-04 Yu. A. Kurapov , S. E. Litvin , S. M. Romanenko , G. G. Didikin , N. N. Belyavina

Amphiphilic phospholipids and nanoparticles functionalized with hydrophobic capping ligands have previously been extensively investigated for their capacity to self-assemble into Langmuir monolayers at the air/water interface. However,…

In a hierarchical nanopatterning routine relying exclusively on self-assembly processes we combine crystal surface reconstruction, microphase separation of copolymers, and selective metal diffusion to produce monodisperse metal…

Mesoscale and Nanoscale Physics · Physics 2017-07-07 Denise Erb , Kai Schlage , Ralf Röhlsberger

Nanocomposite matrices of silver/poly(3-hexylthiophene) (P3HT) were prepared in ultrahigh vacuum through vapor-phase co-deposition. Change in microstructure, chemical nature and electronic properties with increasing filler (Ag) content were…

Materials Science · Physics 2011-06-28 L. Scudiero , Haoyan Wei , Hergen Eilers

The investigation of the Localized Surface Plasmon Resonance for plasmonic nanoparticles has opened new perspectives for optical nanosensors. Today, an issue in plasmonics is the development of large scale and low cost devices. We focus…

Mesoscale and Nanoscale Physics · Physics 2013-04-23 S. Lamarre , A. Sarrazin , J. Proust , H. Yockell-Lelièvre , J. Plain , A. M. Ritcey , T. Maurer

Graphene on noble-metal nanostructures constitutes an attractive nanocomposite with possible applications in sensors or energy conversion. In this work we study the properties of hybrid graphene/gold nanoparticle structures by Raman…

Mesoscale and Nanoscale Physics · Physics 2018-06-14 András Pálinkás , Péter Kun , Antal A. Koós , Zoltán Osváth

We present here an original process combining top-down and bottom-up approaches by annealing a thin gold film evaporated onto a hole template made by etching a PS-PMMA copolymer film. Such process allows a better control of the gold…

Mesoscale and Nanoscale Physics · Physics 2013-11-01 A. Plaud , A. Sarrazin , J. Béal , J. Proust , P. Royer , J. -L. Bijeon , J. Plain , P. -M. Adam , T. Maurer

Chemically derived graphene sheets were found to self-assemble onto patterned gold structures via electrostatic interactions between noncovalent functional groups on GS and gold. This afforded regular arrays of single graphene sheets on…

Materials Science · Physics 2009-02-24 Hailiang Wang , Xinran Wang , Xiaolin Li , Hongjie Dai

The present paper deals with the systematic growth of plasmonic gold nanoparticles (Au NPs) on molybdenum disulphide (MoS$_2$) nanosheets as well as the effect of Au NPs on the optical and magnetic properties. The crystalline nature of the…

Materials Science · Physics 2020-01-30 Anjali Rani , Arun Singh Patel , Anirban Chakraborti , Kulvinder Singh , Prianka Sharma

It is widely accepted that self-assembling building blocks is one of the promising ways for engineering new materials. Recent years reveal substantial progress in fabricating colloidal particles, polymer blocks and supramolecular aggregates…

Materials Science · Physics 2007-05-23 N. Berdunov , G. Mariotto , K. Balakrishnan , I. V. Shvets

We compute the decay rates of emitters coupled to spheroidal nanoantennas made of gold, copper, silver, and aluminum. The spectral position of the localized surface plasmon-polariton resonance, the enhancement factors and the quantum…

Chemical Physics · Physics 2009-09-24 Ahmad Mohammadi , Vahid Sandoghdar , Mario Agio

A green and facile synthetic protocol for the preparation of photoactive gold nanoparticle-soft oxometalates (AuNP-SOM) using a unique Keplarate type oxomolybdate cluster viz. {Mo$_{132}$}, is reported. The as synthesized AuNP-SOMs are…

Soft Condensed Matter · Physics 2014-02-27 Atharva Sahasrabudhe , Soumyajit Roy
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