English
Related papers

Related papers: Birefringent Graphene Oxide Liquid Crystals in Mic…

200 papers

We present high-resolution optical birefringence measurements upon sequential filling of an array of parallel-aligned nanochannels (14~nm mean diameter) with rod-like (acetonitrile) and disc-like (hexafluorobenzene) molecules. We will…

Soft Condensed Matter · Physics 2015-03-17 Matthias Wolff , Klaus Knorr , Patrick Huber , Andriy V. Kityk

Porous, atomically thin graphene membranes have interesting properties for filtration and sieving applications because they can accommodate small pore sizes, while maintaining high permeability. These membranes are therefore receiving much…

Graphene is of increasing interest for optoelectronic applications exploiting light detection, light emission and light modulation. Intrinsically light matter interaction in graphene is of a broadband type. However by integrating graphene…

In this study, the concept of rheo-optics is applied that explores the flow birefringence caused by stress components along the optical axis of the camera since it is often overlooked in the traditional theories of photoelastic flow…

Soft Condensed Matter · Physics 2024-05-21 William Kai Alexander Worby , Kento Nakamine , Yuto Yokoyama , Masakazu Muto , Yoshiyuki Tagawa

Various properties of water are affected by confinement as the space-filling of the water molecules is very different from bulk water. In our study, we challenged the creation of a stable system in which water molecules are permanently…

Mesoscale and Nanoscale Physics · Physics 2026-04-28 Tim Verhagen , Jiri Klimes , Barbara Pacakova , Martin Kalbac , Jana Vejpravova

The present study investigated the flow birefringence induced by shear components along a camera's optical axis, which has been neglected in conventional theories of photoelastic measurements. Measurements were conducted for a wide range of…

Since last decade, graphene has materialized itself as one of the phenomenal materials to modern researchers because of its remarkable thermal, optical, electronic, and mechanical properties. Graphene holds enormous potentials for lab on…

Applied Physics · Physics 2019-10-11 Joydip Sengupta , Chaudhery Mustansar Hussain

Graphene is only one atom thick, optically transparent, chemically inert and an excellent conductor. These properties seem to make this material an excellent candidate for applications in various photonic devices that require conducting but…

A spin field effect transistor (FET) is proposed by utilizing a graphene nanoribbon as the channel. Similar to the conventional spin FETs, the device involves ferromagnetic metals as a source and drain; they, in turn, are connected to the…

Materials Science · Physics 2007-07-23 Y. G. Semenov , K. W. Kim , J. M. Zavada

Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection…

Medical Physics · Physics 2024-07-16 Ricardo Bravo , Ricardo Silva , Eric Barret , John Brunnings , Adianette Segarra

Graphene materials and structures have become an essential part of modern electronics and photovoltaics. However, despite many production methods, applications of graphene-based structures are hindered by high costs, lack of scalability and…

Using graphene as a tuneable optical material enables a series of optical devices such as switchable radar absorbers, variable infrared emissivity surfaces, or visible electrochromic devices. These devices rely on controlling the charge…

Applied Physics · Physics 2023-06-16 Xiaoxiao Yu , Gokhan Bakan , Hengyi Guo , M. Said Ergoktas , Pietro Steiner , Coskun Kocabas

We exploit the optical lever principle to detect minute fluctuations of a liquid-air interface. Waves propagating on the interface deflect a specularly reflected laser beam, inducing angular deviations captured by a dual-element photodiode.…

All-electronic interrogation of biofluid flow velocity by sensors incorporated in ultra-low-power or self-sustained systems offers the promise of enabling multifarious emerging research and applications. Electrical sensors based on…

Applied Physics · Physics 2021-04-14 Xiaoyu Zhang , Eric Chia , Xiao Fan , Jinglei Ping

Water inside the low dimensional carbon structures has been considered seriously owing to fundamental interest in its flow and structures as well as its practical impact. Recently, the anomalous perfect penetration of water through graphene…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Danil W. Boukhvalov , Mikhail I. Katsnelson , Young-Woo Son

We show that vapors of different chemicals produce distinguishably different effects on the low-frequency noise spectra of graphene. It was found in a systematic study that some gases change the electrical resistance of graphene devices…

The investigation of liquid flow at the nanoscale is a key area of applied research with high relevance to Physics, Chemistry and Biology. We introduce a method and a device that allows to spatially resolve liquid flow by integrating an…

Mesoscale and Nanoscale Physics · Physics 2016-08-24 R. F. Neumann , M. Engel , M. Steiner

In this paper we investigate the hydrodynamic permeance of water through graphene-based membranes, inspired by recent experimental findings on graphene-oxide membranes. We consider the flow across multiple graphene layers having nanoslits…

Mesoscale and Nanoscale Physics · Physics 2016-06-16 Hiroaki Yoshida , Lydéric Bocquet

The optically induced reorientation of nematic liquid crystal doped with azo-dye substituted polymer is investigated measuring photoinduced birefringence. These measurement reveal the value (Dn~0.1) of induced birefringence of liquid…

Optics · Physics 2015-06-26 A. Parfenov , A. Chrzanowska

The most characteristic functional property of antiferroelectric materials is the possibility to induce a phase transition from a non-polar to a polar phase by an electric field. Here, we investigate the effect of this field-induced phase…