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Robust nanoporous polymer films with approximate 100-nm thicknesses would be broadly applicable in technological areas such as flexible sensors, artificial skins, separators, antireflection and self-cleaning films. However, the creation of…

Applied Physics · Physics 2019-01-24 Jin Li , Runlai Li , Qiao Gu , Qinghua Zhang , T. X. Yu , Ping Gao

Conformable Electronics refers to a class of electronic devices that have the ability to conformally adhere onto non-planar surfaces and materials, resulting particularly appealing for skin applications, such as the case of skin-worn…

We report an ultrafast, parallel and beyond-the-master micro-patterning technique for ultrathin (30 nm-400 nm) non-absorbing polymer films by diffraction of a laser light through a two dimensional periodic aperture. The redistribution of…

Soft Condensed Matter · Physics 2011-01-28 Ankur Verma , Ashutosh Sharma , Giridhar U. Kulkarni

Light weight and mechanically robust cellular polymer nanofilms provide materials solutions to many cutting-edge technologies, such as high-flux membrane filtration, ultrathin flexible energy storage, and skin-conformable devices. However,…

Materials Science · Physics 2020-11-24 Ping Gao , Qiao Gu , Jin Li , Runlai Li , Qinghua Zhang , Lu-tao Weng , Tianshou Zhao , T. X. Yu , Minhua Shao , Khalil Amine

It is widely agreed that phase change materials (PCMs) are of high interest for sustainable energy future. Many of the applications require anti-leakage properties of PCM, that can be accomplished through PCM encapsulation. In this study,…

The escalating global issue of plastic waste accumulation, specifically polyolefins, necessitates an urgent solution for upcycling these materials into beneficial compounds. Yet, achieving such upcycling without introducing carbon dioxide…

Applied Physics · Physics 2024-01-17 Yuexiang Sun , Xin Ma , Qiao Gu , Ping Gao

Polystyrene and polyvinyl chloride thin films are explored as sample supports for extreme ultraviolet (XUV) spectroscopy of molecular transition metal complexes. Thin polymer films prepared by slip-coating are flat, smooth, and transmit…

Chemical Physics · Physics 2021-08-17 Yusef Shari'ati , Josh Vura-Weis

Membrane ultrafiltration (UF) is a pressure driven process allowing for the separation and enrichment of protein solutions and dispersions of nanosized microgel particles. The permeate flux and the near-membrane concentration-polarization…

Soft Condensed Matter · Physics 2015-05-19 Rafael Roa , Emiliy K. Zholkovskiy , Gerhard Nägele

The continuing development of evaporative lithography is important for many areas such as the creation of photonic crystals for optronics and microelectronics, the development of biosensors for medical applications and biotechnology, and…

Soft Condensed Matter · Physics 2024-04-04 Konstantin Kolegov

Field-induced self-organized patterning in ultrathin (< 100 nm) polymer films produces resolutions of the order of 10 {\mu}m or more because of the high energy penalty for the surface deformations on small scales. We propose here a very…

Soft Condensed Matter · Physics 2010-09-28 Ankur Verma , Ashutosh Sharma

We present a theoretical study on the impact of an active optical layer on the emission properties of an ultrathin luminescent film. While the study can be generalized to any material, we focus here on a simple layered medium composed of a…

Materials Science · Physics 2015-06-16 R. Aad , S. Blaize , A. Bruyant , C. Couteau , G. Lérondel

Large scale molecular dynamics simulations are used to study the dispersion of nanoparticles (NPs) in a polymer film during solvent evaporation. As the solvent evaporates, a dense polymer-rich skin layer forms at the liquid/vapor interface,…

Soft Condensed Matter · Physics 2016-05-23 Shengfeng Cheng , Gary S. Grest

Metal halide perovskites are of great interest for application in semitransparent solar cells due to their tunable bandgap and high performance. However, fabricating high-efficiency perovskite semitransparent devices with high average…

Materials Science · Physics 2024-04-22 Zongbao Zhang , Ran Ji , Xiangkun Jia , Shu-Jen Wang , Marielle Deconinck , Elena Siliavka , Yana Vaynzof

The use of UV light sources is highly relevant in many fields of science, being directly related to all those detection and diagnosis procedures which are based on fluorescence spectroscopy. Depending on the specific application, UV…

Materials Science · Physics 2015-11-17 Giovanni Morello , Rita Manco , Maria Moffa , Luana Persano , Andrea Camposeo , Dario Pisignano

Dewetting of ultrathin (< 100 nm) polymer films, by heating above the glass transition, produces droplets of sizes of the order of microns and mean separations between droplets of the order of tens of microns. These relatively large length…

Soft Condensed Matter · Physics 2011-06-06 Ankur Verma , Ashutosh Sharma

We propose an experimental approach, by which thin films of copper polyphthalocyanine (CuPPC) can be directly synthesized in a chemical vapor deposition (CVD) set-up at mild temperature (420 {\deg}C). High polymerization degree and high…

We report the development of magnetic nanocomposite sheets with superhydrophobic and superoleophilic surfaces generated by laser ablation. Polydimethylsiloxane elastomer freestanding films, loaded homogeneously with 2% wt. carbon coated…

Accessing fluid infiltration in nanogranular coatings is an outstanding challenge, of relevance for applications ranging from nanomedicine to catalysis. A sensing platform, allowing to quantify the amount of fluid infiltrated in a…

Permeation through nanometer pores is important in the design of materials for filtration and separation techniques and because of unusual fundamental behavior arising at the molecular scale. We found that submicron-thick membranes made…

Materials Science · Physics 2012-01-30 R. R. Nair , H. A. Wu , P. N. Jayaram , I. V. Grigorieva , A. K. Geim

Plasmonic materials and metamaterials have been widely utilized to achieve spectral transmission, reflection and absorption filters based on localized or delocalized resonances arising from the interaction of photons with nanostructured…

Optics · Physics 2014-10-30 Zhongyang Li , Serkan Butun , Koray Aydin
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