Pattern formation in thin polymeric films via electrohydrodynamic patterning

G Lv, H Tian, J Shao, D Yu - RSC advances, 2022 - pubs.rsc.org
The free surface of a thin polymeric film is often unstable and deforms into various micro-
/nano-patterns under an externally applied electric field. This paper reviews a recent …

Analytical solution for transient electroosmotic flow in a rotating microchannel

B Gheshlaghi, H Nazaripoor, A Kumar, M Sadrzadeh - RSC advances, 2016 - pubs.rsc.org
An analytical solution is developed for the unsteady flow of fluid through a parallel rotating
plate microchannel, under the influence of electrokinetic force using the Debye–Hückel (DH) …

Electrohydrodynamic patterning of polyethersulfone membranes

AM Koupaei, H Nazaripoor, M Sadrzadeh - Langmuir, 2019 - ACS Publications
Microstructuring the surface of membranes is recognized as one of the effective strategies to
mitigate the fouling phenomenon. Over the years, significant efforts have been undertaken to …

Thermo-electrohydrodynamic patterning in nanofilms

H Nazaripoor, CR Koch, M Sadrzadeh… - Langmuir, 2016 - ACS Publications
To improve the electrically assisted patterning process and create smaller sized features
with the higher active surface area, the combined thermocapillary-electrohydrodynamic (TC …

Electrohydrodynamic patterning of ultra-thin ionic liquid films

H Nazaripoor, CR Koch, M Sadrzadeh, S Bhattacharjee - Soft Matter, 2015 - pubs.rsc.org
In the electrohydrodynamic (EHD) patterning process, electrostatic destabilization of the air–
polymer interface results in micro-and nano-size patterns in the form of raised formations …

Compact micro/nano electrohydrodynamic patterning: using a thin conductive film and a patterned template

H Nazaripoor, CR Koch, M Sadrzadeh, S Bhattacharjee - Soft Matter, 2016 - pubs.rsc.org
The influence of electrostatic heterogeneity on the electric-field-induced destabilization of
thin ionic liquid (IL) films is investigated to control spatial ordering and to reduce the lateral …

Ordered high aspect ratio nanopillar formation based on electrical and thermal reflowing of prepatterned thin films

H Nazaripoor, CR Koch, M Sadrzadeh - Journal of colloid and interface …, 2018 - Elsevier
Creating well-ordered, submicron-sized pillars have been stated as main limitation for
electrically induced patterning of nanofilms (thickness< 100 nm)[1]. In our previous works, it …

Enhanced electrically induced micropatterning of confined thin liquid films: Thermocapillary role and its limitations

H Nazaripoor, CR Koch… - Industrial & Engineering …, 2017 - ACS Publications
Electrohydrodynamic (EHD) and thermocapillary (TC) forces are used to destabilize the
interface of ultrathin liquid films and create sub-micrometer-sized features. EHD instabilities …

Parametric study on electric field-induced micro-/nanopatterns in thin polymer films

F Song, D Ju, F Gu, Y Liu, Y Ji, Y Ren, X He, B Sha… - Langmuir, 2018 - ACS Publications
Electric field-induced micro-/nanopatterns in thin polymer films, sometimes referred as
electrohydrodynamic patterning, is a promising technique to fabricate micro-/nanostructures …

Micropatterning by controlled liquid instabilities and its applications

DC Hyun, M Park, U Jeong - Journal of Materials Chemistry C, 2016 - pubs.rsc.org
Robust, reproducible patterning over large areas is essential to the fabrication of
miniaturized devices. When production and cost-efficiency are concerned, guided-assembly …