Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Rony Saha"'
Publikováno v:
AIMS Materials Science, Vol 10, Iss 2, Pp 342-355 (2023)
Ferroelectricity is demonstrated for the first time in Si(100)/SiO2/TiN/HfO2-ZrO2/TiN stack using pulsed laser deposition (PLD) and the effects of temperatures, partial oxygen pressures, and thickness for the stabilization of the ferroelectric phase
Externí odkaz:
https://doaj.org/article/478471eddd644af9b37494af9f6d26ae
Autor:
Anupam K.C., Anwar Siddique, Jonathan Anderson, Rony Saha, Chhabindra Gautam, Anival Ayala, Chris Engdahl, Mark W. Holtz, Edwin L. Piner
Publikováno v:
SN Applied Sciences, Vol 4, Iss 8, Pp 1-16 (2022)
Abstract A multistep deposition technique is developed to produce highly oriented diamond films by hot filament chemical vapor deposition (HFCVD) on Si (111) substrates. The orientation is produced by use of a thin, 5–20 nm, Ni interlayer. Annealin
Externí odkaz:
https://doaj.org/article/e10316370748467cac1ebe7c7a9641a6
NISHASH: A reasonable cost-effective mechanical ventilator for COVID affected patients in Bangladesh
Publikováno v:
Heliyon, Vol 8, Iss 5, Pp e09400- (2022)
COVID-19 has elapsed all over the world with massive losses which indicate the lack of availability of medical equipment during the pandemic such as a ventilator. This is exemplified by the densely populated country Bangladesh who unable to maintain
Externí odkaz:
https://doaj.org/article/aed41661e29f422bbbd0b7106ef519cb
Autor:
Prabesh Gyawali, Rony Saha, Sineth G. Kodikara, Ruipeng Li, Masafumi Fukuto, James T. Gleeson, Gregory P. Smith, Noel A. Clark, Antal Jakli, Hamza Balci, Samuel Sprunt
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033046 (2022)
The occurrence of a smectic-B (Sm-B) phase is demonstrated in concentrated aqueous solutions of “gapped” DNA constructs consisting of fully paired duplexes bridged by a flexible, unpaired strand of nucleotides. The Sm-B phase, identified by small
Externí odkaz:
https://doaj.org/article/e15103cecb784c189cc7f9f510736218
Publikováno v:
Crystals, Vol 10, Iss 8, p 652 (2020)
We present small-angle X-ray scattering, polarized optical microscopy and electric current measurements of a sulfur-containing bent-core liquid crystal material for characterization of the layer and director structures, thermally and electrically dri
Externí odkaz:
https://doaj.org/article/0c15cec874b24cafaf98985b0ea094f8
Autor:
Perera, Kelum, Nepal, Rony Saha Pawan, Dharmarathna, Rohan, Hossain, Md Sakhawat, Mostafa, Md, Adaka, Alex, Waroquet, Ronan, Twieg, Robert J., Jakli, Antal
Publikováno v:
Soft Matter, 2023, 19, 347
The isotropic to ferroelectric nematic liquid transition had been theoretically studied over one hundred years ago, but its experimental studies are rare. Here we present polarizing optical microscopy studies and theoretical considerations of ferroel
Externí odkaz:
http://arxiv.org/abs/2209.09363
Autor:
Rony Saha, Pawan Nepal, Chenrun Feng, Md Sakhawat Hossain, Masafumi Fukuto, Ruipeng Li, James T. Gleeson, Samuel Sprunt, Robert J. Twieg, Antal Jákli
Publikováno v:
Liquid Crystals. 49:1784-1796
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8810ddf6c1e76d9fa92bca74512e11df
https://doi.org/10.1080/02678292.2022.2069297
https://doi.org/10.1080/02678292.2022.2069297
Autor:
Kelum Perera, Rony Saha, Pawan Nepal, Rohan Dharmarathna, Md Sakhawat Hossain, Md Mostafa, Alex Adaka, Ronan Waroquet, Robert J. Twieg, Antal Jákli
The isotropic to ferroelectric nematic liquid transition had been theoretically studied over one hundred years ago, but its experimental studies are rare. Here we present polarizing optical microscopy studies and theoretical considerations of ferroel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0527502969fae4e64c0323312260874e
http://arxiv.org/abs/2209.09363
http://arxiv.org/abs/2209.09363
Autor:
Rony Saha, Christopher J. Welch, Chenhui Zhu, J. T. Gleeson, Jun Feng, Georg H. Mehl, Samuel Sprunt, Chenrun Feng, Antal Jakli
Publikováno v:
Physical Chemistry Chemical Physics. 23:4055-4063
The helical pitch formed by organic molecules, such as the α-helix of proteins, usually requires hydrogen bonding between chiral units and long-range positional order. It was recently found that certain liquid crystal oligomers can have a twist-bend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a89e0522f3cd6a91417fb6c3bbf57e3c
https://doi.org/10.1039/d0cp06633h
https://doi.org/10.1039/d0cp06633h
Autor:
Mark Holtz, Raju Ahmed, Anwar Siddique, Rony Saha, Chris Engdahl, Edwin L. Piner, Jonathan Anderson
Publikováno v:
Journal of Materials Science: Materials in Electronics. 31:8597-8606
The effect of precursor stoichiometry is reported on morphology, phase purity, and texture formation of polycrystalline diamond films. The diamond films were deposited on 100-mm Si (100) substrates using hot filament chemical vapor deposition at subs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b921bb6a0b355d10091ebba38d98e36b
https://doi.org/10.1007/s10854-020-03395-7
https://doi.org/10.1007/s10854-020-03395-7