Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Ankit Gujral"'
Publikováno v:
Soft Matter. 15:7590-7595
This work was supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, Award DE-SC0002161. The authors gratefully acknowledge use of facilities and instrumentation supported by NSF thr
Autor:
Lian Yu, Mark Ediger, Heike Hofstetter, Ankit Gujral, Kushal Bagchi, Chengbin Huang, Niko Van den Brande
Publikováno v:
Crystal Growth & Design. 18:5800-5807
Glasses of a common OLED host material, 4,4′-bis(N-carbazolyl)-1,1′-biphenyl or CBP, were prepared by vapor deposition at various substrate temperatures. Consistent with previous work, the substrate temperature during deposition controls the anis
Publikováno v:
Current Opinion in Solid State and Materials Science. 22:49-57
While the last decades have seen considerable efforts to control molecular packing in organic crystals, the idea of controlling packing in organic glasses is relatively unexplored. Glasses have many advantageous properties that crystals lack, such as
Publikováno v:
The Journal of Physical Chemistry B. 121:2350-2358
It has recently been established that physical vapor deposition (PVD) can produce organic glasses with enhanced kinetic stability, high density, and anisotropic packing, with the substrate temperature during deposition (Tsubstrate) as the key control
Autor:
Ankit Gujral, Chengbin Huang, Michael F. Toney, Michael L. Chabinyc, Mark Ediger, Kathryn O'Hara, Jaritza Gomez, Lian Yu, Jing Jiang
Publikováno v:
Chemistry of Materials. 29:849-858
Glasses of a model smectic liquid crystal-forming molecule, itraconazole, were prepared by vapor deposition onto substrates with temperatures ranging from Tsubstrate = 0.78Tg to 1.02Tg, where Tg (=330 K) is the glass transition temperature. The films
Publikováno v:
The journal of physical chemistry letters. 10(13)
We show that deposition rate substantially affects the anisotropic structure of thin glassy films produced by physical vapor deposition. Itraconazole, a glass-forming liquid crystal, was deposited at rates spanning 3 orders of magnitude over a 25 K r
Autor:
Mark Ediger, Kushal Bagchi, Ankit Gujral, Juan J. de Pablo, Lian Yu, Nicholas E. Jackson, Michael F. Toney, Chengbin Huang
Publikováno v:
The journal of physical chemistry letters. 10(2)
Anisotropic molecular packing is a key feature that makes glasses prepared by physical vapor deposition (PVD) unique materials, warranting a mechanistic understanding of how a PVD glass attains its structure. To this end, we use X-ray scattering and
Publikováno v:
Soft Matter. 12:2942-2947
Physical vapor deposition (PVD) has been used to prepare glasses of itraconazole, a smectic A liquid crystal. Glasses were deposited onto subtrates at a range of temperatures (Tsubstrate) near the glass transition temperature (Tg), with Tsubstrate/Tg
Publikováno v:
Physical Review Letters. 120
Liquid crystals (LCs) are known to undergo rapid ordering transitions with virtually no hysteresis. We report a remarkable counterexample, itraconazole, where the nematic to smectic transition is avoided at a cooling rate exceeding 20 K/s. The smecti
Autor:
Jaritza Gomez, Harald Bock, Ankit Gujral, Shigang Ruan, Michael F. Toney, Lian Yu, Mark Ediger
Publikováno v:
Chemistry of Materials
Chemistry of Materials, American Chemical Society, 2017, 29 (21), pp.9110-9119. ⟨10.1021/acs.chemmater.7b02852⟩
Chemistry of Materials, American Chemical Society, 2017, 29 (21), pp.9110-9119. ⟨10.1021/acs.chemmater.7b02852⟩
International audience; Anisotropic molecular packing, particularly in highly ordered liquid crystalline arrangements, has the potential for optimizing performance in organic electronic and optoelectronic applications. Here we show that physical vapo
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eb1fe9d87ba8ec52ed7a18582f7fe99
https://hal.archives-ouvertes.fr/hal-01709577
https://hal.archives-ouvertes.fr/hal-01709577