https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:37110 R surface. Although very little difference was observed in the molecular orientation of the two enantiomers as observed with near-edge X-ray absorption fine structure, a large variation in the sulfur bond scission energy was measured using a high-resolution X-ray photoelectron spectroscopy thermal annealing sequence. As a result of this scission process, enantiomers of cysteine molecules completely dissociate into alaninate at temperatures separated by as much as 16 K or 0.06 eV which is one of the largest stereo effects observed on chiral metal surfaces.]]> Tue 18 Aug 2020 13:18:42 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:590 Thu 25 Jul 2013 09:10:38 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:578 Thu 25 Jul 2013 09:10:29 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:611 Thu 25 Jul 2013 09:10:24 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:7933 Sat 24 Mar 2018 10:47:57 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:6934 Sat 24 Mar 2018 08:38:15 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:6938 Sat 24 Mar 2018 08:38:13 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:994 Sat 24 Mar 2018 08:29:51 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:1179 Sat 24 Mar 2018 08:28:29 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:10424 Sat 24 Mar 2018 08:12:37 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:5265 Sat 24 Mar 2018 07:46:34 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:113 Sat 24 Mar 2018 07:43:15 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:3195 Sat 24 Mar 2018 07:21:55 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22267 R surface. Very little enantioselectivity was observed in the HR-XPS thermal desorption; however, there was a large difference in the dissociation products left on the surface between the two enantiomers. NEXAFS spectroscopy also exhibited only minor differences in the molecular adsorption of the two enantiomer layers; however, low-energy electron diffraction (LEED) images revealed significant differences in the structure of the adsorbed layers. d-alanine forms a p(2 × 3) overlayer while l-alanine forms a combination of p(1 × 2) overlayer and faceted steps oriented in the [−110] direction. Intermolecular bonding and steric effects play a significant role in these stereoselective differences by maximizing the hydrogen bonding between the molecules. This study clearly shows that single chiral tests are not adequate to ascertain the true enantioselective properties of the given system.]]> Sat 24 Mar 2018 07:17:41 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22082 Sat 24 Mar 2018 07:15:16 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23892 Sat 24 Mar 2018 07:13:39 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:23616 Sat 24 Mar 2018 07:13:27 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46422 rational choice of solvent approach as opposed to the usual trial-and-error methods. We demonstrate here that we can achieve a bicontinuous interpenetrating network with nanoscale phase separation for the chosen donor–acceptor material system poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl]:phenyl-C₆₁ butyric acid methyl ester (TQ1:PC₆₁BM) when processing from green solvent ink formulations. This structure is achieved by first calculating the Hansen solubility parameters (HSP) of the donor and acceptor materials, followed by careful choice of solvents with selective relative solubilities for the two materials based on the desired order of precipitation necessary for forming a nanostructured interdigitated network morphology. We found that the relative distances in Hansen space (R_a) between TQ1 and the primary solvent, on the one hand, and PC₆₁BM and the primary solvent, on the other hand, could be correlated to the donor–acceptor morphology for the formulations based on the solvents d-limonene, anisole, and 2-methyl anisole, as well as the halogenated reference solvent o-dichlorobenzene. This nanostructured blend film morphology was characterised with scanning transmission X-ray microscopy (STXM) and transmission electron microscopy (TEM), and the film surface composition was analysed by near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Hansen solubility theory, based on solution thermodynamics, has been used and we propose an HSP-based method that is a general platform for the rational design of ink formulations for solution-based organic electronics, in particular facilitating the green solvent transition of organic photovoltaics. Our results show that the bulk heterojunction morphology for a donor–acceptor system processed from customised solvent mixtures can be predicted by the HSP-based method with good reliability.]]> Mon 29 Jan 2024 18:05:22 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34701 Mon 15 Apr 2019 09:12:07 AEST ]]>