https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46491 Thu 24 Nov 2022 12:01:02 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19348 Sat 24 Mar 2018 07:52:11 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28349 g) and amorphous nature, compared to the commonly applied semicrystalline polymer poly(3-hexylthiophene) (P3HT). This study reports the optimisation of TQ1:PC₇₁BM (phenyl C₇₁ butyric acid methyl ester) NP-OPV device performance by the application of mild thermal annealing treatments in the range of the T_g (sub-T_g and post-T_g), both in the active layer drying stage and post-cathode deposition annealing stage of device fabrication, and an in-depth study of the effect of these treatments on nanoparticle film morphology. In addition, we report a type of morphological evolution in nanoparticle films for OPV active layers that has not previously been observed, that of PC₇₁BM nano-pathway formation between dispersed PC₇₁BM-rich nanoparticle cores, which have the benefit of making the bulk film more conducive to charge percolation and extraction.]]> Sat 24 Mar 2018 07:25:10 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44363 Mon 29 Jan 2024 18:53:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48452 Mon 29 Jan 2024 18:51:18 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44155 C3N5 > g-C3N4. Bader charge analysis shows that the charge transferred from lithium and sodium ions is more distributed across the hybrid material as compared to the pure C3N5. It is experimentally found that the optimized mesoporous C3N5/MoS2 hybrid shows a 3.86 and 10.80 times increase in reversible capacities as compared to mesoporous g-C3N4 for lithium and sodium ion batteries, respectively. Based on the comparative mechanism studies, the limited intercalation kinetics and surface-derived ion storage hinder the application of the mesoporous g-C3N4 in lithium and sodium ion batteries, respectively. The synthesized mesoporous C3N5/MoS2 hybrids with mesopore channels, expanded gallery height and desired ion adsorption energies provide insights to improve the electrode performances of carbon nitrides-based materials for lithium and sodium ion batteries.]]> Mon 29 Jan 2024 17:43:09 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34851 4Ti₄O₁₅ as a robust photocatalyst for efficient CO₂ reduction. In the absence of co-catalysts and sacrificial agents, the annealed SrBi₄Ti₄O₁₅ nanosheets with the strongest ferroelectricity cast a prominent photocatalytic CO₂ reduction activity for CH₄ evolution with a rate of 19.8 μmol h⁻¹ g⁻¹ in the gas-solid reaction system, achieving an apparent quantum yield (AQY) of 1.33% at 365 nm, outperforming most of the reported photocatalysts. The ferroelectric hysteresis loop, piezoresponse force microscopy (PFM) and ns-level time-resolved fluorescence spectra uncover that the outstanding CO₂ photoreduction activity of SrBi₄Ti₄O₁₅ mainly stems from the strong ferroelectric spontaneous polarization along [100] direction, which allows efficient bulk charge separation along opposite direction. DFT calculations also disclose that both electrons and holes show the smallest effective masses along a axis, verifying the high mobility of charge carriers facilitated by ferroelectric polarization. This study suggests that the traditionally semiconducting ferroelectric materials that have long been studied as ferro/piezoelectric ceramics now may be powerfully applied in the photocatalytic field to deal with the growing energy crisis.]]> Mon 08 Nov 2021 09:54:09 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46953 Fri 09 Dec 2022 15:31:44 AEDT ]]>