The development of lead-less perovskite materials for the photovoltaic application by Chen, Yan

“…In addition, a lead-less perovskite system with partial tin(II) substitution exemplified the important role of metallic cations in controlling the charge recombination process within perovskite films and at interfaces. In summary, the major findings presented in this thesis dissertation highlight the significance of compositional engineering of the perovskite materials to the fine-tuning of their optoelectronic properties and the performance of their associated devices. …”
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Ultrafast exciton-phonon coupling and energy transfer dynamics in quasi-2D layered Ruddlesden-Popper perovskites by Zhang, X, Zhou, J, Zheng, F, Yang, B, Jha, A, Duan, H

“…Here, we show that using advanced techniques like two-dimensional electronic spectroscopy (2DES) and transient grating (TG), we can unravel energy dynamics in hot-drop casted RPP films. Our study reveals rapid energy transfer between perovskite layers occurring within 100–220 femtoseconds and highlights how exciton-phonon coupling drives structural changes in the material. …”

Strain-tuning of nematicity and superconductivity in single crystals of FeSe by Ghini, M, Bristow, M, Prentice, JCA, Sutherland, S, Sanna, S, Haghighirad, AA, Coldea, AI

“…Our results indicate that the superconducting state is enhanced under compressive strain and suppressed under tensile strain, in agreement with the trends observed in FeSe thin films and overdoped pnictides, whereas the nematic phase seems to be affected in the opposite way by the uniaxial strain. …”

Contribution of the Hydration Force to Vesicle Adhesion on Titanium Oxide by Jackman, Joshua A., Zan, Goh Haw, Zhao, Zhilei, Cho, Nam-Joon

“…Within an experimentally significant range of conditions, the model shows that the magnitude of the repulsive hydration force strongly influences the behavior of adsorbed vesicles, thereby supporting that the hydration force makes a strong contribution to the fate of adsorbed vesicles on titanium oxide. The findings are consistent with literature reports concerning phospholipid assemblies on solid supports and nanoparticles and underscore the importance of the hydration force in influencing the behavior of phospholipid films on hydrophilic surfaces.…”
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Anchoring charge selective self-assembled monolayers for tin-lead perovskite solar cells by Zhang, Z, Zhu, R, Tang, Y, Su, Z, Hu, S, Zhang, X, Zhang, J, Zhao, J, Xue, Y, Gao, X, Li, G, Pascual, J, Abate, A, Li, M

“…Overall, this work highlights the underexplored potential of SAMs for perovskite photovoltaics and provides essential findings on the influence of their structural modification.…”

Electron transport and visible light absorption in a plasmonic photocatalyst based on strontium niobate by Wan, D. Y., Zhao, Y. L., Cai, Y., Asmara, T. C., Huang, Z., Chen, J. Q., Hong, J., Yin, Sheng Ming, Nelson, C. T., Motapothula, M. R., Yan, B. X., Xiang, D., Chi, X., Zheng, H., Chen, W., Xu, Rong, Ariando, Rusydi, A., Minor, A. M., Breese, M. B. H., Sherburne, M., Asta, M., Xu, Q-H, Venkatesan, T

“…Here we study epitaxial thin films of SrNbO3+δ and find that their bandgaps are ∼4.1 eV. …”
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Terahertz conductivity of topological surface states in Bi1.5Sb0.5Te1.8Se1.2 by Tang, Chi Sin, Xia, Bin, Zou, Xingquan, Chen, Shi, Ou, Hong-Wei, Wang, Lan, Rusydi, A., Zhu, Jian-Xin, Chia, Elbert E. M.

“…Using Terahertz Time-Domain Spectroscopy (THz-TDS), we present complex conductivity of BSTS single crystals, disentangling the surface and bulk contributions. We find that the Drude spectral weight is 1–2 orders of magnitude smaller than in other Bi-based topological insulators, and similar to that of Bi2Se3 thin films, suggesting a significant contribution of the topological surface states to the conductivity of the BSTS sample. …”
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Development of advanced Fe-based oxygen carriers for chemical looping applications by Fan, Qianwenhao

“…The main results and findings are summarized as follows. 1. We successfully synthesized oxygen carriers with nominal compositions of MgO•MgFe2O4 (1M1F) and 5MgO•MgFe2O4 (3M1F) using a simple ball-milling assisted solid-state reaction. …”
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The development and application of fish scale waste for tissue engineering applications : waste-to-resource conversion of resource resilient materials by Wang, Jun Kit

“…Overall, SHCol-conjugated PVDF films demonstrated better hemocompatibility properties as compared to other fish species, and thus is a promising material to be used for blood contacting applications. …”
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Electronic structures of topological materials studied by angle-resolved photoemission spectroscopy by He, S

“…ScN is a promising material for thermal energy conversion and an ideal substrate for growing high-quality, dislocation-free GaN films. In this project, I investigated the overall electronic structures of ScN using high-resolution ARPES . …”

Colloidal quantum dot light-emitting diode architectures for high performance by Leck, Kheng Swee

“…The lowest sheet resistance and resistivity of the radio-frequency (RF) sputtered GZO films are 12.28 Ω/□ and 9.48×10-4 Ω·cm, respectively, comparable to those of commercial grade ITO. …”
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Hybrid sensor fusion for unmanned ground vehicle by Guan, Mingyang

“…The experimental tests involving UWB/LiDAR fusion SLAM and autonomous exploration are filmed $^{2,3}$.…”
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Enhancing tensile and fatigue properties of additively manufactured alloys by post-processing heat treatment by Radhakrishnan, Jayaraj

“…The significance of pore size rather than overall pore fraction on the high cycle fatigue resistance of BJP 17-4PH alloys was highlighted. Overall, the findings in this thesis contributed to the scientific knowledge that is essential to propel AM alloy usage in industry.…”
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