A5012029695- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Advanced Battery Materials and Technologies
- Copper-based nanomaterials and applications
- Advanced battery technologies research
- Solid-state spectroscopy and crystallography
- Advancements in Battery Materials
- Advanced Memory and Neural Computing
- Supercapacitor Materials and Fabrication
- MXene and MAX Phase Materials
- Crystallization and Solubility Studies
- Gas Sensing Nanomaterials and Sensors
- X-ray Diffraction in Crystallography
- Organic Light-Emitting Diodes Research
- Transition Metal Oxide Nanomaterials
- Iron oxide chemistry and applications
- Advanced Battery Technologies Research
- ZnO doping and properties
- 2D Materials and Applications
- Organic Electronics and Photovoltaics
- Ga2O3 and related materials
- Advanced Nanomaterials in Catalysis
The University of Queensland
2015-2024
Brisbane School of Theology
2016-2020
Institute of Bioengineering and Nanotechnology
2016-2020
Queensland University of Technology
2019
Sejong University
2015
Abstract 2D halide perovskites have recently been recognized as a promising avenue in perovskite solar cells (PSCs) terms of encouraging stability and defect passivation effect. However, the efficiency (less than 15%) ultrastable Ruddlesden–Popper PSCs still lag far behind their traditional 3D counterparts. Here, rationally designed 2D‐3D stacking‐layered architecture by situ growing PEA 2 PbI 4 capping layers on top film, which drastically improves without compromising high performance, is...
The CH3 NH3 PbI3- x Clx organic-inorganic hybrid perovskite material demonstrates remarkable resistive switching behavior, which can be applicable in random access memory devices. simply designed Au/CH3 /FTO structure is fabricated by a low-temperature, solution-processable method, exhibits bipolar and nonvolatile properties.
A new method based on one-step solvothermal reaction is demonstrated to synthesize ultrathin Ni-Co layered double hydroxide (LDH) nanosheets, which grow directly a flexible carbon fiber cloth (NiCo-LDH/CFC). Through using 2-methylimidazole as complex and methanol solvent, the as-prepared NiCo-LDH/CFC shows (003) facet preferential growth an expanded interlayer spacing structure, resulting in unique 3D porous nanostructure with thickness of nanosheets around 5-7 nm that high energy storage...
Metal halide perovskites have been brought to the forefront of research focus in solution‐processable photovoltaics, with device efficiency swiftly surging over 22% past few years. The state‐of‐the‐art metal that intensively investigated include toxic lead, which potentially hampers their commercialization process. To address this toxicity issue, intensive recent effort has devoted developing low‐toxic and derivatives for photovoltaic applications. Herein, progress achieved so far addressing...
A vertically grown hematite nanosheet film modified with Ag nanoparticles (NPs) and Co–Pi cocatalyst exhibits a remarkably high photocurrent density of 4.68 mA cm−2 at 1.23 V versus RHE. The NPs leads to significantly improved light harvesting better charge transfer, while the facilitates highly stable oxygen evolution process. This photoelectrode design provides more efficient photoelectrochemical systems for solar-energy conversion.
Abstract Rechargeable aluminum‐ion batteries (AIBs) are attractive new generation energy storage devices due to its low cost, high specific capacity, and good safety. However, the lack of suitable electrode materials with capacity enhanced rate performance makes it difficult for real applications. Herein, preparation 3D reduced graphene oxide‐supported SnS 2 nanosheets hybrid is reported as a type cathode material AIBs. The resultant demonstrates one highest capacities 392 mAh g −1 at 100 mA...
Atomic co-catalysts offer high potential to improve the photocatalytic performance, of which preparation with earth-abundant elements is challenging. Here, a new molten salt method (MSM) designed prepare atomic Ni co-catalyst on widely studied TiO2 nanoparticles. The liquid environment and space confinement effect leads dispersion ions TiO2, while strong polarizing force provided by promotes formation Ni−O bonds. Interestingly, atoms are found facilitate oxygen vacancies (OV) during MSM...
Mixed halide perovskites CH3NH3PbBr3−xClx (x = 0.6–1.2) with different compositions of halogens exhibit drastically changed optical properties. In particular, the thin films prepared these demonstrate extraordinary photoluminescence emission intensities and prolonged recombination lifetimes up to 446 ns, which are desirable for light emitting photovoltaic applications.
A new type of boron-doped graphitic carbon nitride (B-g-C3N4) nanosheets was prepared by a benign one-pot thermal polycondensation process. Systematic studies revealed that B-doping amount 1 at% into g-C3N4 (1at%B-g-C3N4) showed the best photocatalytic H2 evolution activity 1880 μmol h-1 g-1 under visible light irradiation (>400 nm), which is more than 12 times pristine bulk. Detailed characterizations high performance could be attributed to combination band structure engineering and...
The evolution of modern society demands sustainable rechargeable lithium-ion batteries (LIBs) with higher capacity and improved safety standards. High voltage Ni-rich layered transition metal oxides (i.e., LiNi1-x-yCoxMnyO2, NCM) have emerged as one the most promising cathode materials in meeting this demand. However, instability NCMs cathodes presents challenges large-scale commercialization. This review examines energy storage mechanism, e.g., possible (electro)chemical reactions,...
Abstract Water molecules, which act as both solvent and reactant, play critical roles in photocatalytic reactions for methanol conversion. However, the influence of water on adsorption desorption liquid products, are two essential steps that control performance photocatalysis, has been well under‐explored. Herein, we reveal role heterogeneous processes conversion platinized carbon nitride (Pt/C 3 N 4 ) model photocatalyst. In situ spectroscopy techniques, isotope effects, computational...
Memristive devices such as resistive switching memories and artificial synapses have emerged promising technologies to overcome the technological challenges associated with von Neumann bottleneck. Recently, lead halide perovskites drawn substantial research attention candidate material for memristors due their unique optoelectronic properties, solution processability, mechanical flexibility. However, toxicity of lead‐containing species has raised major concerns health environment, which...
A simple organolead perovskite based device Ag/CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3−x</sub>Cl<sub>x</sub>/FTO exhibits both digital and analog switching memory features.
Organic–inorganic metal halide perovskites with three‐dimensional (3D) crystal structures have attracted tremendous attention due to their successful demonstrations in varying optoelectronic applications, particularly photovoltaics (PV). Despite the rapid progress achieving high performance devices, long‐term instability and lead toxicity 3D are still two major challenges hindering steps toward commercialization. To overcome these issues, a series of low‐dimensional derivatives investigated,...
Mesoscopic perovskite solar cells using stable CH3 NH3 PbI2 Br as a light absorber and low-cost poly(3-hexylthiophene) (P3HT) hole-transporting layer were fabricated, power conversion efficiency of 6.64 % was achieved. The partial substitution iodine with bromine in the led to remarkably prolonged charge carrier lifetime. Meanwhile, replacement conventional thick spiro-MeOTAD thin P3HT has significantly reduced fabrication cost. retained their photovoltaic performance well when they exposed...
Abstract Lead‐free double perovskite Cs 2 AgBiBr 6 has attracted increasing research interest in addressing the toxicity and stability challenges confronted by lead halide perovskites. While most of studies on this material have been focusing photovoltaic performance potential applications, its long‐term degradation mechanism are well under‐explored. Herein, high‐quality thin‐films developed for lead‐free solar cells with a decent efficiency 1.91%. By exploring ambient these devices, it is...
Abstract Solar hydrogen conversion represents a clean and economic approach to addressing global energy environmental issues, for which efficient photocatalysts are heavily pursued. Lead halide perovskites promising candidates phtocatalysts in solar generation due their attractive properties light absorption, photogenerated charge transportation, utilization. However, photocatalytic applications of lead limited owing poor stability the presence water or other polar solvent environment. This...