A5016183084- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Thin-Film Transistor Technologies
- Advanced Sensor and Energy Harvesting Materials
- Organic Light-Emitting Diodes Research
- Supercapacitor Materials and Fabrication
- Semiconductor materials and interfaces
- Advanced battery technologies research
- Gas Sensing Nanomaterials and Sensors
- Advanced materials and composites
- Metal Alloys Wear and Properties
- Nanowire Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Advancements in Battery Materials
- Electrospun Nanofibers in Biomedical Applications
- Advanced machining processes and optimization
- Advanced Machining and Optimization Techniques
- Injection Molding Process and Properties
- Erosion and Abrasive Machining
Charles Darwin University
2021-2025
Periyar University
2021
Curtin University Sarawak
2018-2020
UNSW Sydney
2015-2018
Agency for Science, Technology and Research
2011-2014
National University of Singapore
2011-2014
University of South Australia
2014
Institute of Materials Research and Engineering
2011-2013
Naver (South Korea)
2012
Factors and governing mechanisms influencing the open circuit voltage – a key determinant for improving device performance efficiency.
Electrospinning is one of the most accessed nanofabrication techniques during last three decades, attributed to its viability for mass production continuous nanofibers with superior properties from a variety polymers and polymeric composites. Large investments various sectors have pushed development electrospinning industrial setups capable producing in millions kilograms per year several practical applications. Herein, lessons learned over decades research, innovations, designs on products...
Flower shaped nanostructures of an architypical transparent conducting oxide, SnO2, have been synthesized by electrospinning technique for the first time precisely controlling precursor concentration in a polymeric solution. The flowers were made up nanofibrils diameter ∼70–100 nm, which turn consisted linear arrays single crystalline nanoparticles size 20–30 nm. Mott–Schottkey analysis shows that order magnitude higher electron density compared with fibers despite their chemical similarity....
Organic–inorganic hybrid perovskite solar cells (PSCs) have emerged as a new class of optoelectronic semiconductors that revolutionized the photovoltaic research in recent years. The present numerous advantages include unique electronic structure, bandgap tunability, superior charge transport properties, facile processing, and low cost. Perovskite demonstrated unprecedented progress efficiency its architecture evolved over period last 5–6 years, achieving high power conversion about 22%...
The present review rationalizes the significance of metal oxide semiconductor (MOS) interfaces in field photovoltaics and photocatalysis. This perspective considers role interface science energy harvesting using organic (OPVs) dye-sensitized solar cells (DSSCs). These include large surface area junctions between photoelectrodes dyes, interlayer grain boundaries within photoanodes, photoactive layers top bottom contacts. Controlling collection minimizing trapping charge carriers at these is...
Organic solar cells possess multiple desirable traits, such as low cost, flexibility, and semitransparency, which opens up potential avenues unavailable to other technologies, a prime example of this being window applications. For specific application, delicate balance between the transmission light through device power conversion efficiency (PCE), dependent on amount absorbed, must be optimized. Here, we report high-efficiency semitransparent based novel fullerene-free material system....
Abstract Heterojunction solar cells of p ‐type cupric oxide (CuO) and n silicon (Si), ‐CuO/ ‐Si, have been fabricated using conventional sputter rapid thermal annealing techniques. Photovoltaic properties with an open‐circuit voltage ( V oc ) 380 mV, short circuit current J sc 1.2 mA/cm 2 , a photocurrent 2.9 were observed for the cell annealed at 300 °C 1 min. When duration was increased, but found to reduce because degradation interface quality. An improvement in resulting record value 509...
The current work reports the lithium (Li) doping of a low-temperature processed zinc oxide (ZnO) electron transport layer (ETL) for highly efficient, triple-cation-based MA0.57FA0.38Rb0.05PbI3 (MA: methylammonium, FA: formamidinium, Rb: rubidium) perovskite solar cells (PSCs). Lithium intercalation in host ZnO lattice structure is dominated by interstitial phenomena, which passivates intrinsic defects film. In addition, Li also downshifts Fermi energy position Li-doped ETL 30 meV,...
Solution processed thin‐film solar technologies, such as organic photovoltaics, and more recently, perovskite cells, may provide low‐cost electricity generation. These technologies suffer from insufficient light absorption due to thin absorber layers. Plasmonic nanostructures have been incorporated in both initially with the aim of increasing absorption, but reports also shown significant enhancement electrical characteristics devices. Enhancement mechanisms that are facilitated by plasmonic...
Abstract With their high‐surface‐to‐volume ratio, nanofibers have been postulated to increase interactions between nanofibrous materials and targeted substrates, which are helpful overcome many obstacles enhance the efficiency in a diverse number of applications. Over past decade, studies published on fabrication applications various fields. In this review, novel biological, chemical, electrical characteristics as well recent status achievements medicine, chemistry, electronics analyzed. It...
This article demonstrates improvements in the operational stability of organic solar cells (OSCs) by taking advantage relationship between oxygen stoichiometry and conductivity nanostructured metal oxide semiconductors (n-MOS). OSCs inverted device configuration ITO/Ca/P3HT:PCBM/MoO3/Ag were employed present study. A high degree defects introduced hole-conducting MoO3 layer annealing devices under vacuum (≥10(-5) mbar) for nominal temperature (120 °C) time (10 min). The above had much higher...
Polymer solar cells are a promising technology for the commercialization of low cost, large scale organic cells. With evolution high efficiency (>13%) non-fullerene polymer cells, stability has become crucial parameter to be considered. Among several degradation mechanisms burn-in photo-degradation is relatively less studied. Herein, we present first systematic study novel PBDB-T:ITIC fullerene-free The thermally treated and as-prepared were exposed continuous 1 sun illumination 5 hours....
Abstract Ionogels have established themselves as an intriguing type of composites, owing to their distinctive properties, including superior thermal stability, non‐flammability, tunable electrochemical stability window, and high ionic conductivity. Hybrid materials based on liquids (ionogels) are held together by interfaces arising out intermolecular interactions, electrostatic, van der Waals, solvophobic, steric, hydrogen bonding. The within the liquid (ILs) its multifaceted interplay with...
High-chromium white iron (HCWI) alloys are often used in industries such as mining which require a high wear resistance. Whilst nitrogen is known good austenitic stabiliser, the effects of on corrosion properties for welded HCWI have not been studied. Chromium hardfacing were deposited via gas metal arc welding using shielding at flow rates 5 L/min, 10 and 15 L/min. The behaviour these modified was studied electrochemical techniques potentiodynamic measurements impedance spectroscopy. Higher...