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461
Investigating the charge separation and transport in iron based photoanodes for solar-driven water splitting
Published 2016“…To inhibit the surface recombination probability, we employed surface passivation technique by coating hematite nanorods with a very thin Atomic Layer Deposition (ALD) grown TiOx overlayer which resulted in manifold enhancement in its performance. Owing to inability of Fe2O3 to reduce water due to its lower conduction band level than the water reduction potential, iron based photoanodes based on Fe-Ti-O systems were explored. …”
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Thesis -
462
Fabrication and characterization of Algan/Gan high electron mobility transistors on silicon
Published 2016“…Examples of these limitations can be seen in the power density and clock speed of silicon CMOS processors, where it hits saturation at about 100 W/cm2 and 4 GHz respectively. Owing to such limitations, the margin of improvement achieved by transistor scaling is no longer substantial. …”
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Thesis -
463
Brain computer interface for post-stroke motor rehabilitation
Published 2021“…In BCI systems, identification of users' intentions is achieved by classifying their brain activation patterns using machine learning algorithms. However, owing to the challenging nature of the brain signals, low classification accuracy remains one of the most important challenges faced by BCI. …”
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Thesis-Doctor of Philosophy -
464
A Brewster route to Cherenkov detectors
Published 2022“…Here, we propose a different paradigm for Cherenkov detectors that utilizes the broadband angular filter made from stacks of variable onedimensional photonic crystals. Owing to the Brewster effect, the angular filter is transparent only to Cherenkov photons from a precise incident angle. …”
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Journal Article -
465
Synthesis of densely functionalized pyrroles from unprotected carbohydrates
Published 2023“…Carbohydrates are important feedstock owing to their huge natural abundance, cheap price, and interesting properties. …”
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Thesis-Doctor of Philosophy -
466
High-quality semiconductor fibres via mechanical design
Published 2024“…As semiconductors are the critical component that governs device performance, the selection, control and engineering of semiconductors inside fibres are the key pathways to enabling high-performance functional fibres. However, owing to stress development and capillary instability in the high-yield fibre thermal drawing, both cracks and deformations in the semiconductor cores considerably affect the performance of these fibres. …”
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Journal Article -
467
Solution based synthesis of Cu2ZnSnS4 nanoparticles and thin films for solar cell application
Published 2014“…Quaternary chalcogenide compound Cu2ZnSnS4 (CZTS) is a promising absorber material for low-cost thin film solar cells owing to the abundance of its constituents, suitable band-gap and high absorption coefficient. …”
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Thesis -
468
GPU-based commonsense reasoning for real-time query answering and multimodal analysis
Published 2017“…In recent years, Graphics Processing Units (GPUs) have become popular computing devices owing to their massive parallel execution power. …”
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Thesis -
469
HiPIMS deposition of VO2 thermochromic coating for enhanced optical properties
Published 2022“…The Greta-oto butterfly has transparent wings with extraordinary omnidirectional anti-reflection behaviour, owing to the unusual nanostructures with random height and space distribution on its wing surface which are difficult to reproduce en masse. …”
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Thesis-Doctor of Philosophy -
470
Investigation of charge transport in nanofiber based solar cells
Published 2015“…Dye sensitized solar cells (DSCs) have garnered a lot of attention owing to their ease of fabrication, low manufacturing costs and good device stability. …”
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Thesis -
471
Efficient circuit-designs using spintronic devices
Published 2019“…Recently, a great deal of scientific endeavour has been devoted to developing spin-based neuromorphic platforms owing to the ultra-low-power benefits offered by spin devices and the inherent correspondence between spintronic phenomena and the desired neuronal, synaptic behaviour. …”
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Thesis -
472
Interface engineering for organic−inorganic hybrid perovskite solar cells
Published 2022“…As can be seen in the second work, passivation at the ETL/OIHP interface using the heterogeneous ETL showed significant improvement in device reproducibility although further enhancements in device stability and efficiency are desirable. Owing to ionic and soft bonding characteristics of OIHP materials, defects such as under−coordinated ions and dangling bonds tend to concentrate at the OIHP/HTL interface. …”
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Thesis-Doctor of Philosophy -
473
Neural combinatorial optimization: from routing to integer programming
Published 2022“…However, most COPs are difficult to solve exactly owing to their NP-hardness. Heuristics thus are often leveraged as a popular class of optimization methods to solve COPs. …”
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Thesis-Doctor of Philosophy -
474
Clustering-based solutions for energy efficiency, adaptability and resilience in IoT networks
Published 2024“…IoT devices must be adaptable to these dynamic changes and maintain a stable load on the network. Owing to their low- cost nature and susceptibility to damage, tampering or battery exhaustion, some devices may become faulty leading to unexpected behavior. …”
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Thesis-Doctor of Philosophy -
475
Exploiting LoRaWAN for efficient and resilient IoT networks
Published 2020“…The greatly increased pervasive connectivity owing to the deployment of these IoT networks will foster the next-generation Internet-based innovations. …”
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Thesis-Doctor of Philosophy -
476
Power system adequacy and cost/worth assessment incorporating virtual power plants
Published 2018“…Indiscriminate addition of DERs on the demand side, however, poses a number of visibility and security related challenges for the system operators, primarily owing to the modest capacities most DERs possess (a few kW to a few MW) coupled with the inherent intermittencies associated with renewable resources. …”
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Thesis -
477
Robust and efficient deep learning methods for vision-based action recognition
Published 2021“…Although various image DA approaches have been proposed in recent years, there is limited research towards Video Domain Adaptation (VDA), owing to the complexity in adapting the different modalities of features in videos, which includes both temporal features and spatiotemporal correlation features. …”
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Thesis-Doctor of Philosophy -
478
2DEG enhancement via epilayer stress engineering in AlN/GaN/AlN heterostructure
Published 2021“…The two-dimensional electron gas (2DEG) at the AlGaN/GaN heterointerface can be achieved without doping owing to their polarization properties. Despite their promising device performances for high power and high-frequency applications, they are limited by issues such as self-heating, buffer leakage and reliability. …”
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Thesis-Doctor of Philosophy -
479
Exploring the stability and dynamics of nanobubbles
Published 2017“…These nanobubbles appear not to be stabilised by the line pinning or oversaturation that sustain surface nanobubbles. …”
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Thesis -
480
Effect of dopant solubility and excess doping on the superconducting properties of doped Nb3Sn prepared by field assisted sintering technique
Published 2024“…The Y<sub>2</sub>O<sub>3</sub> particles was also considered as a possible cause of pinning down of grain boundaries in addition to NbO leading to grain refinement through Zener pinning. …”
Journal article