A5059756049- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Thin-Film Transistor Technologies
- Digital Transformation in Industry
- IoT and Edge/Fog Computing
- Nanowire Synthesis and Applications
- Big Data and Business Intelligence
- Gas Sensing Nanomaterials and Sensors
- Nonlinear Optical Materials Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Graphene research and applications
- Blockchain Technology Applications and Security
- solar cell performance optimization
- Organic Light-Emitting Diodes Research
- Perovskite Materials and Applications
- ZnO doping and properties
- Cloud Computing and Resource Management
- Satellite Communication Systems
- Laser Material Processing Techniques
- Carbon Nanotubes in Composites
- Nanomaterials and Printing Technologies
- Smart Cities and Technologies
- Laser-Ablation Synthesis of Nanoparticles
- Manufacturing Process and Optimization
- Transition Metal Oxide Nanomaterials
Aarhus University
2018-2025
University of Surrey
2010-2018
Technical University of Denmark
2015-2018
Guildford Hospital
2014-2015
ZnO nanostructures with different morphologies (nanowires, nanodisks, and nanostars) were synthesized hydrothermally. Gas sensing properties of the as-grown investigated under thermal UV activation. The performance nanodisk gas sensor was found to be superior that other (Sg ∼ 3700% 300 ppm ethanol response time recovery 8 13 s). enhancement in sensitivity is attributed surface polarities structures on nanoscale. Furthermore, selectivity sensors can achieved by controlling intensity used...
Recent revolutionary advancements in the services as observed with use cases of Industry 5.0, consumer electronics 2.0/smart devices 2.0, digital healthcare ecosystem, Internet-of-Things (IoT), advanced finance/currency, and Non-Terrestrial Network (NTN) expansion, to name a few, have resulted spectacular growth number wireless-connected devices. Subsequently, this has drastically increased demands for network capacity, channel reliability, privacy, security provisions. Despite that, 5 th...
Efficient prototyping of floor plan layouts is a crucial element in the early stage building construction cycle. This study ameliorates major difficulties associated with use generative adversarial networks (GANs) for automating high-resolution generation: vast computational and data requirements, training instability, problematic result evaluation. A stable, resource-efficient multi-module GAN-stack pipeline presented comprising pre-processing (denoising, down-sampling), generation,...
Recent developments in solution processable single junction polymer solar cells have led to a significant improvement power conversion efficiencies from ∼5% beyond 9%. While much of the initial efficiency improvements were driven through judicious design donor polymers, it is engineering device architectures incorporation inorganic nanostructures and better processing that has continued gains. Inorganic nano-components such as carbon nanotubes, graphene its derivatives, metal nanoparticles...
Flexible, fullerene-free organic solar cells with an efficiency exceeding 2% were fabricated by a roll-coating process and compared fullerene-based devices.
Solution processed core–shell nano-structures of metal oxide-reduced graphene oxide (RGO) are used as improved electron transport layers (ETL), leading to an enhancement in photocurrent charge PCDTBT:PC70BM for both single cell and module photovoltaic devices. As a result, the power conversion efficiency devices with RGO-metal oxides ETL increases 8% cells 20%
We report new solution processable electron transport layers for organic photovoltaic devices based on composites of metal oxides and reduced graphene oxides. Low bandgap polymer cells fabricated using these nanohybrid display power conversion efficiencies in the range 7.4–7.5% which is observed to be an improvement over conventional oxide or thermally evaporated layers. This efficiency enhancement driven mainly by improvements short circuit current (from ∼14.8 ∼15.0 mA cm−2) as well fill...
This paper investigates digital traceability technologies taking careful consideration of the company’s needs to improve products at production GPV Group as well efficiency and added value in their cycles. is primarily an electronics manufacturing service company (EMS) that manufactures electronic circuit boards, addition big metal mechanics sites. The aims embrace next generation IoT such internal supply chain sites order stay compatible with Industry 4.0 requirements. In this paper,...
Recent revolutionary advancements in the services as observed with use cases of Industry 5.0, consumer electronics 2.0/smart devices 2.0, digital healthcare ecosystem, Internet-of-Things (IoT), advanced finance/currency, and Non-Terrestrial Network (NTN) expansion, to name a few, have resulted spectacular growth number wireless-connected devices. Subsequently, this has drastically increased demands for network capacity, channel reliability, privacy, security provisions. Despite that, 5 <sup...
Graphene oxide (GO) is becoming increasingly popular for organic electronic applications. We present large active area (0.64 cm2), solution processable, poly[[9-(1-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophenediyl]:[6,6]-Phenyl C71 butyric acid methyl ester (PCDTBT:PC70BM) photovoltaic (OPV) solar cells, incorporating GO hole transport layers (HTL). The power conversion efficiency (PCE) of ∼5% the highest reported OPV using this...
The process of accurately gauging lifetime improvements in organic photovoltaics (OPVs) or other similar emerging technologies, such as perovskites solar cells is still a major challenge. presented work part larger effort developing worldwide database lifetimes that can help establishing reference baselines stability performance for OPVs and PV which then be utilized pass‐fail testing standards predicting tools. study constitutes scanning literature articles related to data OPVs, reported...
Dataspace and emerging technologies play a key role in developing value chain systems using cross-domain data, services integration. Therefore, this study has conducted comprehensive literature review for six years (2017-2022) on the convergence of Internet Things (IoT), Artificial Intelligence (AI) Distributed Ledger (Blockchain) supporting integration efforts at Edge. As an outcome, identified relevant challenges that include heterogeneity, interoperability, distributed security, trust,...
Solution processable semiconductor oxides have opened a new paradigm for the enhancement of lifetime thin film solar cells. Their fabrication by low-cost and environmentally friendly solution-processable methods makes them ideal barrier (hole electron) transport layers. In this work, we fabricate flexible ITO-free organic cells (OPV) printing applying an aqueous solution-processed V2O5 as hole layer (HTL) compared to devices PEDOT:PSS. The transparent conducting electrode was...
A method for the synthesis of metal nanoparticle coatings plasmonic solar cells which can meet large scale industrial demands is demonstrated. UV pulsed laser utilized to fabricate Au and Ag nanoparticles on surface polymer materials form substrates organic photovoltaic devices enhance their performance. Control particles' size density The optical electrical effects these embedded particles power conversion efficiency are examined rigorously using both experimental computer simulation. Gold...
Large area fabrication of metal alloy nanoparticles with tunable surface plasmon resonances on low-cost substrates is reported. A UV excimer laser was used to anneal 5 nm thick Ag Au bilayer films deposited different composition ratios create nanoparticles. These engineered surfaces are investigate how the wavelength resonance affects optical detection capability chemical species by surface-enhanced Raman spectroscopy.
Incorporating plasmonic nanoparticles in organic photovoltaic (OPV) devices can increase the optical thickness of absorber layer while keeping its physical small. However, trade-offs between various structure parameters have caused contradictions regarding effectiveness plasmonics literature, that somewhat stunted progressing a unified theoretical understanding for practical applications. We examine enhancement mechanisms PCDTBT:PC70BM OPV cells incorporating metal nanoparticles. The near-...
Vanadium pentoxide has been proposed as a good alternative hole transport layer for improving device lifetime of organic photovoltaics. The article presents study on the optimization slot‐die‐coated vanadium oxide films produced with roll coating machine aim achieving scalable solar cells and photo‐detectors improved performance. effect different diluents electrical properties is investigated, methodologies efficient interfacing anode are studied. Furthermore, incorporated investigated...
Due to the rapid development of Internet Things (IoT) and consequently, availability more IoT data sources, mechanisms for searching integrating sources become essential leverage all relevant improving processes services. This paper presents search framework IoTCrawler. The IoTCrawler is not only another framework, it a system systems which connects existing solutions offer interoperability overcome fragmentation. In addition its domain-independent design, features layered approach, offering...
A laser direct-writing method producing high-resolution patterns of gold, silver and alloy plasmonic nanoparticles implanted into the surface glass substrates is demonstrated, by scanning a pulsed UV beam across selected areas ultra-thin metal films. The are incorporated beneath hence scratch-resistant. physical mechanisms controlling process investigated we demonstrate that this technique can be used to fabricate wide range optical structures such as wavelength diffraction gratings...
Enhanced gas sensing properties of ZnO were achieved by designing hierarchical nanostructures with high surface-to-volume ratios and more exposed polar facets.