A5055424062- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- solar cell performance optimization
- Electrocatalysts for Energy Conversion
- Thin-Film Transistor Technologies
- Silicon and Solar Cell Technologies
- Electrochemical Analysis and Applications
- Electronic and Structural Properties of Oxides
- Advanced battery technologies research
- Chemistry and Chemical Engineering
- Advanced Photocatalysis Techniques
- Molecular Junctions and Nanostructures
- Nanowire Synthesis and Applications
- Nanofabrication and Lithography Techniques
- Modular Robots and Swarm Intelligence
Imperial College London
2023-2025
Queen Mary University of London
2020-2024
Technical University of Denmark
2020-2021
Abstract Organic solar cells (OSCs) based on nonfullerene acceptors (NFAs) have made significant breakthrough in their device performance, now achieving a power conversion efficiency of ≈18% for single junction devices, driven by the rapid development molecular design and engineering recent years. However, long‐term stability remains major challenge to overcome commercialization, due large part current lack understanding degradation mechanisms as well rules enhancing stability. In this...
A barrier to understanding the factors driving catalysis in oxygen evolution reaction (OER) is multiple overlapping redox transitions OER catalysts. The complexity of these obscure relationship between coverage adsorbates and kinetics, leading an experimental challenge measuring activity descriptors, such as binding energies, well adsorbate interactions, which may destabilize intermediates modulate their energies. Herein, we utilize a newly designed optical spectroelectrochemistry system...
With the advent of nonfullerene acceptors (NFAs), organic photovoltaic (OPV) devices are now achieving high enough power conversion efficiencies (PCEs) for commercialization. However, these performances rely on active layers processed from petroleum-based and toxic solvents, which undesirable mass manufacturing. Here, we demonstrate use biorenewable 2-methyltetrahydrofuran (2MeTHF) cyclopentyl methyl ether (CPME) solvents to process donor: NFA-based OPVs with no additional additives in...
Abstract As the rise of nonfullerene acceptors (NFA) has allowed lab‐scale organic solar cells (OSC) to reach 20% efficiency, translating these devices into roll‐to‐roll compatible fabrication still poses many challenges for researchers. Among are use green solvent solubility large‐scale manufacture, fabrication, and, not least, information on charge carrier dynamics in each upscaling step, further understand gap performance. In this work, reproducibility champion using slot‐die coating with...
Abstract The power conversion efficiency of organic photovoltaics (OPV) has recently surpassed 20%. However, the degradation mechanisms affecting blends based on these materials require urgent attention to improve stability such devices towards long timescales necessary for commercialization. In this work, we evaluated OPVs sustainable and scalable donors poly[(thiophene)‐alt‐(6,7‐difluoro‐2‐(2‐hexyldecyloxy)quinoxaline)] (PTQ10)...
The mark of 18% power conversion efficiency (PCE) was recently overcome by laboratory-scale organic solar cells (OSCs) thanks to the development nonfullerene acceptors (NFAs). NFA-based show improved performance and stability compared with those their fullerene-acceptor-based counterparts. However, only a few studies focus on scalable deposition techniques or roll-to-roll compatible processing, which is paramount importance for commercialization technology. Here, we report simple fast...
The charge carrier dynamics of SrTiO3 are measured by ultrafast transient absorption spectroscopy, revealing bimolecular recombination kinetics that at least two magnitudes slower than alternative metal oxides. This slow is associated with its high dielectric constant, and suggested to be central SrTiO3's performance in photocatalytic systems.
Organic solar cells (OSCs) have increased their power conversion efficiency above 18% thanks to the use of non-fullerene acceptors in binary or ternary blends tandem configurations. In this article, a study on lifetime P3HT:O-IDTBR bulk heterojunction OSCs ITO-free flexible substrates is presented. A direct comparison glass–glass and plastic–plastic encapsulation performance, with special focus its effect devices after degradation procedures, has been carried out complying ISOS protocols for...