118 citations · 469 across the 15 of their papers we have counts for
17 papers
Correlating activity and defects in (photo)electrocatalysts using in-situ transient optical microscopy
Camilo A. Mesa, Michael Sachs, Ernest Pastor +8
(Photo)electrocatalysts capture sunlight and use it to drive chemical reactions such as water splitting to produce H2. A major factor limiting photocatalyst development is their la…
Competing oxygen evolution reaction mechanisms revealed by high-speed compressive Raman imaging
Raj Pandya, Florian Dorchies, Davide Romanin +4
Transition metal oxides are state-of-the-art materials for catalysing the oxygen evolution reaction (OER), whose slow kinetics currently limit the efficiency of water electrolysis.…
Room Temperature Optically and Magnetically Active Edges in Phosphorene Nanoribbons
Arjun Ashoka, Adam J. Clancy, Naitik A. Panjwani +20
Nanoribbons - nanometer wide strips of a two-dimensional material - are a unique system in condensed matter physics. They combine the exotic electronic structures of low-dimensiona…
Three-dimensional operando optical imaging of single particle and electrolyte heterogeneities inside Li-ion batteries
Raj Pandya, Lorenzo Valzania, Florian Dorchies +10
Understanding (de)lithiation heterogeneities in battery materials is key to ensuring optimal electrochemical performance and developing better energy storage devices. However, this…
Tuning the coherent propagation of organic exciton-polaritons through dark state delocalization
Raj Pandya, Arjun Ashoka, Kyriacos Georgiou +7
While there have been numerous reports of long-range polariton transport at room-temperature in organic cavities, the spatio-temporal evolution of the propagation is scarcely repor…
Dielectric control of reverse intersystem crossing in thermally-activated delayed fluorescence emitters
Alexander J. Gillett, Anton Pershin, Raj Pandya +12
Thermally-activated delayed fluorescence (TADF) enables organic semiconductors with charge transfer (CT)-type excitons to convert dark triplet states into bright singlets via a rev…
Untargeted Effects in Organic Exciton-Polariton Transient Spectroscopy: A Cautionary Tale
Scott Renken, Raj Pandya, Kyriacos Georgiou +6
Strong light-matter coupling to form exciton- and vibropolaritons is increasingly touted as a powerful tool to alter the fundamental properties of organic materials. It is proposed…
How Does the Symmetry of S1 Influence Exciton Transport in Conjugated Polymers?
Raj Pandya, Antonios M. Alvertis, Qifei Gu +7
Many optoelectronic devices based on organic materials require rapid and long-range singlet exciton transport. Key factors that control the transport of singlet excitons includes t…
Directed Energy Transfer from Monolayer to NIR Emitting PbS-CdS Quantum Dots
Arelo O. A Tanoh, Nicolas Gauriot, Géraud Delport +9
Heterostructures of two-dimensional (2D) transition metal dichalcogenides (TMDs) and inorganic semiconducting zero-dimensional (0D) quantum dots (QDs) offer unique charge and energ…
First principles modeling of exciton-polaritons in polydiacetylene chains
Antonios M. Alvertis, Raj Pandya, Claudio Quarti +7
Exciton-polaritons in organic materials are hybrid states that result from the strong interaction of photons and the bound excitons that these materials host. Organic polaritons ho…
The impact of exciton delocalization on exciton-vibration interactions in organic semiconductors
Antonios M. Alvertis, Raj Pandya, Loreta A. Muscarella +7
Organic semiconductors exhibit properties of individual molecules and extended crystals simultaneously. The strongly bound excitons they host are typically described in the molecul…
Giant Photoluminescence Enhancement in MoSe monolayers treated with Oleic Acid Ligands
Arelo O. A Tanoh, Jack Alexander-Webber, Ye Fan +6
The inherently low photoluminescence (PL) yields in as prepared transition metal dichalcogenide (TMD) monolayers are broadly accepted to be the result of atomic vacancies (i.e. def…
Optical and electronic properties of colloidal CdSe Quantum Rings
James Xiao, Yun Liu, Violette Steinmetz +14
Luminescent colloidal CdSe nanorings are a new type of semiconductor structure that have attracted interest due to the potential for unique physics arising from their non-trivial t…
Optical projection and spatial separation of spin entangled triplet-pairs from the S1 (21Ag-) state of pi-conjugated systems
Raj Pandya, Qifei Gu, Alexandre Cheminal +11
The S1 (21Ag-) state is an optically dark state of natural and synthetic pi-conjugated materials that can play a critical role in optoelectronic processes such as, energy harvestin…
Ultrafast Tracking of Exciton and Charge Carrier Transport in Optoelectronic Materials on the Nanometer Scale
Christoph Schnedermann, Jooyoung Sung, Raj Pandya +6
We present a novel optical transient absorption and reflection microscope based on a diffraction-limited pump pulse in combination with a wide-field probe pulse, for the spatio-tem…
Ultrafast long-range energy transport via light-matter coupling in organic semiconductor films
Raj Pandya, Richard Y. S. Chen, Qifei Gu +29
The formation of exciton-polaritons allows the transport of energy over hundreds of nanometres at velocities up to 10^6 m s^-1 in organic semiconductors films in the absence of ext…
Extreme cooperative swelling in topologically disordered fibre entanglements
Alistair R. Overy, Raj Pandya, Phillip M. Maffettone +3
Entangled states are ubiquitous amongst fibrous materials, whether naturally occurring (keratin, collagen, DNA) or synthetic (nanotube assemblies, elastane). A key mechanical chara…