464 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- California Institute of TechnologyUS15 papers
- Lawrence Berkeley National LaboratoryUS9 papers
- Rensselaer Polytechnic InstituteUS5 papers
- Kavli Nanoscience InstituteUS4 papers
- University of California, BerkeleyUS4 papers
- Helmholtz-Zentrum Berlin für Materialien und EnergieDE3 papers
- Technische Universität IlmenauDE3 papers
- Argonne National LaboratoryUS2 papers
- Cornell UniversityUS2 papers
- Fraunhofer Institute for Solar Energy SystemsDE2 papers
- Friedrich Schiller University JenaDE2 papers
- Fritz Haber Institute of the Max Planck SocietyDE2 papers
24 papers
A nanoporous capacitive electrochemical ratchet for continuous ion separations
Rylan Kautz, Alon Herman, Ethan J. Heffernan +9
Directed ion transport in liquid electrolyte solutions underlies many phenomena in Nature and industry. While Nature has devised structures that drive continuous ion flow without F…
Polarization-Resolved Extreme Ultraviolet Second Harmonic Generation from LiNbO
Can B. Uzundal, Sasawat Jamnuch, Emma Berger +17
Second harmonic generation (SHG) spectroscopy ubiquitously enables the investigation of surface chemistry, interfacial chemistry as well as symmetry properties in solids. Polarizat…
Near surface defects: Cause of deficit between internal and external open-circuit voltage in solar cells
Mohit Sood, Aleksander Urbaniak, Christian Kameni Boumenou +6
The presence of interface recombination in a complex multilayered thin-film solar structure causes a disparity between the internal open-circuit voltage (VOC,in), measured by photo…
The spatial collection efficiency of photogenerated charge carriers in photovoltaic and photoelectrochemical devices
Gideon Segev, Hen Dotan, David S. Ellis +7
The spatial collection efficiency portrays the driving forces and loss mechanisms in photovoltaic and photoelectrochemical devices. It is defined as the fraction of photogenerated…
Ångström-resolved Interfacial Structure in Organic-Inorganic Junctions
Craig P. Schwartz, Sumana L. Raj, Sasawat Jamnuch +18
Charge transport processes at interfaces which are governed by complex interfacial electronic structure play a crucial role in catalytic reactions, energy storage, photovoltaics, a…
Ultrafast Studies of Hot-Hole Dynamics in Au/p-GaN Heterostructures
Giulia Tagliabue, Joseph S. DuChene, Mohamed Abdellah +9
Harvesting non-equilibrium hot carriers from photo-excited metal nanoparticles has enabled plasmon-driven photochemical transformations and tunable photodetection with resonant nan…
Reaction Mechanism of the Selective Reduction of CO to CO by a Tetraaza [CoNH] Complex in the Presence of Protons
Alejandro J. Garza, Srimanta Pakhira, Alexis T. Bell +2
The tetraaza [CoNH] complex (\textbf{1}) is remarkable for its ability to selectively reduce CO to CO with 45\% Faradaic efficiency and a CO to H rat…
Hybrid photo-electrochemical and photo-voltaic cells (HPEV cells)
Gideon Segev, Jeffery Beeman, Ian D. Sharp
The majority of photoelectrochemical (PEC) water splitting cells cannot drive the overall water splitting reactions without the assistance of an external power source. To provide a…
Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook
Deep Jariwala, Artur R. Davoyan, Joeson Wong +1
Two-dimensional (2D) semiconductors provide a unique opportunity for optoelectronics due to their layered atomic structure, electronic and optical properties. To date, a majority o…
Hot Carrier Dynamics in Photoexcited Gold Nanostructures: Role of Interband Excitations and Evidence for Ballistic Transport
Giulia Tagliabue, Adam S Jermyn, Ravishankar Sundararaman +5
Harnessing short-lived photoexcited electron-hole pairs in metal nanostructures has the potential to define a new phase of optoelectronics, enabling control of athermal mechanisms…
Transport of hot carriers in plasmonic nanostructures
Adam S. Jermyn, Giulia Tagliabue, Harry A. Atwater +3
Plasmonic hot carrier devices extract excited carriers from metal nanostructures before equilibration, and have the potential to surpass semiconductor light absorbers. However thei…
High Photovoltaic Quantum Efficiency in Ultrathin van der Waals Heterostructures
Joeson Wong, Deep Jariwala, Giulia Tagliabue +4
We report experimental measurements for ultrathin (< 15 nm) van der Waals heterostructures exhibiting external quantum efficiencies exceeding 50%, and show that these structures ca…
Monolithic Photoelectrochemical Device for 19% Direct Water Splitting
Wen-Hui Cheng, Matthias H. Richter, Matthias M. May +6
Recent rapid progress in efficiencies for solar water splitting by photoelectrochemical devices has enhanced its prospects to enable storable renewable energy. Efficient solar fuel…
Grand canonical electronic density-functional theory: algorithms and applications to electrochemistry
Ravishankar Sundararaman, William A. Goddard, Tomas A. Arias
First-principles calculations combining density-functional theory and continuum solvation models enable realistic theoretical modeling and design of electrochemical systems. When a…
Experimental and ab initio ultrafast carrier dynamics in plasmonic nanoparticles
Ana M. Brown, Ravishankar Sundararaman, Prineha Narang +3
Ultrafast pump-probe measurements of plasmonic nanostructures probe the non-equilibrium behavior of excited carriers, which involves several competing effects obscured in typical e…
Resonant Thermoelectric Nanophotonics
Kelly W. Mauser, Slobodan Mitrovic, Seyoon Kim +2
Photodetectors are typically based on photocurrent generation from electron-hole pairs in semiconductor structures and on bolometry for wavelengths that are below bandgap absorptio…
Partial oxidation of Step-Bound Water Leads to Anomalous pH Effects on Metal Electrode Step-Edges
Kathleen Schwarz, Bingjun Xu, Yushan Yan +1
The design of better heterogeneous catalysts for applications such as fuel cells and electrolyzers requires a mechanistic understanding of electrocatalytic reactions and the depend…
Near Unity Absorption in Van der Waals Semiconductors for Ultrathin Optoelectronics
Deep Jariwala, Artur R. Davoyan, Giulia Tagliabue +3
We demonstrate near unity, broadband absorbing optoelectronic devices using sub-15 nm thick transition metal dichalcogenides (TMDCs) of molybdenum and tungsten as van der Waals sem…
Ab initio phonon coupling and optical response of hot electrons in plasmonic metals
Ana M. Brown, Ravishankar Sundararaman, Prineha Narang +2
Ultrafast laser measurements probe the non-equilibrium dynamics of excited electrons in metals with increasing temporal resolution. Electronic structure calculations can provide a…
Efficient Direct Solar-to-Hydrogen Conversion by In Situ Interface Transformation of a Tandem Structure
Matthias M. May, Hans-Joachim Lewerenz, David Lackner +2
Photosynthesis is nature's route to convert intermittent solar irradiation into storable energy, while its use for an industrial energy supply is impaired by low efficiency. Artifi…
Pattern Decomposition with Complex Combinatorial Constraints: Application to Materials Discovery
Stefano Ermon, Ronan Le Bras, Santosh K. Suram +4
Identifying important components or factors in large amounts of noisy data is a key problem in machine learning and data mining. Motivated by a pattern decomposition problem in mat…
The charge-asymmetric nonlocally-determined local-electric (CANDLE) solvation model
Ravishankar Sundararaman, William A. Goddard
Many important applications of electronic structure methods involve molecules or solid surfaces in a solvent medium. Since explicit treatment of the solvent in such methods is usua…
The interface of GaP(100) and H2O studied by photoemission and reflection anisotropy spectroscopy
Matthias M May, Oliver Supplie, Christian Höhn +3
We study the initial interaction of adsorbed H2O with P-rich and Ga-rich GaP(100) surfaces. Atomically well defined surfaces are prepared by metal-organic vapour phase epitaxy and…
Study of dipole moments of LiSr and KRb molecules by quantum Monte Carlo methods
Shi Guo, Michal Bajdich, Lubos Mitas +1
Heteronuclear dimers are of significant interest to experiments seeking to exploit ultracold polar molecules in a number of novel ways including precision measurement, quantum comp…