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I am a graduate of ETH Zurich in Switzerland (1997) and pursued my DPhil as a Greendale Senior Scholar at Merton College at the University of Oxford (UK) from 1998 - 2000. From 2001-2004 I was a Swiss NSF PostDoc at JILA in Boulder Colorado. Since 2004 I am faculty at The University of Arizona.
I really enjoy backpacking, road and mountain biking, long distance running with the lab dog and any and all intellectual endeavours.Show Less
Research Opportunities
- Undergraduate researcher
Grant: Collaborative Research: Tailoring Electron and Spin Transport in Single Molecule Junctions
Learn how to make and control low-energy use electronic devices from single molecules...
Courses
- PCPhysical Chemistry
- CPCChemical Physics in the Condensed Phase
- MMCMathematical Methods for Chemists
- MPCMathematical Physics for Chemistry
- QCQuantum Chemistry
- IQCIntroduction to Quantum Chemistry
Student Thesis/Dissertation
- Cleaning and Passivation of Germanium and Silicon Germanium Surfaces
2022
doctoral - Structure-Function Relationships and Advanced Data Analysis in Single Molecule Quantum Transport
2021
doctoral - Dynamics and Energetics of Layered Materials and their Interfaces
2019
doctoral - Charge Transport through Single Molecules with Mechanically Controlled Break Junctions
2019
doctoral - Controlling Molecular Orientation with Applications to Organic Electronics
2017
masters - Nanoscale Insight and Control of Structural and Electronic Properties of Organic Semiconductor / Metal Interfaces
2017
doctoral - Electron Dynamics with Core Level Spectroscopy in MgₓZn₁₋ₓO and SnS₂. Design of a Low Energy Electron Diffraction Instrument
2016
masters - Measuring and Controlling Energy Level Alignment at Hybrid Organic/Inorganic Semiconductor Interfaces
2015
doctoral - Electronic Structure and Dynamics at Organic Semiconductor / Inorganic Semiconductor Interfaces
2015
doctoral - Design of a Mechanically Controllable Break Junction to Measure Quantum Conductance of Gold
2014
masters - From Growth to Electronic Structure of Dipolar Organic Semiconductors on Coinage Metal Surfaces
2014
doctoral
Grants
- Collaborative Research: Tailoring Electron and Spin Transport in Single Molecule Junctions
Principal Investigator (PI)
2023
$165.4KActiveOpportunity - Time Reversal Symmetry Breaking in Quantum Materials Without Magnetism
Principal Investigator (PI)
2021
$528.8KActive - Understanding Electronic and Spin Structure at Organic / Metal Interfaces: Surfaces and Symmetry
Principal Investigator (PI)
2020
$500.5KActive - MRI: Development of Multiuser Instrument for Attosecond X-Ray Probing of Correlated Quantum Dynamics
Co-Investigator (COI)
2019
$873.6KActive - EAGER: Enabling Quantum Leap: Towards Room Temperature Quantum Logic Using Moire Heterostructure Single Quantum Emitters Coupled to Plasmonic Waveguides
Co-Investigator (COI)
2018
$355.0K - EAGER: Enabling Quantum Leap: Towards Room Temperature Quantum Logic Using Moire Heterostructure Single Quantum Emitters Coupled to Plasmonic Waveguides
Co-Investigator (COI)
2018
$55.0K - MRI: Acquisition of a Nanofabrication and Materials Research Etching System
Co-Investigator (COI)
2017
$770.6K - Electronic Structure in Single Molecule Transport
Principal Investigator (PI)
2017
$507.5K - Controlling Valley Polarization in 2D Heterostructures
Co-Investigator (COI)
2017
$424.0K - Photoelectron Spectroscopy for Sensitization in Solid State Lighting
Principal Investigator (PI)
2017
$30.8K
News
- UA Researchers Observe Electrons Zipping Around in Crystals
2018
- New UA Grad Selected to Speak at Beckman Symposium
2016
- Observing Electrons in Real-Time Could Lead to Faster Computing
2013
- Service and Scholarship Legacy of Achievement Medal Awardees
2010
Publications (107)
Recent
- Low Temperature Photoluminescence of SbPS4
2023
- Revealing Hidden Spin Polarization in Centrosymmetric van der Waals Materials on Ultrafast Timescales
2023
- Beyond Simple Structure–Function Relationships: The Interplay of Geometry, Electronic Structure, and Molecule/Electrode Coupling in Single-Molecule Junctions
2022
- Effect of geometric isomerism on single molecule conductance in a gold mechanically-controlled break junction
2022
- Oligophenylene vinylene derivatives: Synthesis and applications in a gold mechanically-controlled break junction
2022
- Beyond Simple Structure-Function Relationships: Interplay Between Cis/Trans Isomerization and Geometrically Constrained Metal/Molecule Coupling Efficiency in Single-Molecule …
2022
- HATCN on Ag 111) a Molecular Kondo Switch with Intrinsic Magnetic Bistability
2022
- Localized interlayer excitons in MoSe2–WSe2 heterostructures without a moiré potential
2022
- Enhanced Raman scattering from exciton coupling in 2D TMD-molecular heterostructures
2021
- Twist-Angle Dependent Interlayer Exciton Emission in MoSe2-WSe2 Heterostructures
2021
- Grid-Based Correlation Analysis to Identify Rare Quantum Transport Behaviors
2021
- Phenalenyls as tunable excellent molecular conductors and switchable spin filters
2021
- H2Pc and pentacene on Cu 110)2× 1) O: A combined STM and nc-AFM study
2020
- Temperature dependent moiré trapping of interlayer excitons in MoSe2-WSe2 heterostructures
2020
- Ultrafast Carrier Dynamics in Two-Dimensional Electron Gas-like K-Doped MoS2
2020
- Anomalous bright narrow interlayer exciton photoluminescence in MoSe2-WSe2 heterostructures
2020
- Coupled 2D Semiconductor–Molecular Excitons with Enhanced Raman Scattering
2020
- Raman enhancement of PTCDA on monolayer WSe2
2020
- Single Molecule Quantum Transport in the Presence of Built-in Electric Fields-a Design Principle?
2020
- Unsupervised Segmentation-Based Machine Learning as an Advanced Analysis Tool for Single Molecule Break Junction Data vol 124, pg 18302, 2020)
2020
- Unsupervised segmentation-based machine learning as an advanced analysis tool for single molecule break junction data
2020
- The role of initial and final states in molecular spectroscopies
2019
- Attosecond Dynamics and Electronic Rehybridization in MoS2
2019
- Investigating Molecule-Electrode Binding in Single Molecule Junctions Using Linker GrouChemistry and Machine Learning
2019
- Structurally induced large changes of the energy level alignment in CuPc on
2018
- van der Waals interaction activated strong electronic coupling at the interface between chloro boron-subphthalocyanine and Cu 111)
2018
- Attosecond Carrier Dynamics and Electronic Structure Measurements in Quasi-2D Layered Materials
2018
- Electronic Structure and Spin Texture at Organic Semiconductor Interfaces
2018
- Attosecond Carrier Dynamics in Layered and Quasi-2D Semiconductors
2018
- Towards Understanding Energy Level Alignment in Single Molecule Charge Transport with Break Junctions
2018
- Chemical Functionalization and Charge Carrier Delocalization at a Hybrid Organic/Inorganic Semiconductor Interface
2018
- Configuration-specific electronic structure of strongly interacting interfaces: TiOPc on Cu 110)
2017
- Uncovering hierarchical data structure in single molecule transport
2017
- Attosecond Carrier Dynamics in Quasi-2D SnS2
2017
- Ensemble control of Kondo screening in molecular adsorbates
2017
- Anisotropic attosecond charge carrier dynamics and layer decoupling in quasi-2D layered SnS2
2017
- Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions
2017
- Stacking the Deck: Leveraging Surface Interactions to Tune Interfacial Electronic Structure
2017
- Hybridization‐Induced Carrier Localization at the C60/ZnO Interface
2016
- Valence and conduction band structure of the quasi-two-dimensional semiconductor Sn S 2
2016
- Sticking with the pointy end? Molecular configuration of chloro boron-subphthalocyanine on Cu 111)
2016
- Spectroscopy and Control of Near-Surface Defects in Conductive Thin Film ZnO
2016
- Novel Application of Cluster Analysis to Transport Data in Single Molecule Break Junctions
2016
- Disrupted Attosecond Charge Carrier Delocalization at a Hybrid Organic/Inorganic Semiconductor Interface
2015
- Surface-mediated dechlorination of Subphthalocyanine on Copper 111)
2015
- Surface-Mediated Self-Assembly Controlled by Interfacial Charge-Transfer
2015
- Controlling the Spin Texture of Topological Insulators by Rational Design of Organic Molecules
2015
- The importance of gastates for energy level alignment at hybrid interfaces
2015
- Integer Charge Transfer and Hybridization at an Organic Semiconductor Conductive Oxide Interface
2015
- Strong Interaction between Subphthalocyanines and Copper 111) A computational study
2015
- Hybridization-Induced Carrier Localization at the C60 ZnO Interface
2015
- Selective Cooperative Self-Assembly between an Organic Semiconductor and Native Adatoms on Cu(110)
2015
- Workfunction tuning of graphene with organic molecules
2014
- Persistent non-equilibrium interface dipoles at quasi-2D organic/inorganic semiconductor interfaces: the effect of gastates
2014
- Subphthalocyanines on Cu 111) Example for strong metal-molecule interactions
2014
- Defect‐Driven Interfacial Electronic Structures at an Organic/Metal‐Oxide Semiconductor Heterojunction
2014
- Understanding the adsorption of ClB-SubPc on Cu 111) as a prototypical example for strong metal-molecule interactions
2014
- Unified photoemission spectroscopic picture of defect-driven charge carrier physics at an organic semiconductor/metal oxide interface
2014
- GaStates at the Organic Semiconductor/Oxide Interface: Control of Energy Level Alignment
2014
- Tin Disulfide An Emerging Layered Metal Dichalcogenide Semiconductor: Materials Properties and Device Characteristics
2014
- Controlling Surface-Mediated Interactions at the Organic Semiconductor/Metal Interface
2014
- Ultrafast Charge-Transfer at an Organic Semiconductor/Oxide Interface
2014
- Tailoring Electron‐Transfer Barriers for Zinc Oxide/C60 Fullerene Interfaces
2014
- Interplay of local and global interfacial electronic structure of a strongly coupled dipolar organic semiconductor
2014
- Spin-dependent trapping of electrons at spinterfaces
2013
- Electronic structure and dynamics of quasi-2D states of vanadyl naphthalocyanine on Au(111)†
2013
- The Importance of Interfaces in Excitonic Solar Cells: Towards Control from First-Principles
2013
- Understanding interfacial electronic structure and charge transfer: An electrostatic perspective
2012
- Zinc oxide as a model transparent conducting oxide: a theoretical and experimental study of the impact of hydroxylation, vacancies, interstitials, and extrinsic doping on the …
2012
- Magnetic self-assembly of gold nanoparticle chains using dipolar core–shell colloids
2011
- Near-and Far-Field Effects on Excited States at Organic Semiconductor and Metal Interfaces
2011
- Kinetic studies of the photogeneration of silver nanoparticles
2011
- Interfacial electronic structure of the dipolar vanadyl naphthalocyanine on Au(111) Push-Back vs dipolar effects
2011
- Resonance and localization effects at a dipolar organic semiconductor interface
2011
- Influence of electrostatic fields on molecular electronic structure: Insights for interfacial charge transfer
2010
- A. Armstrong, NR; Sahoo, R. Srivastava, DN; Pyun
2010
- Experimental determination of the excited-state polarizability and dipole moment in a thin organic semiconductor film
2010
- Interfacial electronic structure of vanadyl naphthalocyanine on highly ordered pyrolytic graphite
2010
- Near-and far-field effects on molecular energy level alignment at an organic/electrode interface
2010
- Image states at the interface with a dipolar organic semiconductor
2010
- Synthesis and Colloidal Polymerization of Ferromagnetic Au−Co Nanoparticles into Au−Co3O4 Nanowires
2010
- Interfacial structure and dynamics at the electrode/organic interface
2009
- Proceedings of SPIE The International Society for Optical Engineering: Introduction
2009
- Confocal single molecule fluorescence spectroscopy in ultrahigh vacuum
2009
- Interfacial charge transfer at the single molecule level: Insights for dye-sensitized solar cells
2009
- Physical Chemistry of Interfaces and Nanomaterials VIII
2009
- Single molecule power-law behavior on a crystalline surface
2009
- Physical Chemistry of Interfaces and Nanomaterials VII
2008
- Toward microscale electronic structure in polymer Nanoparticle composites for solar energy conversion
2008
- Single molecule interfacial charge transfer dynamics in a dye-sensitized solar cell model
2008
- Local interfacial electronic structure of thin pentacene films on Si 111)
2008
- Interfacial structure and dynamics in organic photovoltaics: From solar cells to single molecules
2007
- Interfacial structure and dynamics in molecular solar cells
2007
- Physical Chemistry of Interfaces and Nanomaterials VI
2007
- Imaging nanostructures with scanning photoionization microscopy
2006
- Confocal fluorescencehotoionization microscopy studies of nanostructures.
2005
- Diffraction-limited photogeneration and characterization of silver nanoparticles
2004
- Changing pulse-shape basis for molecular learning control
2004
- Making and Measuring vibrational Wave Packets in Small Molecules Through Non-Resonant Impulsive Stimulated Raman Scattering
2002
- Spatial discrimination of Rydberg tagged molecular photofragments in an inhomogeneous electric field
2001
- High resolution photoionisation spectroscopy of vibrationally excited Ar· NO
2001
- Vibrational spectra and intramolecular vibrational redistribution in highly excited deuterobromochlorofluoromethane CDBrClF: Experiment and theory
2000
- Gas Phase Dynamics and Structure: Spectroscopy, Molecular Interactions, Scattering, and Photochemistry-Vibrational spectra and intramolecular vibrational redistribution in …
2000
- Gas Phase Dynamics and Structure: Spectroscopy, Molecular Interactions, Scattering, and Photochemistry-Rapidly fluctuating anisotropy parameter in the near-threshold …
2000
- Rapidly fluctuating anisotropy parameter in the near-threshold photodissociation of NO sub 2 sub
2000
- Development of a zero kinetic energy photodissociation spectrometer.
1999
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