Milan E. Delor
Research Interest
Summary
The efficient transport and interconversion of energy between photons, electrons, ions and heat underpins life on earth. In modern technologies ranging from solar panels to computers, batteries and health sensors, energy moves slowly, randomly and often inefficiently towards target conversion sites. We aim to direct energy flow in emerging materials in ways that are targeted and efficient, moving beyond random motion to unleash new paradigms for extracting more energy from solar panels, storing more energy in batteries, speeding up information transport and processing, and exploiting correlated electronic systems for new applications.
We use light as a powerful stimulus to initiate, image and control electronic behavior in emerging materials on extreme spatiotemporal scales. Questions we explore include:
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How do we image individual electrons moving and interacting with their surroundings in material lattices?
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How do we control the direction and speed at which energy packets move towards functional targets?
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How do we unlock exotic emergent phenomena and exploit them in modern devices?
The ongoing explosion of discoveries in quantum, meta- and nanomaterials provides the perfect platform for us to answer these questions now.
In the process of answering these questions, we invent new tools capable of non-invasively imaging events happening over femtoseconds to hours at the single-nanometer scale. These tools are often relevant to a broad range of scientific disciplines: think taking movies of self-assembling biological or material building blocks, of neurons emitting action potentials, and of non-dissipative electronic transport in superconductors.
In addition to gaining a deep fundamental understanding of light-matter interactions, students and postdocs in the group acquire experience in nonlinear optics, super-resolution microscopy, ultrafast visible, IR and terahertz spectroscopy, and materials design and characterization. We collaborate broadly with both theoretical and experimental research groups at Columbia and beyond.
2020
Milan Delor, Adam H. Slavney, Nathan R. Wolf, Marina R. Filip, Jeffrey B. Neaton, Hememala I. Karunadasa, Naomi S. Ginsberg (2020).
Carrier diffusion lengths exceeding 1 μm despite trap-limited transport in halide double perovskites
ACS Energy Letters, vol. 5, pp. 1337-1345.
2019
Milan Delor, Hannah L Weaver, QinQin Yu, Naomi S Ginsberg (2020).
Imaging material functionality through 3D nanoscale tracking of energy flow
Nature Materials, vol. 19, pp. 56-62
2018
Milan Delor, Jing Dai, Trevor D Roberts, Julia R Rogers, Samia M Hamed, Jeffrey B Neaton, Phillip L Geissler, Matthew B Francis, Naomi S Ginsberg (2018)
Exploiting chromophore–protein interactions through linker engineering to tune photoinduced dynamics in a biomimetic light-harvesting platform
Journal of the American Chemical Society 140 (20), 6278-6287
2017
Stuart A Archer, Theo Keane, Milan Delor, Elizabeth Bevon, Alexander J Auty, Dimitri Chekulaev, Igor V Sazanovich, Michael Towrie, Anthony JHM Meijer, Julia A Weinstein (2017)
Directly Coupled Versus Spectator Linkers on Diimine PtII Acetylides—Change the Structure, Keep the Function?
Chemistry-A European Journal 23 (72), 18239-18251
Milan Delor, Stuart A Archer, Theo Keane, Anthony JHM Meijer, Igor V Sazanovich, Gregory M Greetham, Michael Towrie, Julia A Weinstein (2017)
Directing the path of light-induced electron transfer at a molecular fork using vibrational excitation
Nature chemistry 9 (11), 1099-1104
Milan Delor, Dannielle G McCarthy, Benjamin L Cotts, Trevor D Roberts, Rodrigo Noriega, David D Devore, Sukrit Mukhopadhyay, Timothy S De Vries, Naomi S Ginsberg (2017)
Resolving and Controlling Photoinduced Ultrafast Solvation in the Solid State
The Journal of Physical Chemistry Letters 8 (17), 4183-4190
Benjamin L Cotts, Dannielle G McCarthy, Rodrigo Noriega, Samuel B Penwell, Milan Delor, David D Devore, Sukrit Mukhopadhyay, Timothy S De Vries, Naomi S Ginsberg (2017)
Tuning thermally activated delayed fluorescence emitter Photophysics through solvation in the solid state
ACS Energy Letters 2 (7), 268
Xunmo Yang, Theo Keane, Milan Delor, Anthony JHM Meijer, Julia Weinstein, Eric R Bittner (2017)
Identifying electron transfer coordinates in donor-bridge-acceptor systems using mode projection analysis
Nature Communications 8, 14554
2016
Stuart A Archer, Theo Keane, Milan Delor, Anthony JHM Meijer, Julia A Weinstein (2016)
13C or Not 13C: Selective Synthesis of Asymmetric Carbon-13-Labeled Platinum(II) cis-Acetylides
Inorganic chemistry 55 (17), 8251-8253
Maria A Lebedeva, Thomas W Chamberlain, Paul A Scattergood, Milan Delor, Igor V Sazanovich, E Stephen Davies, Mikhail Suyetin, Elena Besley, Martin Schröder, Julia A Weinstein, Andrei N Khlobystov (2016)
Stabilising the lowest energy charge-separated state in a {metal chromophore–fullerene} assembly: a tuneable panchromatic absorbing donor–acceptor triad
Chemical Science 7 (9), 5908-5921
2015
Paul A Scattergood, Milan Delor, Igor V Sazanovich, Michael Towrie, Julia A Weinstein (2015)
Ultrafast charge transfer dynamics in supramolecular Pt (II) donor–bridge–acceptor assemblies: the effect of vibronic coupling
Faraday discussions, 185, 69-86
Milan Delor, Paul A Scattergood, Igor V Sazanovich, Theo Keane, Gregory M Greetham, Anthony JHM Meijer, Michael Towrie, Anthony W Parker, Julia A Weinstein (2015)
Controlling electron transfer in condensed phase with bond-specific infrared excitation
Physical Chemistry of Interfaces and Nanomaterials XIV 9549, 95490U
Milan Delor, Paul A Scattergood, Igor V Sazanovich, Theo Keane, Gregory M Greetham, Anthony JHM Meijer, Michael Towrie, Anthony W Parker, Julia A Weinstein (2015)
On the mechanism of vibrational control of light-induced charge transfer in donor–bridge–acceptor assemblies
Nature chemistry 7 (9), 689
Milan Delor, Igor V Sazanovich, Michael Towrie, Julia A Weinstein (2015)
Probing and exploiting the interplay between nuclear and electronic motion in charge transfer processes
Accounts of chemical research 48 (4), 1131-1139
Paul A Scattergood, Patricia Jesus, Harry Adams, Milan Delor, Igor V Sazanovich, Hugh D Burrows, Carlos Serpa, Julia A Weinstein (2015)
Exploring excited states of Pt (II) diimine catecholates for photoinduced charge separation
Dalton Transactions 44 (26), 11705-11716
Marina Fedoseeva, Milan Delor, Simon C Parker, Igor V Sazanovich, Michael Towrie, Anthony W Parker, Julia A Weinstein (2015)
Vibrational energy transfer dynamics in ruthenium polypyridine transition metal complexes
Physical Chemistry Chemical Physics 17 (3), 1688-1696
2014
Milan Delor, Paul A Scattergood, Igor V Sazanovich, Anthony W Parker, Gregory M Greetham, Anthony JHM Meijer, Michael Towrie, Julia A Weinstein (2014)
Toward control of electron transfer in donor-acceptor molecules by bond-specific infrared excitation
Science 346 (6216), 1492-1495
Milan Delor, Igor V Sazanovich, Michael Towrie, Steven J Spall, Theo Keane, Alexander J Blake, Claire Wilson, Anthony JHM Meijer, Julia A Weinstein (2014)
Dynamics of ground and excited state vibrational relaxation and energy transfer in transition metal carbonyls
The Journal of Physical Chemistry B 118 (40), 11781-11791
Naina Deibel, David Schweinfurth, Stephan Hohloch, Milan Delor, Igor V Sazanovich, Michael Towrie, Julia A Weinstein, Biprajit Sarkar (2014)
Electrochemistry, Chemical Reactivity, and Time-Resolved Infrared Spectroscopy of Donor–Acceptor Systems [(Q x) Pt (pap y)](Q= Substituted o-Quinone or o-Iminoquinone; pap = Phenylazopyridine)
Inorganic chemistry 53 (2), 1021-1031
Paul A Scattergood, Milan Delor, Igor V Sazanovich, Oleg V Bouganov, Sergei A Tikhomirov, Alexander S Stasheuski, Anthony W Parker, Gregory M Greetham, Michael Towrie, E Stephen Davies, Anthony JHM Meijer, Julia A Weinstein (2014)
Electron transfer dynamics and excited state branching in a charge-transfer platinum (II) donor–bridge-acceptor assembly
Dalton Transactions 43 (47), 17677-17693
Theodore Lazarides, Milan Delor, Igor V Sazanovich, Theresa M McCormick, Irene Georgakaki, Georgios Charalambidis, Julia A Weinstein, Athanassios G Coutsolelos (2014)
Photocatalytic hydrogen production from a noble metal free system based on a water soluble porphyrin derivative and a cobaloxime catalyst
Chemical Communications 50 (5), 521-523
2013
Theodore Lazarides, Igor V Sazanovich, A Jalila Simaan, Maria Chrisanthi Kafentzi, Milan Delor, Yasmina Mekmouche, Bruno Faure, Marius Réglier, Julia A Weinstein, Athanassios G Coutsolelos, Thierry Tron (2013)
Visible Light-Driven O2 Reduction by a Porphyrin–Laccase System
Journal of the American Chemical Society 135 (8), 3095-3103