Grants per year
Personal profile
Research Interests
Our research goal is to establish relationships of energetics, dynamics and structures in photochemical and photophysical processes on different temporal and spatial scales. We are interested in reactions related to solar energy conversion, catalysis, molecular devices and enzymatic processes. Using a variety of experimental techniques, such as ultrafast optical and X-ray spectroscopy/scattering, as well as theoretical calculations, we seek fundamental understanding of photon/matter interactions in order to minimize the driving force and optimize the output of photochemical reactions. The results from our research provide feedbacks/guidance to materials design and synthesis.
Education/Academic qualification
Physical Chemistry, PhD, University of Chicago
… → 1987
Chemistry, BS, Peking University
… → 1982
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Excited states
Chemical Compounds
Polymers
Chemical Compounds
Charge transfer
Chemical Compounds
X rays
Chemical Compounds
Absorption spectroscopy
Chemical Compounds
Metals
Chemical Compounds
Ligands
Chemical Compounds
x rays
Physics & Astronomy
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.
Grants 2007 2020
Joint appointment-Pyosang Kim Argonne funding
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
1/1/19 → 12/31/19
Project: Research project
Appointments and Schedules
Joints
Joint appointment funding for Michael Mara
UChicago Argonne, LLC, Argonne National Laboratory, Department of Energy
1/1/19 → 12/31/19
Project: Research project
Appointments and Schedules
Joints
Collaborative Research:Ultrafast Excited State Electron and Nuclear Coherences in Transition Metal Dimer Complexes and Their Roles in Photochemistry
8/1/17 → 7/31/20
Project: Research project
Optical anisotropy
Photochemical reactions
Coordination Complexes
Excited states
Dimers
Capturing Transient Protein Structures on Multiple Spatial and Temporal Scales
National Institute of General Medical Sciences
7/1/15 → 6/30/20
Project: Research project
Conformations
Proteins
Metals
X rays
Ligands
Chen- CENTER FOR LIGHT ENERGY ACTIVATED REDOX PROCESSES (LEAP) (Formerly ANSER)
8/1/09 → 7/31/20
Project: Research project
Research Output 1985 2019
Buckling of Two-Dimensional Covalent Organic Frameworks under Thermal Stress
Evans, A. M., Ryder, M. R., Flanders, N. C., Vitaku, E., Chen, L. X. & Dichtel, W., Jun 12 2019, In : Industrial and Engineering Chemistry Research. 58, 23, p. 9883-9887 5 p.Research output: Contribution to journal › Article
Thermal stress
Buckling
Gravimetric analysis
Thermodynamic stability
X ray diffraction
3
Citations
(Scopus)
Controlled growth of imine-linked two-dimensional covalent organic framework nanoparticles
Li, R. L., Flanders, N. C., Evans, A. M., Ji, W., Castano, I., Chen, L. X., Gianneschi, N. & Dichtel, W., Jan 1 2019, In : Chemical Science. 10, 13, p. 3796-3801 6 p.Research output: Contribution to journal › Article
Open Access
Imines
Nanoparticles
Nucleation
X ray scattering
Powders
Intriguing Effects of Halogen Substitution on the Photophysical Properties of 2,9-(Bis)halo-Substituted Phenanthrolinecopper(I) Complexes
Brown-Xu, S., Fumanal, M., Gourlaouen, C., Gimeno, L., Quatela, A., Thobie-Gautier, C., Blart, E., Planchat, A., Riobé, F., Monnereau, C., Chen, L. X., Daniel, C. & Pellegrin, Y., Jun 17 2019, In : Inorganic chemistry. 58, 12, p. 7730-7745 16 p.Research output: Contribution to journal › Article
Halogens
Excited states
halogens
halos
Substitution reactions
Investigation of the photoinduced axial ligation process in the excited state of nickel(II) phthalocyanine
Hong, J., Fauvell, T. J., Helweh, W., Zhang, X. & Chen, L. X., Mar 1 2019, In : Journal of Photochemistry and Photobiology A: Chemistry. 372, p. 270-278 9 p.Research output: Contribution to journal › Article
Nickel
Excited states
Pyridine
Ground state
pyridines
4
Citations
(Scopus)
Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals
Kirschner, M. S., Diroll, B. T., Guo, P., Harvey, S. M., Helweh, W., Flanders, N. C., Brumberg, A., Watkins, N. E., Leonard, A. A., Evans, A. M., Wasielewski, M. R., Dichtel, W., Zhang, X., Chen, L. X. & Schaller, R. D., Dec 1 2019, In : Nature communications. 10, 1, 504.Research output: Contribution to journal › Article
Phase Transition
Nanoparticles
Nanocrystals
nanocrystals
Phase transitions