David Waldeck

Department of Chemistry, University of Pittsburgh
Ph.D., Chemistry, University of Chicago, 1983
Summary:

Chemistry and Dynamics in the Condensed Phase. Professor Waldeck's research program uses methods of spectroscopy, electrochemistry, and microscopy to investigate primary processes in the condensed phase, which includes liquids, solids and liquid/solid interfaces. Current themes of his research are the fundamental understanding of electron transfer reactions, electron transport in supramolecular structures, and nanophotonics.

Solution Studies. His research program studies electron transfer processes experimentally in order to directly evaluate and improve theoretical models. Currently, his group is investigating how the electron transfer rate in semiconductor nanoparticle assemblies depends on energetic, geometric, and electrostatic features of the assemblies.  Other efforts are studying electron transfer between semiconductor nanoparticles and conjugated polymers and how it depends on the energetic, electrostatic, and chirality of the constituents. A major goal of these studies is to understand how the structural and energetic hierachy of nanometer scale assemblies can be manipulated to control the electron transfer.

Interfacial Charge Transfer. This effort probes charge transfer through monolayers and individual molecules by electrochemical and/or conducting probe methods. Previous work has used electrochemical studies to elucidate how the molecular properties (e.g., electronic character, chirality, and the nature of the molecule-electrode linkage) affect the observed tunneling barriers and molecular conductivities.  Current work is investigating how to manipulate the electronic and chemical nature of monolayer films to enhance the electronic interaction between a redox moiety and the electrode, with a particular focus on better understanding how to ‘wire’ biomolecules (proteins and oligonucleotides) to electrodes.

Nanophotonics. Technological breakthroughs in fabrication and characterization are allowing his group to probe the nature of light-matter interactions (photonics) for nanostructures and molecular assemblies. This work aims to develop a better understanding of the novel optical properties displayed by nanostructures and how to exploit them for applications in sensing and energy conversion.

Students
Namesort descending Position Email
Bloom, Brian Postdoctoral Fellow bpb8@pitt.edu
Clever, Caleb Graduate Student cbc48@pitt.edu
Ghosh, Supriya Graduate Student SUG39@pitt.edu
Wei, Simon Graduate Student jiw105@pitt.edu

Edward Beall

Graduate Student

ejb65@pitt.edu
219 Parkman Avenue, Pittsburgh PA, 15260
443-277-2648

Affiliation:

Chemistry
University of Pittsburgh

Brian Bloom

Postdoctoral Fellow

bpb8@pitt.edu
G-10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Caleb Clever

Graduate Student

cbc48@pitt.edu
G10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Arthur Davis

Graduate Student

acd47@pitt.edu
G-10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Supriya Ghosh

Graduate Student

SUG39@pitt.edu
Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Education:

  • M.Sc., Chemistry, Indian Institute of Technology, Bombay
  • M.Sc., Chemistry, University of Alberta

Dan Lamont

Graduate Student

dnl22@pitt.edu
G-10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Simon Wei

Graduate Student

jiw105@pitt.edu
G-10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh

Emil Wierzbinski

Graduate Student


G-10 Chevron Science Center, Pittsburgh PA, 15213

Affiliation:

Chemistry
University of Pittsburgh
Most Cited Publications
  1. "Photoisomerization dynamics of stilbenes." David H Waldeck. Chemical Reviews.
  2. "Noncovalent engineering of carbon nanotube surfaces by rigid, functional conjugated polymers." Jian Chen, Haiying Liu, Wayne A Weimer, Mathew D Halls, David H Waldeck, Gilbert C Walker. Journal of the American Chemical Society.
  3. "Breakdown of Kramers theory description of photochemical isomerization and the possible involvement of frequency dependent friction." Stephan P Velsko, David H Waldeck, Graham R Fleming. The Journal of Chemical Physics.
  4. "Hydrogen-bonding self-assembly of multichromophore structures." Paolo Tecilla, Robert P Dixon, Gregory Slobodkin, David S Alavi, David H Waldeck, Andrew D Hamilton. Journal of the American Chemical Society.
  5. "Carbon nanotube− polymer nanocomposite infrared sensor." Basudev Pradhan, Kristina Setyowati, Haiying Liu, David H Waldeck, Jian Chen. Nano letters.
Recent Publications
  1. "The electron spin as a chiral reagent." Ron Naaman, Tzuriel S Metzger, Suryakant Mishra, Brian P Bloom, Naama Goren, Avner Neubauer, Guy Shmul, Jimeng Wei, Shira Yochelis, Francesco Tassinari, Claudio Fontanesi, David H Waldeck, Yossi Paltiel. Angewandte Chemie International Edition.
  2. "Chiral molecules-ferromagnetic interfaces, an approach towards spin controlled interactions." Ron Naaman, David H Waldeck, Yossi Paltiel. Applied Physics Letters.
  3. "Electron Transport and Spin Selectivity in Nucleic Acids and Peptides." David H Waldeck, Edward Beall, Caleb Clever. Meeting Abstracts.
  4. "Spin Selectivity in Photoinduced Charge-Transfer Mediated by Chiral Molecules." John M Abendroth, Dominik M Stemer, Brian P Bloom, Partha Roy, Ron Naaman, David H Waldeck, Paul S Weiss, Prakash Chandra Mondal. ACS nano.
  5. "Chiral molecules and the electron spin." Ron Naaman, Yossi Paltiel, David H Waldeck. Nature Reviews Chemistry.

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