Andrew Crowther

Assistant Professor of Chemistry

Andrew C. Crowther joined the Barnard College Department of Chemistry in 2012.  Professor Crowther is a physical chemist interested in the fundamental molecular processes and properties of nanomaterials.  

Prior to joining Barnard, Crowther received his Ph.D. at the University of Wisconsin-Madison where he used ultrafast spectroscopy to study the role of molecular complexes in CN radical reactions in solution.  During his postdoctoral research at Columbia University, Crowther used various spectroscopic techniques to study charge-transfer dynamics between graphene and absorbed molecular species.

At Barnard, undergraduate research students in the Crowther Laboratory study the vibrational structure of nanocrystals and the chemistry of carbon-based nanostructures, particularly the two-dimensional carbon material graphene.  The Crowther Laboratory uses micro-Raman and absorption spectroscopies to learn how chemistry can affect graphene's electronic and optical properties. 

Funding

American Chemical Society Petroleum Research Fund 

Barnard College Department of Chemistry

Barnard College Hughes Science Pipeline Project (HHMI)

Barnard College Mellon Environmental Science Grant

Barnard College Office of the Provost

Academic Focus: 

Chemistry of Graphene

Raman Spectroscopy

Reaction Dynamics

Vibrational Properties of Nanomaterials

Courses: 

CHEM BC 3253x  Quantum Chemistry

CHEM BC 3252y  Thermodynamics and Kinetics

CHEM BC 3365x  Integrated Chemistry Laboratory

CHEM BC 3368y  Integrated Chemistry Laboratory II

Awards & Honors: 

Emily Gregory Teaching Award, Barnard College, nominated (2015) 

Vilas Travel Fellowship, University of Wisconsin (2007)

McElvain Travel Grant, Department of Chemistry, University of Wisconsin (2006)

McElvain Award, Department of Chemistry, University of Wisconsin (2002)

National Science Foundation Graduate Research Fellowship (2002-2005)

Phi Beta Kappa (2002)

Sigma Xi (2002)

Washington University Department of Chemistry Hypercube Scholar Award (2002)

Golden Key National Honor Society (2001)

Florence Moog Scholarship (2000-2002)

Lisolette Dieckmann Scholarship (1998-2002)

Goldwater Fellowship Nominee (1999)

Professional Affiliations: 

American Chemical Society

American Physical Society

Phi Beta Kappa

Presentations / Recent Lectures: 

Oral Presentations

“The Chemistry of Graphene: A Versatile Two-Dimensional Carbon Material”, Siena College, March 4, 2016.  (Invited Talk)

“The Chemistry of Graphene: A Versatile Two-Dimensional Carbon Material”, Union College, March 3, 2016.  (Invited Talk)

“The Chemistry of Graphene: A Versatile Two-Dimensional Carbon Material”, Smith College, February 11, 2016.  (Invited Talk)

“Raman Spectroscopic Study of Graphene-Halogen Reaction Dynamics in the Gas Phase and in Solution”, College of Charleston, October 9, 2014. (Invited)

“Strong Charge-Transfer Chemical Doping of Graphene by NO2”, Molecular Reaction Dynamics Symposium, University of Wisconsin-Madison, May 25, 2012. (Invited)

“Charge-Transfer Chemical Doping of Graphene”, Air Force Office of Scientific Research Multidisciplinary University Research Initiative (MURI) Graphene Meeting, Cornell University, May 13, 2011. 

"Control of Graphene Fermi Level: Charge-Transfer Chemical Doping by Intercalation and Adsorption”, Air Force Office of Scientific Research Multidisciplinary University Research Initiative (MURI) Graphene Seminar, Cornell University, December 2, 2010. (Invited)

Poster Presentations (undergraduate co-authors italicized)

Katherine Z. Rinaldi, Jessie Karten, Rachel Dziatko, Isabel Klein, Blanka E. Janicek, and Andrew C. Crowther, “Halogen-Graphene Reaction Dynamics in Solution”, Dynamics of Surfaces Gordon Conference, August 9-14, 2015.

Jessie L. Karten, Blanka E. Janicek, and Andrew C. Crowther, “Raman Spectroscopic Study of Solvent-Mediated Electron-Transfer Chemical Doping of Graphene”, 249th American Chemical Society National Meeting, March 22-26, 2015.

Katherine Z. Rinaldi, Nilam V. Patel, Shelley Ramrattan, and Andrew C. Crowther, “Raman Spectroscopic Study of Graphene Photochlorination Dynamics in the Gas Phase and in Solution”, 249th American Chemical Society National Meeting, March 22-26, 2015.

Nilam V. Patel, Evan O’Brien, Xavier Roy, and Andrew C. Crowther, “Charge-Transfer in Fullerene-Molecular Cluster Co-Crystals”, 249th American Chemical Society National Meeting, March 22-26, 2015.

Blanka E. Janicek, Katherine Z. Rinaldi, Shelley Ramrattan, and Andrew C. Crowther, “Halogen-Graphene Reaction Dynamics in Solution”, Chemistry and Physics of Graphitic Carbon Materials Gordon Conference, June 15-20, 2014.

Blanka E. Janicek, Katherine Z. Rinaldi, Shelley Ramrattan, and Andrew C. Crowther, “Raman Spectroscopic Study of Graphene-Halogen Reaction Dynamics”, 247th American Chemical Society National Meeting, March 16-20, 2014.

Xavier Roy, Chul-Ho Lee, Andrew C. Crowther, Christine L. Schenck, Tiglet Besara, Tatsuo Goko, Yasutomo Uemurra, Roger A. Lalancette, Theo Siegrist, Peter W. Stephens, Louis E. Brus, Philip Kim, Michael L. Steigerwald, and Colin Nuckolls, “Charge-Transfer in Fullerence-Molecular Cluster Co-Crystals”, Clusters, Nanocrystals, & Nanostructures Gordon Conference, August 4-9, 2013.

Andrew C. Crowther, Naeyoung Jung, Amanda Ghassaei, Stephen Dacek, and Louis E. Brus, “Strong Charge-Transfer Chemical Hole Doping by NO2, I2, and Br2”, Chemistry and Physics of Graphitic Carbon Materials Gordon Conference, June 17-22, 2012.

Andrew C. Crowther, Naeyoung Jung, Amanda Ghassaei, and Louis E. Brus, “Controlling the Graphene Fermi Level: Chemical Doping by Intercalation and Adsorption”, Air Force Office of Scientific Research Multidisciplinary University Research Initiative (MURI) Grant Review Meeting, October 27-30, 2010.

Andrew C. Crowther, Naeyoung Jung, Amanda Ghassaei, and Louis E. Brus, “Electron-Transfer Chemical Doping of Graphene”, Electron Donor-Acceptor Interactions Gordon Conference, August 8-13, 2010. 

Publications: 

Undergraduate co-authors bold italicized 

1) Alexander N. Beecher, Rachel A Dziatko, Michael L. Steigerwald, Jonathan S. Owen, and Andrew C. Crowther, “Transition from Molecular Vibrations to Phonons in Atomically-Precise Cadmium Selenide Quantum Dots”, Journal of the American Chemical Society (in press).

2) Bonnie Choi, Jaeeun Yu, Daniel W. Paley, M. Tuan Trinh, Maria V. Paley, Jessica M. Karch, Andrew C. Crowther, Chul-Ho Lee, Roger A. Lalancette, Xiaoyang Zhu, Philip Kim, Michael L. Steigerwald, Colin Nuckolls, and Xavier Roy, “van der Waals Solids from Self-Assembled Nanoscale Building Blocks”, Nano Letters, 16, 1445-1449 (2016).

3) Chul-Ho Lee, Lian Liu, Christopher Bejger, Ari Turkiewicz, Tatsuo Goko, Carlos J. Arguello, Benjamin A. Frandsen, Sky C. Cheung, Teresa Medina, Timothy J. S. Munsie, Robert D’Ortenzio, Graeme M. Luke, Tiglet Besara, Roger A. Lalancette, Theo Siegrist, Peter W. Stephens, Andrew C. Crowther, Louis E. Brus, Yutaka Matsuo, Eiichi Nakamura, Yasutomo J. Uemura, Philip Kim, Colin Nuckolls, Michael L. Steigerwald, and Xavier Roy, “Ferromagnetic Ordering in Superatomic Solids”, Journal of the American Chemical Society, 136, 16926-16931 (2014).

4) Zheyuan Chen, Pierre Darancet, Lei Wang, Andrew C. Crowther, Yuanda Gao, Cory R. Dean, Takashi Taniguchi, Kenji Watanabe, James Hone, Chris A. Marianetti, and Louis E. Brus, “Physical Adsorption and Charge Transfer of Molecular Br2 on Graphene”, ACS Nano, 8, 2943-2950 (2014).

5) Xavier Roy, Chul-Ho Lee, Andrew C. Crowther, Christine L. Schenck, Tiglet Besara, Roger A. Lalancette, Theo Siegrist, Peter W. Stephens, Louis E. Brus, Philip Kim, Michael L. Steigerwald, and Colin Nuckolls, “Nanoscale Atoms in Solid State Chemistry”, Science 341, 157 (2013)

6) Elizabeth S. Thrall, Andrew C. Crowther, Zhonghua Yu, and Louis E. Brus, “R6G on Graphene: High Raman Detection Sensitivity, Yet Decreased Raman Cross-Section”, Nano Letters, 12, 1571-77 (2012).

7) Andrew C. Crowther, Amanda Ghassaei, Naeyoung Jung, and Louis E. Brus, “Strong Charge-Transfer Doping of 1 to 10 Layer Graphene by NO2”, ACS Nano, 6, 1865-75 (2012).

8) Naeyoung Jung, Bumjung Kim, Andrew C. Crowther, Namdong Kim, Colin Nuckolls, and Louis Brus, “Optical Reflectivity and Raman Scattering in Few-Layer-Thick Graphene Highly doped by K and Rb”, ACS Nano, 5, 5708-16 (2011).

9) Andrew C. Crowther§, Naeyoung Jung§, Namdong Kim, Philip Kim, and Louis Brus, “Raman Enhancement on Graphene: Adsorbed and Intercalated Molecular Species”, ACS Nano, 4, 7005-13 (2010).  §These authors contributed equally to this work.

10) Stacey L. Carrier, Thomas J. Preston, Maitreya Dutta, Andrew C. Crowther, and F. Fleming Crim, “Ultrafast Observation of Isomerization and Complexation in the Photolysis of Bromoform in Solution”, J. Phys. Chem. A., 114, 1548-55 (2010).

11) Andrew C. Crowther, Stacey L. Carrier, Thomas J. Preston, and F. Fleming Crim, "Time-Resolved Studies of the Reactions of CN Radical Complexes with Alkanes, Alcohols, and Chloroalkanes", J. Phys. Chem. A., 113, 3758-64 (2009).

12) Andrew C. Crowther, Stacey L. Carrier, Thomas J. Preston, and F. Fleming Crim, "Time-Resolved Studies of CN Radical Reactions and the Role of Complexes in Solution", J. Phys. Chem. A., 112, 12081-89 (2008).

13) Joshua P. Darr, Andrew C. Crowther, Richard A. Loomis, Sara E. Ray, and Anne B. McCoy, "Probing the Dependence of Long-Range, Four-Atom Interactions on Intermolecular Orientation. 1. Molecular Hydrogen and Iodine Monochloride", J. Phys. Chem. A., 111, 13387-96 (2007).

14) Leonid Sheps, Andrew C. Crowther, Stacey L. Carrier, and F. Fleming Crim, "Time-Resolved Spectroscopic Study of the Reaction Cl + n-C5H12 → HCl + C5H11 in Solution", J. Phys. Chem. A., 110, 3087-92 (2006).

15) Leonid Sheps, Andrew C. Crowther, Christopher G. Elles, and F. Fleming Crim, "Recombination Dynamics and Hydrogen Abstraction Reactions of Chlorine Radicals in Solution", J. Phys. Chem. A, 109, 4296-4302 (2005).

16) Joshua P. Darr, Andrew C. Crowther, and Richard A. Loomis, "Direct measurement of the binding energy of the linear He-I(35,37)Cl(X) isotopomers", Chem. Phys. Lett., 378, 359-67 (2003).

Contact: 

611A Altschul Hall

212-854-8461

acrowthe at barnard.edu
 

Department: 
Education: 

A.B. ,Washington University in St. Louis

Ph.D., University of Wisconsin - Madison

Advisor:  F. Fleming Crim

Postdoctoral, Columbia University

Advisor: Louis E. Brus