个人简介

B.S., 2000, Massachusetts Institute of Technology Ph.D., 2006, Harvard University Postdoctoral, 2006-2010, Massachusetts Institute of Technology Sustainable Carolina Curriculum Award, USC, 2013; ACS-CEI Award for Incorporating Sustainability into Chemistry Education, Committee on Environmental Improvement, American Chemical Society, 2014;

研究领域

Physical

The Greytak lab explores physical and materials chemistry at the liquid-solid interfaces of semiconductors. A strong inspiration for this work is the opportunity to impact fields including energy conversion, energy storage, and bioimaging, with current interest in understanding how the properties of semiconductor nanostructures (colloidal nanocrystals, catalytically-synthesized nanowires, and heterostructures) can be modified by controlling the chemistry at their surfaces. There are two general themes that guide our choice of problems. One is electronic and concerns the motion of charge within nanoscale systems and across interfaces, and how we can learn to stimulate and detect such charge transfer processes from afar. The second is structural and is an attempt to develop synthetic strategies and imaging techniques that can allow us to draw analogies between forms of the same material with different dimensionalities. These themes will be explored in several project areas. Students and postdocs with a variety of academic backgrounds including physical, inorganic, and organic chemistry; condensed matter physics; materials science; and electrical engineering will be able to make strong contributions to the group’s research. Group members can expect to master techniques including chemical vapor deposition, synthetic inorganic and organic (for ligand design) chemistry, scanning and transmission electron microscopy, microfabrication, and photoluminescence imaging and spectroscopy.

近期论文

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Weiwei L. Xu, Mark D. Smith, Jeanette A. Krause, Andrew B. Greytak, Shuguo Ma, Cory M. Read, and Linda S. Shimizu. ""Single Crystal to Single Crystal Polymerization of a Self-Assembled Diacetylene Macrocycle Affords Columnar Polydiacetylenes"". Crystal Growth & Design vol. 14, p. 993 (2014). Rui Tan, Douglas A. Blom, Shuguo Ma, and Andrew B. Greytak. ""Probing surface saturation conditions in alternating layer growth of CdSe/CdS core/shell quantum dots"". Chemistry of Materials vol. 25, p. 3724 (2013). Yi Shen, Megan Y. Gee, Rui Tan, Perry J. Pellechia, Andrew B. Greytak. ""Purification of Quantum Dots by Gel Permeation Chromatography and the Effect of Excess Ligands on Shell Growth and Ligand Exchange"". Chemistry of Materials, vol. 25, p. 2838 (2013). Rebecca C. Somers, Ryan M. Lanning, Preston T. Snee, Andrew B. Greytak, Rakesh K. Jain, Moungi G. Bawendi, and Daniel G. Nocera. ""A nanocrystal-based ratiometric pH sensor for natural pH ranges."" Chemical Science, 3 2980 (2012). Andrew B. Greytak, Peter M. Allen, Wenhao Liu, Jing Zhao, Elizabeth R. Young, Zoran Popović, Brian J. Walker, Daniel G. Nocera, and Moungi G. Bawendi. ""Alternating layer addition approach to CdSe/CdS core/shell quantum dots with near-unity quantum yield and high on-time fractions."" Chemical Science, 3 2028 (2012). Wenhao Liu; Andrew B. Greytak, Jungmin Lee, Cliff R. Wong, Jongnam Park, Lisa F. Marshall, Wen Jiang, Peter N. Curtin, Alice Y. Ting, Daniel G. Nocera, Dai Fukumura, Rakesh K. Jain, Moungi G. Bawendi. ""Compact biocompatible quantum dots via RAFT-mediated synthesis of imidazole-based random copolymer ligand."" J. Am. Chem. Soc.,vol. 132 p. 472 (2010).