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My Chem/Biochem

Andrew B. Greytak Group Site


  • Greytak, A. B.; Abiodun, S. L.; Burrell, J. M.; Cook, E. N.; Jayaweera, N. P.; Islam, M. M.; Shaker, A. E. Thermodynamics of Nanocrystal–Ligand Binding through Isothermal Titration Calorimetry. Chem. Commun. 2022.

  • Dunlap, J. H.; Jayaweera, N. P.; Pellechia, P. J.; Greytak, A. B. Competitive Anionic Exchange of Thiolate Ligands onto Aqueous Phosphonate-Capped Quantum Dots. J. Phys. Chem. C 2022, 126 (41), 17635–17646.
  • Jayaweera, N. P.; Dunlap, J. H.; Ahmed, F.; Larison, T.; Buzoglu Kurnaz, L.; Stefik, M.; Pellechia, P. J.; Fountain, A. W.; Greytak, A. B. Coordination of Quantum Dots in a Polar Solvent by Small-Molecule Imidazole Ligands. Inorg. Chem. 2022. 61, 28, 10942–10949 DOI:10.1021/acs.inorgchem.2c01494.
  • Ahmed, F.; Kelley, M. L.; Chandrashekhar, M.; Greytak, A. B. Improved Charge Transport in PbS Quantum Dot Thin Films Following Gel Permeation Chromatography Purification. J. Phys. Chem. C 2021, 125 (32), 17796–17805. DOI:10.1021/acs.jpcc.1c04218
  • Abiodun, S. L.; Gee, M. Y.; Greytak, A. B. Combined NMR and Isothermal Titration Calorimetry Investigation Resolves Conditions for Ligand Exchange and Phase Transformation in CsPbBr3 Nanocrystals. J. Phys. Chem. C 2021, 125 (32), 17897–17905. 
  • Ahmed, F.; Dunlap, J. H.; Pellechia, P. J.; Greytak, A. B. A P-Type PbS Quantum Dot Ink with Improved Stability for Solution Processable Optoelectronics. Chem. Commun. 2021, 57 (65), 8091–8094. DOI: 10.1039/D1CC03014K
  • Kelley, M. L.; Simin, G.; Hussain, K.; Khan, A.; Greytak, A. B.; Chandrashekhar, M. V. S. Spatially Resolved Fourier Transform Impedance Spectroscopy: A Technique to Rapidly Characterize Interfaces, Applied to a QD/SiC Heterojunction. Appl. Phys. Lett. 2021, 118 (22), 223102. DOI: 10.1063/5.0046439
  • Kelley, M. L.; Ahmed, F.; Abiodun, S. L.; Usman, M.; Jewel, M. U.; Hussain, K.; zur Loye, H.-C.; Chandrashekhar, M. V. S.; Greytak, A. B. Photoconductive Thin Films Composed of Environmentally Benign AgBiS2 Nanocrystal Inks Obtained through a Rapid Phase Transfer Process. ACS Appl. Electron. Mater. 2021, 3 (4), 1550–1555. DOI: 10.1021/acsaelm.0c01107
  • Abiodun, S. L.; Pellechia, P. J.; Greytak, A. B. Effective Purification of CsPbBr3 Nanocrystals with High Quantum Yield and High Colloidal Stability via Gel Permeation Chromatography. J. Phys. Chem. C 2021, 125 (6), 3463–3471. DOI:10.1021/acs.jpcc.1c00207
  • Gee, M. Y.; Shen, Y.; Greytak, A. B. Isothermal Titration Calorimetry Resolves Sequential Ligand Exchange and Association Reactions in Treatment of Oleate-Capped CdSe Quantum Dots with Alkylphosphonic Acid. J. Phys. Chem. C 2020, 124 (43), 23964–23975. DOI:10.1021/acs.jpcc.0c07338
  • Roberge, A.; Dunlap, J. H.; Ahmed, F.; Greytak, A. B. Size-Dependent PbS Quantum Dot Surface Chemistry Investigated via Gel Permeation Chromatography. Chem. Mater. 2020, 32 (15), 6588–6594. DOI: 10.1021/acs.chemmater.0c02024
  • Kelley, M. L.; Letton, J.; Simin, G.; Ahmed, F.; Love-Baker, C. A.; Greytak, A. B.; Chandrashekhar, M. V. S. Photovoltaic and Photoconductive Action Due to PbS Quantum Dots on Graphene/SiC Schottky Diodes from NIR to UV. ACS Appl. Electron. Mater. 2020, 2 (1), 134–139. DOI: 10.1021/acsaelm.9b00651
  • Dunlap, J. H.; Loszko, A. F.; Flake, R. A.; Huang, Y.; Benicewicz, B. C.; Greytak, A. B. Multiply-Binding Polymeric Imidazole Ligands: Influence of Molecular Weight and Monomer Sequence on Colloidal Quantum Dot Stability. J. Phys. Chem. C 2018, 122 (46), 26756–26763.  DOI: 10.1021/acs.jpcc.8b08984
  • Chava, V. S. N.; Barker, B. G.; Balachandran, A.; Khan, A.; Simin, G.; Greytak, A. B.; Chandrashekhar, M. V. S. High Detectivity Visible-Blind SiF4 Grown Epitaxial Graphene/SiC Schottky Contact Bipolar Phototransistor. Appl. Phys. Lett. 2017, 111 (24), 243504. DOI: 10.1063/1.5009003

  • Barker, B. G.; Chava, V. S. N.; Daniels, K. M.; Chandrashekhar, M. V. S.; Greytak, A. B. Sub-Bandgap Response of Graphene/SiC Schottky Emitter Bipolar Phototransistor Examined by Scanning Photocurrent Microscopy. 2D Mater. 2017, 5 (1), 011003.
    DOI: 10.1088/2053-1583/aa90b1

  • Greytak, A. B.; Tan, R.; Roberts, S. K. Prospects for Rational Control of Nanocrystal Shape Through Successive Ionic Layer Adsorption and Reaction (SILAR) and Related Approaches. In Anisotropic and Shape-Selective Nanomaterials: Structure-Property Relationships; Hunyadi Murph, S. E., Larsen, G. K., Coopersmith, K. J., Eds.; Nanostructure Science and Technology; Springer International Publishing: Cham, 2017; pp 169–232.
    DOI: 10.1007/978-3-319-59662-4_7

  • Roberge, A.; Stein, J. L.; Shen, Y.; Cossairt, B. M.; Greytak, A. B. Purification and In Situ Ligand Exchange of Metal-Carboxylate-Treated Fluorescent InP Quantum Dots via Gel Permeation Chromatography. J. Phys. Chem. Lett. 2017, 8 (17), 4055–4060.
    DOI: 10.1021/acs.jpclett.7b01772

  • Kittikhunnatham, P.; Som, B.; Rassolov, V.; Stolte, M.; Würthner, F.; Shimizu, L. S.; Greytak, A. B. Fluorescence Polarization Measurements to Probe Alignment of a Bithiophene Dye in One-Dimensional Channels of Self-Assembled Phenylethynylene Bis-Urea Macrocycle Crystals. J. Phys. Chem. C 2017, 121 (33), 18102–18109. DOI: 10.1021/acs.jpcc.7b07136

  • Shen, Y.; Gee, M. Y.; Greytak, A. B. Purification Technologies for Colloidal Nanocrystals. Chem. Commun. 2017, 53 (5), 827–841.
    DOI: 10.1039/C6CC07998A 

  • Shen, Y.; Roberge, A.; Tan, R.; Gee, M. Y.; Gary, D. C.; Huang, Y.; Blom, D. A.; Benicewicz, B. C.; Cossairt, B. M.; Greytak, A. B. Gel Permeation Chromatography as a Multifunctional Processor for Nanocrystal Purification and On-Column Ligand Exchange Chemistry. Chem. Sci. 2016, 7 (9), 5671–5679. DOI: 10.1039/C6SC01301E

  • Zhao, X.; Shen, Y.; Adogla, E. A.; Viswanath, A.; Tan, R.; Benicewicz, B. C.; Greytak, A. B.; Lin, Y.; Wang, Q. Surface Labeling of Enveloped Virus with Polymeric Imidazole Ligand-Capped Quantum Dots via the Metabolic Incorporation of Phospholipids into Host Cells. J. Mater. Chem. B 2016, 4 (14), 2421–2427. DOI: 10.1039/C6TB00263C

  • Tan, R.; Shen, Y.; Roberts, S. K.; Gee, M. Y.; Blom, D. A.; Greytak, A. B. Reducing Competition by Coordinating Solvent Promotes Morphological Control in Alternating Layer Growth of CdSe/CdS Core/Shell Quantum Dots. Chem. Mater. 2015, 27 (21), 7468–7480. DOI:10.1021/acs.chemmater.5b03588

  • Viswanath, A.; Paudel, P.; Kittikhunnatham, P.; Green, A. N.; Greytak, A. B.; Benicewicz, B. C. Synthesis of Random Terpolymers Bearing Multidentate Imidazole Units and Their Use in Functionalization of Cadmium Sulfide Nanowires. Polym. Chem. 2015, 6 (39), 7036–7044. DOI:10.1039/C5PY00685F

  • Johnson, C. M.; Pate, K. M.; Shen, Y.; Viswanath, A.; Tan, R.; Benicewicz, B. C.; Moss, M. A.; Greytak, A. B. A Methacrylate-Based Polymeric Imidazole Ligand Yields Quantum Dots with Low Cytotoxicity and Low Nonspecific Binding. Journal of Colloid and Interface Science 2015, 458, 310–314. DOI:10.1016/j.jcis.2015.07.069

  • Shen, Y.; Tan, R.; Gee, M. Y.; Greytak, A. B. Quantum Yield Regeneration: Influence of Neutral Ligand Binding on Photophysical Properties in Colloidal Core/Shell Quantum Dots. ACS Nano 2015, 9 (3), 3345–3359. DOI:10.1021/acsnano.5b00671

  • Ekaterina A. Dolgopolova, Derek E. Williams, Andrew B. Greytak, Allison M. Rice, Mark D. Smith, Jeanette A. Krause, and Natalia B. Shustova. A Bio-inspired Approach for Chromophore Communication: Ligand-to-Ligand and Host-to-Guest Energy Transfer in Hybrid Crystalline Scaffolds. Angew, Chem. Int. Ed. 54, 13639 (2015). DOI:10.1002/anie.201507400

  • Derek E. Williams, Ekaterina A. Dolgopolova, Perry J. Pellechia, Andrei Palukoshka, Thomas J. Wilson, Rui Tan, Josef M. Maier, Andrew B. Greytak, Mark D. Smith, Jeanette A. Krause, and Natalia B. Shustova. Mimic of the Green Fluorescent Protein ß-Barrel: Photophysics and Dynamics of Confined Chromophores Defined by a Rigid Porous Scaffold. J. Am. Chem. Soc. 137, 2223 (2015). DOI:10.1021/ja5131269

  • Anand Viswanath, Yi Shen, Alexandra N. Green, Rui Tan, Andrew B. Greytak, and Brian C. Benicewicz. Copolymerization and Synthesis of Multiply Binding Histamine Ligands for the Robust Functionalization of Quantum Dots. Macromolecules 47, 8137 (2014). DOI:10.1021/ma501955t

  • Derek E. Williams, Joseph A. Rietman, Josef M. Maier, Rui Tan, Andrew B. Greytak, Mark D. Smith, Jeanette A. Krause, and Natalia B. Shustova. Energy Transfer on Demand: Photoswitch-Directed Behavior of Metal–Porphyrin Frameworks. J. Am. Chem. Soc. 136, 11886 (2014). DOI:10.1021/ja505589d

  • 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. 14, 993 (2014). DOI:10.1021/cg401380a
  • Tan, R.; Blom, D. A.; Ma, S.; Greytak, A. B. Probing Surface Saturation Conditions in Alternating Layer Growth of CdSe/CdS Core/Shell Quantum Dots. Chem. Mater. 2013, 25 (18), 3724–3736. DOI:10.1021/cm402148s
  • Shen, Y.; Gee, M. Y.; Tan, R.; Pellechia, P. J.; Greytak, A. B. Purification of Quantum Dots by Gel Permeation Chromatography and the Effect of Excess Ligands on Shell Growth and Ligand Exchange. Chem. Mater. 2013, 25 (14), 2838–2848. DOI:10.1021/cm4012734

ORCID provides a complete list of Professor Greytak's publications

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