个人简介

Brandeis University - B.S. (2004) Stanford University - Ph.D. (2009) University of California Berkeley & Lawrence Berkeley National Laboratory - Postdoc. Research (2009-2012)

研究领域

Inorganic Chemistry/Materials Chemistry/Organic Chemistry

I. Monovalent gold for nanophotonics at visible wavelengths Monovalent gold nanoparticles serve as constituents of artificial molecules, much like atoms form the basis for molecules. We use bottom-up self-assembly to build 3D assemblies of plasmonic nanoparticles in high yield to make nanophotonic building blocks for the manipulation of visible wavelengths. To this end, we exploit the efficacy of quantitative, orthogonal chemical reactions to selectively and efficiently link plasmonic nanoparticles at length scales that are challenging for current lithographic techniques. Some of the potential applications are: Metamaterials. The optical properties of metamaterials depend on the interaction of its sub-wavelength building blocks with light, as opposed to atomic or molecular constituents that usually define the properties of a material. Particles will be templated with rigid organic scaffolds to generate assemblies with higher order multipoles, some of which will satisfy the symmetry requirements for electric and magnetic dipoles. The introduction of a magnetic response in materials at visible wavelengths will allow light to be manipulated in an unprecedented manner. Vacuum Rabi Splitting. The interaction of a single emitter with a plasmonic nanoantenna dimer in the strong coupling regime can give rise to half-matter half-light modes with implication for quantum logic, coherent control of single photons, etc. Antenna- enhanced fluorescence and Raman Scattering. Asymmetric enantioselective synthesis. II. Single molecule studies of the nanoparticle-ligand interface To date, characterization of molecular species on nanocrystal surfaces remains a challenge. The construction of complex sensing systems with specific, reproducible responses to analytes; or the solution based processing of nanocrystals for efficient light emitting diodes or flexible transistors and solar cells, hinges on a complete understanding of the nanocrystal-ligand interface. We intend to use super-resolution fluorescence microscopy to quantitatively and spatially characterize the organic moieties on colloidally synthesized semiconductor nanocrystals; and to examine the effect of ligands on nanoparticle photophysics. The synthesis of labeled ligands that consist of organic fluorophores covalently bound to a nanocrystal binding group will enable the localization of ligands on nanocrystals in a quantitative manner, at millisecond timescales, at the single particle level. Such spatial and temporal resolution will provide a deep understanding of the effect of ligands on nanocrystal photophysics.

近期论文

查看导师新发文章 （温馨提示：请注意重名现象，建议点开原文通过作者单位确认）

A. P. Dagg, Z. Huang, M. A. Marks, D. Zhou, M. Chawla, M. L. Tang, "Synthetic Control of Isolated, Single Functional Groups on Silica Surfaces," Langmuir, 30, 7098, 2014. http://dx.doi.org/10.1021/la501231v X. Li, V. M. Nichols, D. Zhou, C. Lim, G. S. H. Pau, C. J. Bardeen, M. L. Tang, "Observation of Multiple, Identical Binding Sites in the Exchange of Carboxylic Acid Ligands with CdS Nanocrystals," Nano Lett., 14, 3382, 2014. http://dx.doi.org/10.1021/nl500885t Publications prior to UCR H.-A. Chen, C.-L. Hsin, Y.-T. Huang, M. L. Tang, S. Dhuey, S. Cabrini, W.-W. Wu, S. R. Leone, " Measurement of Interlayer Screening Length of Layered Graphene by Plasmonic Nanostructure Resonances, " J. Phys. Chem. C., 117, 22211, 2013. M. L. Tang*, D. C. Grauer*, B. Lassalle-Kaiser, V. Yachandra, L. Amirav, J. R. Long, J. Yanko, A. P. Alivisatos, "Structural and electronic study of an amorphous MoS3 hydrogen generation catalyst on a quantum controlled photosensitizer," Angew. Chem. Int. Ed. 50, 10203, 2011. (chosen by the Editors as a "Hot Paper" for its "importance in a rapidly evolving field of high current interest".) M. L. Tang*, N. Liu*, J. A. Dionne, A. P. Alivisatos, "Observations of shape-dependent Hydrogen Uptake Trajectories from Single Nanocrystals." J. Am. Chem. Soc. 133, 13220, 2011. N. Liu*, M. L. Tang*, M. Hentschel*, H. Giessen, A. P. Alivisatos, "Nanoantenna-enhanced Gas Sensing in a Single Tailored Nanofocus." Nature Mater. 10, 631, 2011. (This was selected as the cover for the August 2011 issue). Y. Sun, J. P. Bigi, N. A. Piro, M. L. Tang, J. R. Long, C. J. Chang, "Molecular Cobalt Pentapyridine Catalysts for Generating Hydrogen from Water." J. Am. Chem. Soc. 133, 9212, 2011. M. L. Tang, Z. Bao, "Halogenated Materials as Organic Semiconductors." Chem. Mater. 22, 446, 2011. (invited review) S. C. B Mannsfeld, M. L. Tang, Z. Bao, "Thin Film Structure of Triisopropylsilylethynyl-Functionalized Pentacene and Tetraceno[2,3-b]thiophene from Grazing Incidence X-ray Diffraction." Adv. Mater. 23, 127, 2011. T. Okamoto, C. C. Reese, M. L. Senatore, M. L. Tang, Y. Jiang, S. R. Parkin, Z. Bao, "2,9-dibromopentacene: Synthesis and the Role of Substituent and Symmetry on Solid-State Order." Synth. Metal. 160, 2447, 2010. H. A. Becerril, R. M. Stoltenberg, M. L. Tang, M. E. Roberts, Z-F. Liu, Y-S. Chen, D-H. Kim, B-L. Lee, S. Lee, Z. Bao, "Fabrication and Evaluation of Solution-Processed Reduced Graphene Oxide Electrodes for p- and n-channel Bottom-Contact Organic Thin-Film Transistors." ACS Nano. 4, 6343, 2010. Y. Jiang, T. Okamoto, H. A. Becerril, S. Hong, M. L. Tang, A. C. Mayer, J. E. Parmer, M. D. McGehee, Z. Bao, "Anthradithiophene-Containing Copolymers for Thin-Film Transistors and Photovoltaic Cells." Macromolc. 43, 6361, 2010. R. Mondal, N. Miyaki, H. A. Becerril, J. E. Norton, J. E. Parmer, A. C. Mayer, M. L. Tang, J. L. Bredas, M. D. McGehee, Z. Bao, "Synthesis of Acenaphthyl and Phenanthrene Based Fused-Aromatic Thienopyrazine Co-Polymers for Photovoltaic and Thin Film Transistor Applications." Chem. Mater. 21, 3618, 2009. P-L. T. Boudreault, S. Wakim, M. L. Tang, Y. Tao, Z. Bao and M. Leclerc, "New Indolo[3,2-b]carbazole derivatives for Field-Effect Transistors Applications." J. Mater. Chem. 19, 2921, 2009. H. A. Becerril, N. Miyaki, M. L. Tang, R. Mondal, Y-S. Sun, A. C. Mayer, J. E. Parmer, M. D. McGehee, Z. Bao, "Transistor and Solar Cell Performance of Donor-Acceptor Low Bandgap Copolymers bearing an Acenaphtho[2,3-b]thieno[3,4-e]pyrazine (ACTP) motif." J. Mater. Chem. 19, 591, 2009. M. E. Roberts, S. C. B Mannsfeld, M. L. Tang, Z. Bao, "Influence of Molecular Structure and Film Properties on the Water-Stability and Sensor Characteristics of Organic Transistors." Chem. Mater. 20, 7332, 2008. M. L. Tang, J. H. Oh, A. D. Reichardt, Z. Bao, "Chlorination: a General Route Towards Electron Transport in Organic Semiconductors." J. Am. Chem. Soc. 131(10), 3733, 2009. M. L. Tang, A. D. Reichardt, P. Wei, Z. Bao, "Correlating Carrier Type with Frontier Molecular Orbital Energy Levels in Organic Thin Film Transistors of Functionalized Acene Derivatives." J. Am. Chem. Soc. 131(14), 5264, 2009. M. L. Tang, S. C. B. Mannsfeld, Y-S. Sun, H. A. Becerril, Z. Bao, "Pentaceno[2,3-b]thiophene- a Hexacene Analog for Organic Thin Film Transistors." J. Am. Chem. Soc. 131(3), 882, 2009. M. L. Tang, A. D. Reichardt, T. Siegrist, S. C. B Mannsfeld, Z. Bao, "Trialkylsilyl Ethynyl Functionalized Tetraceno[2,3-b]thiophene and Anthra[2,3-b]thiophene Organic Transistors." Chem. Mater. 20, 4669, 2008.