Javier Vela

 


Home | Research Interests | Group Page | Selected Publications

Selected publications:

Lin, C.-C.; Tan, S. J.; Vela, J. “Chalcogenide and Pnictide Nanocrystals from the Silylative Deoxygenation of Metal Oxides.” J. Mater. Chem. A. 2017, 5, 20351–20358.

Boote, B.; Men, L.; Andaraarachchi, H.; Bhattacharjee, U.; Petrich, J.; Vela, J.; Smith, E. “Germanium–Tin/Cadmium Sulfide Core/Shell Nanocrystals with Enhanced Near-Infrared Photoluminescence.” Chem. Mater. 2017, 29, 6012–6021.

Luo, L.; Men, L.; Liu, Z.; Mudryk, Y.; Zhao, X.; Yao, Y.; Park, J. M.; Shinar, R.; Shinar, J.; Ho, K.-M.; Perakis, I. E.; Vela, J.; Wang, J. “Ultrafast Terahertz Snapshots of Excitonic Rydberg States and Electronic Coherence in an Organometal Halide Perovskite.” Nature Commun. 2017, 8, 15565-1–15565-8.

Rosales, B. A.; Hanrahan, M. P.; Boote, B. W.; Rossini, A. J.; Smith, E. A.; Vela, J. “Lead Halide Perovskites: Challenges and Opportunities in Advanced Synthesis and Spectroscopy.” ACS Energy Lett. 2017, 2, 906–914.

Bhattacharjee, U.; Men, L.; Rosales, B. A.; Alvarado, S. A.; Vela, J.; Petrich, J. W. “Using ATTO Dyes to Probe the Photocatalytic Activity of Au-CdS Nanoparticles.” J. Phys. Chem. C2017, 121, 676–683.

Men, L.; White, M. A.; Andaraarachchi, H.; Rosales, B. A.; Vela, J. “Synthetic Development of Low Dimensional Materials.” Chem. Mater. 2017, 29, 168–175.

Freppon, D. J.; Men, L.; Burkhow, S. J.; Petrich, J. W.; Vela, J.; Smith, E. A. “Photophysical Properties of Wavelength-Tunable Methylammonium Lead Halide Perovskite Nanocrystals.” J. Mater. Chem. C 2017, 5, 118–126.

White, M. A.; Miller, G. J.; Vela, J. “Polytypism and Unique Site Preference in LiZnSb: A Superior Thermoelectric Reveals its True Colors.” J. Am. Chem. Soc. 2016, 138, 14574–14577.

Rosales, B. A.; Men, L.; Cady, S. D.; Hanrahan, M. P.; Rossini, A. J.; Vela, J. “Persistent Dopants and Phase Segregation in Organolead Mixed-Halide Perovskites.” Chem. Mater. 2016, 28, 6848–6859. (Journal cover article)

Thompson, M. J.; Blakeney, K. J.; Cady, S. D.; Reichert, M. D.; Del Pilar-Albaladejo, J.; White, S.; Vela, J. “Cu2ZnSnS4 Nanorods Doped with Tetrahedral, High Spin Transition Metal Ions: Mn2+, Co2+, and Ni2+.” Chem. Mater. 2016, 28, 1668–1677.

White, M. A.; Thompson, M. J.; Miller, G. J.; Vela, J. “Got LiZnP? Solution Phase Synthesis of Filled Tetrahedral Semiconductors in the Nanoregime.” Chem. Commun. 2016, 3497–3499.

Andaraarachchi, H. P.; Thompson, M. J.; White, M. A.; Fan, H.-J.; Vela, J. “Phase-Programmed Nanofabrication: Effect of Organophosphite Precursor Reactivity on the Evolution of Nickel and Nickel Phosphide Nanocrystals.” Chem. Mater. 2015, 27, 8021–8031.

Alvarado, S. R.; Shortt, I.; Fan, H.-J.; Vela, J. “Assessing Phosphine-Chalcogen Bond Energetics from Calculations.” Organometallics 2015, 34, 4023–4031.

Reichert, M. D.; White, A. M.; Thompson, M. J.; Miller, G. J.; Vela, J. “Preparation and Instability of Nanocrystalline Cuprous Nitride.” Inorg. Chem. 2015, 54, 6356–6362.

Chen, K.; Lin, C.-C.; Vela, J.; Fang, N. “Multishell Au/Ag/SiO2 Nanorods with Tunable Optical Properties as Single Particle Orientation and Rotational Tracking Probes.” Anal. Chem. 2015, 87, 4096–4099.

Zhu, F.; Men, L.; Guo, Y.; Zhu, Q.; Bhattacharjee, U.; Goodwin, P. M.; Petrich, J. W.; Smith, E. A.; Vela, J. “Shape Evolution and Single Particle Luminescence of Organometal Halide Perovskite Nanocrystals.” ACS Nano 2015, 9, 2948–2959.

Lin, C.-C.; Guo, Y.; Vela, J. “Microstructure Effects on the Water Oxidation Activity of Co3O4-Porous Silica Nanocomposites.” ACS Catal. 2015, 5, 1037–1044.

Dilsaver, P. S.; Reichert, M. D.; Hallmark, B. L.; Thompson, M. J.; Vela, J. “Cu2ZnSnS4-Au Hetero-Structures: Toward Greener Chalcogenide Photocatalysts.” J. Phys. Chem. C 2014, 118, 21226–21234.

Guo, Y.; Rowland, C. E.; Schaller, R. D.; Vela, J. “Near-Infrared Photoluminescence Enhancement in Ge/CdS and Ge/ZnS Core/Shell Nanocrystals: Utilizing IV/II-VI Semiconductor Epitaxy.” ACS Nano 2014, 8, 8334–8343.

Reichert, M. D.; Lin, C.-C.; Vela, J. “How Robust are Semiconductor Nanorods? Investigating the Stability and Chemical Decomposition Pathways of Photoactive Nanocrystals.” Chem. Mater. 2014, 26, 3900–3908.

Ha, J. W.; Ruberu, T. P. A.; Han, R.; Dong, B.; Vela, J.; Fang, N. “Super-Resolution Mapping of Photo-generated Electron and Hole Separation in Single Metal-Semiconductor Nanocatalysts.” J. Am. Chem. Soc. 2014, 136, 1398–1408.

Nelson, N. C.; Ruberu, T. P. A.; Reichert, M. D.; Vela, J. “Templated Synthesis and Chemical Behavior of Nickel Nanoparticles within High Aspect Ratio Silica Capsules.” J. Phys. Chem. C 2013, 117, 25826–25836.

Thompson, M. J.; Ruberu, T. P. A.; Blakeney, K. J.; Torres, K. V.; Dilsaver, P. S.; Vela, J. “Axial Composition Gradients and Phase Segregation Regulate the Aspect Ratio of Cu2ZnSnS4 Nanorods.” J. Phys. Chem. Lett. 2013, 4, 3918–3923.

Guo, Y.; Alvarado, S. R.; Barclay, J. D.; Vela, J. “Shape-Programmed Nanofabrication: Understanding the Reactivity of Dichalcogenide Precursors.” ACS Nano 2013, 7, 3616–3626.

Vela, J. “Molecular Chemistry to the Fore: New Insights into the Fascinating World of Photoactive Colloidal Semiconductor Nanocrystals.” J. Phys. Chem. Lett. 2013, 4, 653–668. (Journal cover article!)

Lesoine, M. D.; Bhattacharjee, U.; Guo, Y.; Vela, J.; Petrich, J. W.; Smith, E. A. “Subdiffraction, Luminescence-Depletion Imaging of Isolated, Giant, CdSe/CdS Nanocrystal Quantum Dots.” J. Phys. Chem. C 2013, 117, 3662–3667.

Tavasoli, E.; Guo, Y.; Kunal, P.; Grajeda, J.; Gerber, A.; Vela, J. “Surface Doping Quantum Dots with Chemically-Active Native Ligands: Controlling Valence without Ligand Exchange.” Chem. Mater. 2012, 24, 4231–4241.

Ruberu, T. P. A.; Nelson, N. C.; Slowing, I. I.; Vela, J. “Selective Alcohol Dehydrogenation and Hydrogenolysis with Semiconductor-Metal Photocatalysts: Toward Solar-to-Chemical Energy Conversion of Biomass-Relevant Substrates.” J. Phys. Chem. Lett. 2012, 3, 2798–2802.

Ruberu, T. P. A.; Albright, H. R.; Callis, B.; Ward, B.; Cisneros, J.; Fan, H.-J.; Vela, J. “Molecular Control of the Nanoscale: Effect of Phosphine Chalcogenide Reactivity on CdS-CdSe Nanocrystal Composition and Morphology.” ACS Nano 2012, 6, 5348–5359.

Alvarado, S. R.; Guo, Y.; Ruberu, T. P. A.; Bakac, A.; Vela, J. “Photochemical vs. Thermal Synthesis of Cobalt Oxyhydroxide Nanocrystals.” J. Phys. Chem. C 2012, 116, 10382–10389.

Marchuk, K.; Guo, Y.; Sun, W.; Vela, J.; Fang, N. “High-Precision Tracking with Non-blinking Quantum Dots Resolves Nanoscale Vertical Displacement.” J. Am. Chem. Soc. 2012, 134, 6108–6111.

Guo, Y.; Marchuk, K.; Sampat, S.; Abraham, R.; Fang, N.; Malko, A.; Vela, J. “Unique Challenges Accompany Thick-Shell CdSe/nCdS (n>10) Nanocrystal Synthesis.” J. Phys. Chem. C 2012, 116, 2791–2800.

Alemseghed, M. G.; Ruberu, T. P. A.; Vela, J. “Controlled Fabrication of Colloidal Semiconductor-Metal Hybrid Heterostructures: Site Selective Metal Photo Deposition.” Chem. Mater. 2011, 23, 3571–3579.

Ruberu, T. P. A.; Vela, J. “Expanding the One-Dimensional CdS-CdSe Composition Landscape: Axially Anisotropic CdS1-xSex Nanorods.” ACS Nano 2011, 5, 5775–5784.

Malko, A.; Park, Y.-S.; Sampat, S.; Galland, C.; Vela, J.; Chen, Y.; Hollingsworth, J.; Klimov, V.; Htoon, H. “Pump-Intensity- and Shell-Thickness-Dependent Evolution of Photoluminescence Blinking in Individual Core/Shell CdSe/CdS Nanocrystals.” Nano Lett. 2011, 11, 5213–5218.

Park, Y.-S.; Malko, A. V.; Vela, J.; Chen, Y.; Ghosh, Y.; García-Santamaría, F.; Hollingsworth, J. A.; Klimov, V. I.; Htoon, H. “Near-Unity Biexciton Emission Quantum Yields in Individual CdSe/CdS Nanocrystals Revealed by Two-Photon-Correlation and Photoluminescence-Saturation Measurements.” Phys. Rev. Lett. 2011, 106, 187401–1-4.

Vela, J.; Htoon, H.; Chen, Y.; Park, Y.-S.; Ghosh, Y.; Goodwin, P.; Werner, J.; Wells, N. P.; Casson, J. L.; Hollingsworth, J. A. “Effect of Shell Thickness and Composition on Blinking Suppression and the Blinking Mechanism in Giant CdSe/CdS Nanocrystal Quantum Dots.” J. Biophoton. 2010, 3, 706–717.

Htoon, H.; Malko, A.; Bussian, D.; Vela, J.; Hollingsworth, J.; Chen, Y.; Klimov, V. “Highly Emissive Multiexcitons in Steady-State Photoluminescence of Individual Giant CdSe/CdS Core/Shell Nanocrystals.” Nano Lett. 2010, 10, 2401–2407.

García-Santamaría, F.; Chen, Y.; Vela, J.; Schaller, R. D.; Hollingsworth, J. A.; Klimov, V. I. "Suppressed Auger Recombination in Giant Nanocrystals Boosts Optical Gain Performance.” Nano Lett. 2009, 9, 3482–3488.

Chen, Y.; Vela, J.; Htoon, H.; Casson, J. L.; Werder, D. J.; Bussian, D. A.; Klimov, V. I.; Hollingsworth, J. A. "Giant Multishell CdSe Nanocrystal Quantum Dots with Suppressed Blinking.” J. Am. Chem. Soc. 2008, 130, 5026–5027.

Vela, J.; Lief, G.; Shen, Z.; Jordan, R. F. “Ethylene Polymerization by Palladium Alkyl Complexes Containing Bis(aryl)phosphino-toluenesulfonate Ligands.” Organometallics 2007, 26, 6624–6635.

Luo, S.; Vela, J.; Lief, G. R.; Jordan, R. F. "Copolymerization of Ethylene and Alkyl Vinyl Ethers by a (Phosphine-sulfonate)PdMe Catalyst." J. Am. Chem. Soc. 2007, 129, 8946–8947.

Vela, J.; Zhu, L.; Flaschenriem, C. J.; Brennessel, W. W.; Lachicotte, R. J.; Holland, P. L. "Macrocyclic Binucleating β-Diketiminate Ligands and their Lithium, Aluminum, and Zinc Complexes." Organometallics 2007, 26, 3416–3423.

Vela, J.; Cirera, J.; Smith, J. M.; Lachicotte, R. J.; Flaschenriem, C. J.; Alvarez, S.; Holland, P. L. “Quantitative Geometric Descriptions of the Belt Iron Atoms of the Iron-Molybdenum Cofactor of Nitrogenase and Synthetic Iron(II) Model Complexes.” Inorg. Chem. 2007, 46, 60–71.

 

For a complete list of publications, please visit:
http://www.public.iastate.edu/~vela/Vela_research_group/Publications.html