Recent Publications (click on title for link)

K. T. Early, K. D. McCarthy, N. I. Hammer, M. Y. Odoi, R. Tangirala, T. Emrick, and M. D. Barnes, "Blinking Suppression and Intensity Recurrences in Single CdSe-oligo(phenylene vinylene) Nanostructures: Experiment and Kinetic Model," Nanotechnology (in press, 2007)

H. P. Rathnayake, A. Cirpan, F. E. Karasz, M. Y. Odoi, N. I. Hammer, M. D. Barnes, and P. M. Lahti, "Luminescence of Molecular and Block Copolymeric 2,7-Bis(phenylethenyl)-fluorenones; Identifying Green-Band Emitter Sites in a Fluorene-Based Luminophore," Chemistry of Materials, 19, 3267 (2007)

M. Y. Odoi, N. I. Hammer, H. P. Rathnayake, P. M. Lahti, and M. D. Barnes, "Single-Molecule Studies of a Model Fluorenone," ChemPhysChem, 8, 1481 (2007)

M. Y. Odoi, N. I. Hammer, K. T. Early, K. D. McCarthy, R. Tangirala, T. Emrick, and M. D. Barnes, "Fluorescence Lifetimes and Correlated Photon Statistics from Single CdSe/Oligo(phenylene vinylene) Composite Nanostructures," Nano Letters ASAP, (2007)

R. Hassey, E. Swain, N. I. Hammer, D. Venkataraman, and M. D. Barnes, "Probing the Chiroptical Response of a Single Molecule," Science, in press (2006).

N. I. Hammer, K. T. Early, K. Sill, M. Y. Odoi, T. Emrick, and M. D. Barnes, "Coverage-mediated suppression of blinking in solid state quantum dot-conjugated organic composite nanostructures," Journal of Physical Chemistry B, 110, 14167, (2006). (Cover Article)

M. Y. Odoi, N. I. Hammer, K. Sill, T. Emrick, and M. D. Barnes, "Observation of enhanced energy transfer in individual quantum dot-oligophenylene vinylene nanostructures," J. Am. Chem. Soc.128, 3506-3507 (2006).

M. D. Barnes, P. S. Krstic, P. Kumar, A. Mehta, and J. C. Wells, "Far-field modulation of fluorescence decay rates in pairs of oriented semiconducting polymer nanostructures," Phys. Rev. B 71, 241303 (2005).

M. D. Barnes, A. Mehta, P. Kumar, B. G. Sumpter, and D. W. Noid, "Confinement effects on the structure and dynamics of polymer systems from the mesoscale to the nanoscale," J. Pol. Sci. B 43, 1571-1590 (2005).

B. G. Sumpter, P. Kumar, A. Mehta, M. D. Barnes, W. A. Shelton, and R. J. Harrison, "Computational study of the structure, dynamics, and photophysical properties of conjugated polymers and oligomers under nanoscale confinement," J. Phys. Chem. B 109, 7671-7685 (2005).

J. I. Gonzalez, T. H. Lee, M. D. Barnes, Y. Antoku, and R. M. Dickson, "Quantum mechanical single-gold-nanocluster electroluminescent light source at room temperature," Phy. Rev. Lett. 93, 147402 (2004). 

P. Kumar, A. Mehta, S. M. Mahurin, S. Dai, M. D. Dadmun, B. G. Sumpter, and M. D. Barnes, "Formation of oriented nanostructures from single molecules of conjugated polymers in microdroplets of solution: The role of solvent," Macromol. 37, 6132-6140 (2004)

T. H. Lee, P. Kumar, A. Mehta, K. W. Xu, R. M. Dickson, and M. D. Barnes, "Oriented semiconducting polymer nanostructures as on-demand room-temperature single-photon sources," App. Phys. Lett. 85, 100-102 (2004).

P. Kumar, T. H. Lee, A. Mehta, B.G. Sumpter, R. M. Dickson, and M. D. Barnes, "Photon antibunching from oriented semiconducting polymer nanostructures," J. Am. Chem. Soc. 126, 3376-3377 (2004).

S. M. Mahurin, S. Dai, and M. D. Barnes, "Probing the diffusion of a dilute dye solution in mesoporous glass with fluorescence correlation spectroscopy," J. Phys. Chem. B 107, 13336-13340 (2003). 

B. G. Sumpter, D. W. Noid, and M. D. Barnes, "Recent Developments in the formation, characterization, and simulation of micron and nanoscale droplets of amorphous polymer blends and semi-crystalline polymers," Polymer 44, 4389-4403 (2003). [Feature Article]

A. Mehta, P. Kumar, M. Dadmun, J. Zheng, R. M. Dickson, T. Thundat, B. G. Sumpter, and M. D. Barnes, "Oriented nanostructures from single molecules of a semiconducting polymer: Polarization evidence for highly aligned intramolecular geometries," Nano Lett. 3, 603-607 (2003).

P. Kumar, A. Mehta, M. Dadmun, J. Zheng, L. Peyser, R. M. Dickson, T. Thundat, B. G. Sumpter, and M. D. Barnes, "Narrow-bandwidth spontaneous luminescence from oriented conjugated polymer nanostructures," J. Phys. Chem. B 107, 6252-6257 (2003). [Letter to the Editor]

A. Mehta, T. Thundat, V. Chhabra, R. Bhargava, A. P. Bartko, R. M. Dickson, and M. D. Barnes, "Size-correlated spectroscopy and imaging of rare-earth-doped nanocrystals," App. Opt. 42, 2132-2139 (2003).

M. D. Barnes , K. Runge S. M. Mahurin, A. Mehta, B. Hathorn, B. G. Sumpter, and D. W. Noid, "Photonic Molecules: New Challenges in Materials and Optics for Manipulating Photons at Micron Length Scales," Materials Today 5, 15 (2002). [Invited]

A. Bartko, L. Peyser, R. M. Dickson, A. Mehta, R. N. Bhargava, and M. D. Barnes, "Observation of dipolar emission patterns from isolated Eu3+:Y2O3 nanocrystals," Chem. Phys. Lett. 358, 459-465 (2002).

S. Mahurin, A. Mehta, B. Hathorn, K. Runge, B. G. Sumpter, D. W. Noid, and M. D. Barnes, "Photonic polymers: A new class of photonic wire structure from intersecting polymer-blend microspheres," Opt. Lett. 27, 610-612 (2002).

B. Hathorn, B. G. Sumpter, D. W. Noid, and M. D. Barnes, "Molecular Dynamics Simulations of Nanoparticle Collisions: Internal Reorganization and Translation-vibration coupling," Macromol. 35, 1102 (2002).

M. D. Barnes , S. Mahurin, A. Mehta, B. G. Sumpter, and D. W. Noid, "Three-dimensional photonic molecules from sequentially linked polymer-blend microspheres," Phys. Rev. Lett. 88, 015508 (2002).