People - Faculty - Professor: Thuc-Quyen Nguyen

Field(s): Physical Chemistry and Material Chemistry
Email: quyen@chem.ucsb.edu
Phone: (805) 893-4851 Fax: (805) 893-4120
Office: 3122 Chem 
Selected Publications
Go to Research Group website
Bio: T.-Q. Nguyen obtained her B.S., M.S., and Ph.D. from UCLA in 1997, 1999, and 2001 respectively. She received several awards including the Dissertation Awards from the Chemistry Department at UCLA and the University of California for outstanding performance in research in Physical Chemistry and the Outstanding Innovative Research Award of the Advanced Materials. She was a research associate in the Department of Chemistry and the Nanocenter at Columbia University working with Louis Brus and Colin Nuckolls. She also spent time at IBM Research center at T. J. Watson (Yorktown Heights, NY) working with Richard Martel and Phaedon Avouris. She joined the faculty at UCSB in 2004.


Research Interests

My research focuses on understanding the photophysics and electronic properties of novel organic and metal-organic hybrid materials for applications in nanotechnology such as molecular electronics, transistors, photovoltaics, and sensors. Particularly, we are interested in factors that influence the photophysics and charge transport in these materials both at the nanoscale and in the bulk using various scanning probe techniques and femto-second laser spectroscopy. We seek to correlate the structure-function-property relationship and also work closely with synthetic chemistry and theory groups to design new materials. Understanding these physical properties allows design of materials with specific functions and properties for particular applications. In addition to the above techniques, students will design, fabricate, and perform electrical characterization of the devices using optical and electron beam lithography and other semiconductor characterization techniques both in our laboratory and in the clean-room facility at UCSB. Overall, our research goal is to prepare students with a strong knowledge/background in chemistry, material science, and device physics.

Current Research

1. Charge transport in one-dimensional organic nanostructures and self-assemblies
2. Effects of structure, molecular interactions, morphology, and environment on charge transport in organic single crystals and thin films
3. Charge transport in metal-organic hybrid systems
4. Charge injection at metal-organic interface and chemistry of the interface
5. Photophysics and applications of carbon nanotube-based composite materials
6. Organic photovoltaics


Selected Research Publications
"Control of Solution Aggregation, Solid State Fluorescence Quantum Yield, and Charge Transport in Cationic Conjugated Polyelectrolytes by Choice of Anion," R. Yang, A. Garcia, D. Korystov, A. Mikhailovsky, G. C. Bazan, and T.-Q. Nguyen, J. Am. Chem. Soc. 2006, 128, 16532-16539.
"Molecular Interactions in One-Dimensional Organic Nanostructures," T.-Q. Nguyen, R. Martel, P. Avouris, M. Bushey, C. Nuckolls, and L. E. Brus, J. Am. Chem. Soc. 2004, 126, 5234-5242.
"Tuning Intermolecular Attraction to Create Polar Order and One-Dimensional Nanostructures," T.-Q. Nguyen, M. Bushey, L. E. Brus, and C. Nuckolls, J. Am. Chem. Soc. 2002, 124, 15051-15054.
"Near-Field Scanning Optical Microscopy (NSOM) Studies of the Relationship Between Interchain Interactions, Morphology and Energy Transport in Conjugated Polymer Films," T.-Q. Nguyen, R. D. Schaller, J. C. Johnson, L. F. Lee, R. J. Saykally, and B. J. Schwartz, J. Phys. Chem. 2001, 105, 5153-5156.
"Improving the Performance of Conjugated Polymer-Based Devices by Control of Interchain Interactions and Polymer Film Morphology," T.-Q. Nguyen, R. C. Kwong, M. E. Thompson, and B. J. Schwartz, Appl. Phys. Lett. 2000, 76, 2454-2456.
"Control of Energy Transfer in Oriented Conjugated Polymer/Mesoporous Silica Composites," T.-Q. Nguyen, J. Wu, V. Doan, S. H. Tolbert, and B. J. Schwartz, Science 2000, 288, 652-656.
"Controlling Interchain Interactions in Conjugated Polymers: The Effects of Chain Morphology on Exciton-Exciton Annihilation and Aggregation in MEH-PPV Films," T.-Q. Nguyen, I. Martini, J. Liu, B. J. Schwartz, J. Phys. Chem. B 2000, 104, 237-155.


Department of Chemistry and Biochemistry 9510
University of California
Santa Barbara CA 93106 - 9510
Department Phone: 805-893-5675
Department Fax: 805-893-4120