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Michael Tauber
Physical chemistry; Optical and magnetic spectroscopy; Fundamental studies of charge transport and solvation; Applications to energy conversion and energy storage. |
| Contact Information |
| Office: UHA 3050-A |
| Phone: (858) 534-7334 |
| Fax: (858) 534-4864 |
| Email: mtauber@ucsd.edu |
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| View group members
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| Education and Appointments |
| 2002 |
Ph.D., University of California, Berkeley
Chemistry
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| 1992 |
B.A., Cornell University
Chemistry; Physics
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| Awards and Academic Honors |
| 2009-2010 |
Hellman Faculty Fellow |
| 2003-2005 |
Petroleum Research Fellow of the ACS (at Northwestern Univ.) |
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Phi Beta Kappa |
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NSF Predoctoral fellowship |
| Research Interests |
1) Exciton dynamics and charge transport in organic molecular assemblies: At present, molecular-organic photovoltaics are much less efficient than the traditional inorganic solar cells. Our group aims to answer the followinq question: Can the unique properties of conjugated organic molecules/dyes be utilized to harvest a larger percentage of the solar energy, relative to traditional inorganic semiconductors? We will explore answers on a fundamental level, with particular attention to exciton dynamics and charge carrier mobilities. We employ a variety of laser-based spectroscopies (including ultrafast) to answer these questions.
2) Spectroscopy of the electrode/electrolyte interface of supercapacitors: The most remarkable features of electrochemical double-layer capacitors (or supercapacitors) are their high power densities and ability to be charged/discharged in seconds. These are significant advantages over batteries and fuel cells, which rely on much slower Faradaic chemistry. Furthermore, supercapacitors can be recharged 10^5-10^6 times without degradation, and have much less environmental impact in comparison with batteries. Despite these advantages for many applications, supercapacitors currently have a major shortcoming, namely low total energy density. Through the combined use of dielectric spectroscopy, Raman spectroscopy, and electron paramagnetic resonance (EPR) spectroscopy, my group aims for an in-depth understanding of the electrochemical double layer of confined systems that are at the heart of supercapacitors. The insights from these studies will help lead to a 10-fold improvement in energy density that is expected from theoretical considerations.
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Interdisciplinary Specialties: |
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Physical/Analytical Chemistry
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Materials
Physical Organic
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| Image Gallery: |
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Figure 1: ENDOR spectrum of perylene diimide anion chromophores, with electron localized and delocalized |
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| Selected Publications |
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Shafaat HS,
Leigh BS,
Tauber MJ,
Kim JE,
"Resonance Raman characterization of a stable tryptophan radical in an azurin mutant." J Phys Chem B 1(382-8):
, 2009. [Go to PubMed]
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Wilson TM,
Tauber MJ,
Wasielewski MR,
"Toward an n-type molecular wire: electron hopping within linearly linked perylenediimide oligomers." J Am Chem Soc 25(8952-7):
, 2009. [Go to PubMed]
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Stuart CM,
Tauber MJ,
Mathies RA,
"Structure and dynamics of the solvated electron in alcohols from resonance Raman spectroscopy." J Phys Chem A 34(8390-400):
, 2007. [Go to PubMed]
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Kelley RF,
Tauber MJ,
Wasielewski MR,
"Linker-controlled energy and charge transfer within chlorophyll trefoils." Angew Chem Int Ed Engl 47(7979-82):
, 2006. [Go to PubMed]
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Kelley RF,
Tauber MJ,
Wasielewski MR,
"Intramolecular electron transfer through the 20-position of a chlorophyll a derivative: an unexpectedly efficient conduit for charge transport." J Am Chem Soc 14(4779-91):
, 2006. [Go to PubMed]
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Tauber MJ,
Kelley RF,
Giaimo JM,
Rybtchinski B,
Wasielewski MR,
"Electron hopping in pi-stacked covalent and self-assembled perylene diimides observed by ENDOR spectroscopy." J Am Chem Soc 6(1782-3):
, 2006. [Go to PubMed]
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