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Mechanically
Detected Magnetic Resonance |
ESR of Nitroxide Spin Probes
Current
protocols for the mechanical detection of magnetic resonance cannot be used
to study spin-labeled biomolecules due to their unfavorable relaxation
rates, however studying such labels represents a direct path to biological
relevance, not offered by studying nuclear spins. Our goal is to develop new
protocols for sample preparation and spin manipulation that will enable
single electron spin imaging experiments on macromolecules of biological
interest. >>>Read More
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Attonewton-Sensitivity
Cantilever Fabrication and Characterization |
Fabrication of Attonewton-Sensitive Magnet-tipped Cantilevers
Mechanical detection of magnetic resonance opens up exciting possibilities for characterizing soft materials at nanometer-scale, and potentially atomic-scale, resolution. Our goal is to fabricate cantilevers with overhanging magnetic tips that are capable of imaging potentially any thin-film sample with atomic resolution. >>>Read More
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Electron Force
Microscopy of Organic Semiconductors |
Charge Trapping
Organics
are an exciting new low cost alternative to certain electronics
applications. We study possible mechanisms in which charges trap, a common
malady hindering performance. >>>Read
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Charge Injection
An
ohmic contact is critical to the efficiency of organic electronics so that
the charge transfer process does not limit efficiency. Disentangling
material properties from device properties remains pertinent to the study of
several materials. >>>Read
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Organic Photovoltaics
Organics
are well suited for large area applications and have good absorptive
properties, which make them a promising candidate for photovoltaics. Even
though much research has gone in to improving performance, the nature of
charge generation remains an open question. >>>Read
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Fluctuations Near
Surfaces |
Dielectric Fluctuations
Surface
induced noise is the primary obstacle for imaging single electron spins
using a magnetic cantilever. Understanding the source of such surface noise
is essential to achieving high sensitivity spin measurements.
>>>Read
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Charge
Fluctuations
Improving
the mobility in organic transistors is essential to their integration into
everyday electronics. Unfortunately, there are few tools available to
microscopically image mobility in organic transistors.
>>>Read
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