Optically Detected Magnetic Resonance Studies on π-conjugated semiconductor systems

Date
2011-01-01
Authors
Chen, Ying
Major Professor
Advisor
Joseph Shinar
Committee Member
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Altmetrics
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Research Projects
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Physics and Astronomy
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Physics and Astronomy
Abstract

Optically Detected Magnetic Resonance (ODMR) studies were carried out on various π-conjugated semiconductor systems. In organic light emitting diodes, enhanced formation of bi-polarons under resonance conditions was observed. An enhancing spin-1/2 resonance was also observed and can only be explained with enhanced Triplet-polaron quenching under resonance conditions. A novel resonance is observed in MEH-PPV devices. Possible mechanisms are discussed.

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