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    Probing the Relationship Between Molecular Packing and Optoelectronic Properties in Molecular Electronic Materials

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    Date
    2015-04-03
    Author
    Nelson, Jenny
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    Abstract
    The properties (electronic, optical, mechanical and thermal) of organic semiconductors are strongly dependent on the chemical structure, configuration, conformation and relative position of the component molecules or molecular segments. Predicting the impact of structure on properties requires a detailed understanding of molecular interactions and dynamics at an atomistic level, as well as computationally efficient means of translating structural information into optoelectronic properties at a macroscopic, device relevant level. Although predictive models are not yet available except for simple systems, significant progress has been made toward this goal, making use of multi-scale modeling techniques, coarse graining approaches, and structural measurements of model material systems. In this talk we will review methods used to simulate the structure – property relationship in organic semiconductors, and will present combined experimental and theoretical studies of a number of applications relevant systems including disordered and multicrystalline molecular and conjugated polymer films. We investigate the use of coarse grained methods to rationalize the electronic properties of such systems. We discuss how these methods may contribute to the design of high performance organic semiconductors.
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    http://hdl.handle.net/1853/53293
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