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3 May 2012 AC-driven light emission from in situ grown organic nanofibers
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In-situ grown organic nanofibers have been prepared on metal electrodes patterned by electron beam lithography. A systematic investigation shows that the light emission from these nanofibers driven by an AC gate voltage depends nonlinearly on the amplitude of the AC gate voltage and linearly on the frequency of the gate voltage, which indicates that a model involving thermally assisted charge-carrier tunneling can be applied. The photoluminescence spectra of parahexaphenylene (p6P) and α-sexithiophene (6T) nanofibers illustrate that the emission color of the in-situ grown nanofibers can be tuned by depositing two types of discontinuous organic layers on the same platform. Electroluminescence from two nanofiber thin films suggests that the relative light emission contribution from the two organic molecules can be varied by changing, e.g., the nominal thickness of the two materials.
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Xuhai Liu, Jakob Kjelstrup-Hansen, Roana Melina de Oliveira Hansen, Morten Madsen, and Horst-Günter Rubahn "AC-driven light emission from in situ grown organic nanofibers", Proc. SPIE 8435, Organic Photonics V, 843524 (3 May 2012);

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