Abstract
In this work, organic semiconductor devices (OSD) incorporating both poly(N-vinylcarbazole) (PVK) and graphene oxide (GO) were fabricated. The stable solutions of PVK/GO were prepared in chloroform by a simple sonication method, which enabled the successful dispersion of GO with the polymer matrix. These nanomaterials have been used in the fabrication of OSD with configuration ITO/PVK:GO/Ag. The electrical and optical properties were investigated using several techniques. The electrical measurements show that the electrical behavior of PVK polymer enhanced with increasing GO nanofillers concentration. The observed electrical improvement in the nanocomposites can be attributed to the charge transfer interaction between carbazole electron donor and the functional groups onto the surface of GO. UV–Vis absorption and photoluminescence studies elucidated the energy transfer and the interaction between polymer chains and the graphene nanosheets which exhibit a strong blue-green luminescence.
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Goumri, M., Hatel, R., Ratier, B. et al. Optical and electrical properties of poly (N-vinylcarbazole)/graphene oxide nanocomposites for organic semiconductor devices. Appl. Phys. A 126, 647 (2020). https://doi.org/10.1007/s00339-020-03812-y
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DOI: https://doi.org/10.1007/s00339-020-03812-y