Smart packaging is a growing market in which innovations are enabled by the emerging field of printed electronics; yet, the surface roughness of conventional paper has proven to be a challenge. Here, we discuss how specialty papers based on advanced nanocellulosic nanomaterials can provide a solution to directly print the thin organic semiconductor layers that form the basis of functional building blocks such as organic transistors, light-emitting diodes and power harvesting devices. In particular, we will report on top-gate organic field-effect transistors (OFETs) fabricated on specialty paper, coated with a buffer layer composed of a polyvinyl alcohol (PVA) and polyvinylpyrrolidine (PVP) blend. OFETs operate at low voltages and display average carrier mobility values of 0.2 cm<sup>2</sup>/Vs, defining the state-of-the-art. We will also present organic solar cells fabricated on cellulose nanocrystal substrates that yield power conversion efficiencies of 4%.

Intelligent paper: Printed electronics on advanced cellulosic nanomaterials

255th National Meeting (2018)

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