Pujar, P.Madaravalli Jagadeeshkumar, K.K.Naqi, M.Gandla, S.Cho, H.W.Jung, S.H.Cho, H.K.Kalathi, J.T.Kim, S.2026-02-052020ACS Applied Materials and Interfaces, 2020, 12, 40, pp. 44926-4493319448244https://doi.org/10.1021/acsami.0c11193https://idr.nitk.ac.in/handle/123456789/23671The process complexity, limited stability, and distinct synthesis and dispersion steps restrict the usage of multicomponent metal oxide nanodispersions in solution-processed electronics. Herein, sonochemistry is employed for the in situ synthesis and formulation of a colloidal nanodispersion of high-permittivity (?) multicomponent lanthanum zirconium oxide (LZO: La2Zr2O7). The continuous propagation of intense ultrasound waves in the aqueous medium allows the generation of oxidant species which, on reaction, form nanofragments of crystalline LZO at ?80 °C. Simultaneously, the presence of acidic byproducts in the vicinity promotes the formulation of a stable as-prepared LZO dispersion. The LZO thin film exhibits a ? of 16, and thin-film transistors (TFTs) based on LZO/indium gallium zinc oxide operate at low input voltages (?4 V), with the maximum mobility (?) and on/off ratio (Ion/Ioff) of 5.45 ± 0.06 cm2 V-1 s-1 and ?105, respectively. TFTs based on the compound dielectric LZO/Al2O3 present a marginal reduction in leakage current, along with enhancement in ? (6.16 ± 0.04 cm2 V-1 s-1) and Ion/Ioff (?105). Additionally, a 3 × 3 array of the proposed TFTs exhibits appreciable performance, with a ? of 3-6 cm2 V-1 s-1, a threshold voltage of -0.5 to 0.8 V, a subthreshold swing of 0.3-0.6 V dec-1, and an Ion/Ioff of 1-2.5 (×106). © © 2020 American Chemical Society.Dispersion (waves)Gallium compoundsII-VI semiconductorsIonsLanthanum compoundsMetalsSolsTemperatureThin film circuitsThin filmsThreshold voltageUltrasonicsZinc oxideZirconium compoundsGallium zinc oxidesHigh intensity ultrasoundsLanthanum zirconium oxideMulticomponent metal oxideProcess complexitySolution-processedSubthreshold swingThin-film transistor (TFTs)Thin film transistors