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Updated: Jan 31, 2026

Planar and Three-Dimensional Printing of Conductive Inks
Published on: December 9, 2011
A Simple, Low Cost Ink System for Drop-on-Demand Printing High Performance Metal Oxide Dielectric Film at Low
Zhennan Zhu1, Jianhua Zhang2, ZhongWei Zhou3
1Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices , South China University of Technology , Guangzhou 510640 , China.
Abstract:
We have successfully developed an ink system containing inexpensive raw materials through a simple process and have printed ZrO x dielectric film at a relatively low annealing temperature of 250 °C. The ZrO x dielectric film afforded a leakage current density of 5.4 × 10-6 A/cm2 at 1 MV/cm and a dielectric constant of 10 and shows a promising future for flexible electronics. The ink system shows a temperature-induced gelation behavior, and a gel network is formed when the temperature rises. A high concentration of oxide precursors is obtained near the network area through the absorption function of polymer groups, and thus oxide structure can be formed at a relatively low temperature due to the shorter diffusion path of precursor polymerization. The microstructure of the printed ZrO x film was investigated by high resolution transmission electron microscopy (HRTEM), Fourier-transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS), and the effect of annealing temperature on film structure was studied.
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