Investigations of two-photon polymerization of inorganic-organic hybrid materials initiated by femtosecond Ti:sapphire laser pulses are performed. First applications of this technique for the fabrication of three-dimensional microstructures and photonic crystals in inorganic-organic hybrid polymers with a structure size down to 200 nm and a periodicity of 450 nm are discussed.

Macroelectronic components combining different classes of devices often suffer from the high complexity and costs of the manufacturing processes. The printing of an active‐matrix sensor network using only five functional inks is demonstrated. The result is an all‐printed monolithically integrated touchless input interface, including ferroelectric sensor pixels, organic transistors for impedance matching, and an electrochromic display.

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A nanoimprinting process that enables fabrication of self‐aligned p‐ and n‐type organic thin film transistors with small channel lengths is presented. Nanoimprint lithography with back‐side exposure permit precise definition of the channel length down to the submicrometer regime and a diminutive gate to source/drain overlap. The self‐aligned manufacturing process enables transistor setups with minimized electrode overlaps resulting in distinct decrease of parasitic capacitances and considerable increase in transition frequency. Fully functional small channel OTFTs with p‐ and n‐type semiconductors are fabricated on glass as well as on flexible substrates with transition frequencies up to 400 kHz.

Sol-gel synthesis allows one to produce inorganic–organic hybrid polymer materials which can be functionalized in order to tailor their physical and chemical properties. Besides, the resulting material properties are significantly influenced by further technological processing of the materials in thin film technology, i.e., the photochemical and thermal curing of the materials. In order to investigate the relationship between technological processing and material properties, a model system containing methacrylic groups as organically polymerizable units is chosen. The degree of conversion of the C=C double bond of the methacrylic group in dependence of the ultraviolet (UV) initiator concentration upon processing is characterized using Fourier-transform infrared spectroscopy. The data are correlated to measurements of the refractive indices at selected wavelengths.