Printed sensor for unobstrusive vital sign monitoring

Automated driving: interaction inside the car

Printed sensors for vital sign monitoring

Developments in printed stretchable electronics are key for realizing wearables with superior comfort and signal quality. Currently printed wearables primarily focus on ECG measurements. In this presentation a number of new printed sensor functionalities will be shown enabling a next generation of wearables suitable for remote monitoring of...

Fully-printed stretchable pressure sensor arrays

In this paper we present elastomeric large-area arrays of pressure sensors based on printed electronics. Two applications are presented to demonstrate the versatility and scalability of the presented technology. The first consists of a shoe inlay with over 700 sensors (5 mm pitch) and the second consists of large-area sensor mat (30 cm × 40 cm)...

15.3 An a-IGZO asynchronous delta-sigma modulator on foil achieving up to 43dB SNR and 40dB SNDR in 300Hz bandwidth

Integration of flexible AMOLED displays using oxide semiconductor TFT backplanes

AMOLED displays using oxide TFTs and high-quality moisture barrier were fabricated on ultrathin, flexible plastic substrates to give maximum mechanical flexibility. Total display thickness is below 150μm, and repeated rollability at 1 cm roll radius has been demonstrated. Electrical/Mechanical characteristics and reliability of the flexible...

Solving the technology barriers in flexible AMOLED displays

In this paper, we present some of the technology challenges and process temperature trade-offs when realizing AM OLED displays on thin flexible plastic films that can be mechanically bent to a roll radius of ∼1 cm. We furthermore present complementary approaches to realize low-power, high resolution OLED displays using self-aligned IGZO TFT...

High resolution patterning for flexible electronics via roll-to-roll nanoimprint lithography

A 6b 10MS/s current-steering DAC manufactured with amorphous Gallium-Indium-Zinc-Oxide TFTs achieving SFDR > 30dB up to 300kHz

Amorphous Gallium-Indium-Zinc-Oxide (GIZO or IGZO) has been recently proposed [1] as an interesting semiconductor for manufacturing TFTs because of its mobility (μ∼20cm 2/Vs), superior to other common materials for large-area electronics like organic semiconductors and a-Si (μ∼1cm 2/Vs). The amorphous nature of GIZO grants also a good uniformity...

Foil-based optical technology platform for optochemical sensors

This paper describes the development of a low-cost technology platform for fluorescence-based optochemical sensors. These sensors were constructed by incorporating fluorescent sensing elements in the core of multimode waveguides or lightguides, and have applications in medical, biochemical and environmental diagnostics. Flexible lightguides were...

Transport physics and device modeling of zinc oxide thin-film transistors. Pt. II: Contact Resistance in Short Channel Devices

Abstract—Short-channel zinc oxide (ZnO) thin-film transistors (TFTs) are investigated in a wide range of temperatures and bias conditions. Scaling down the channel length, the TFT performance is seriously affected by contact resistances, which depend on gate voltage and temperature. To account for the contact resistances, the transistor is...

Transport physics and device modeling of zinc oxide thin-film transistors. Pt. I: Long-channel devices

Thin-film transistors (TFTs), which use zinc oxide (ZnO) as an active layer, were fabricated and investigated in detail. The transport properties of ZnO deposited by spray pyrolysis (SP) on a TFT structure are studied in a wide range of temperatures, electrical conditions (i.e., subthreshold, above-threshold linear, and saturation regions), and...

Organic thin-filmelectronics fromvitreous solution-processed rubrene hypereutectics

Electronic devices based on single crystals of organic semiconductors provide powerful means for studying intrinsic charge-transport phenomena and their fundamental electronic limits1–4. However, for technological exploitation, it is imperative not to be confined to the tedious growth and cumbersome manipulation of molecular crystals—which...

Air-Stable Complementary-like Circuits Based on Organic ; Ambipolar Transistors

To date there are two demonstrated technologies for the fabrication of organic integrated circuits: the unipolar and the complementary technology. Unipolar architectures consist of p-channel organic field-effect transistors (OFETs), which are simple to fabricate since they require a single, high-workfunction metal (e.g., gold) and a single...

Mesogenic sugars: From aldoses to liquid crystals and surfactants

Amphiphilic sugar derivatives, formed by condensation of functionalized aliphatic chains with aldoses, form liquid crystals, in most cases smectic. A puzzling observation was the failure of the S,S-acetals of 6-deoxy sugars, L-rhamnose and D-fucose, to form such phases. A satisfactory model to explain this behavior involves - in most cases - the...

The sweet world of liquid crystals: the synthesis of Non-amphiphilic carbohydrate-derived liquid crystals