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Dumitru L.M.,Johannes Kepler University | Irimia-Vladu M.,Institute for Surface Technologies and Photonics | Sariciftci N.S.,Johannes Kepler University
Comprehensive Analytical Chemistry | Year: 2016

Biosensors are electronic devices, where a bio-receptor (an enzyme, an antibody or a nucleic acid) is interfaced with physiochemical transducers, which are used to detect various types of analytes. These smart devices, capable of rapid screening of biological samples, have a high impact not only in point-of-care applications but also in various analytical sectors such as, environmental pollution control, food safety, drug development, healthcare monitoring, screening for disease, industrial processing and monitoring, security and defence.Nowadays, food freshness is also a key factor for public safety. Developing new, fast, accurate, reproducible and economical sensors for the detection of biologically relevant analytes is still a challenge. Many biosensors for detecting pathogens, pesticides and microtoxins were already proposed as immunoanalytical tools that could, in some cases, replace the traditional methods of identifying food contaminants. These tools can reduce the analysis time thus having a huge impact on the final cost of the product. Ideally, these sensors should be fully disposable and have a minimum environmental impact. However, finding biocompatible or biodegradable materials for interfacing electronics with enzymes, antibodies or proteins is still a big challenge. © 2016 Elsevier B.V.

Langer G.,Austria Technology and Systemtechnik AG | Leitgeb M.,Austria Technology and Systemtechnik AG | Nicolics J.,Vienna University of Technology | Unger M.,Vienna University of Technology | And 2 more authors.
SMT Surface Mount Technology Magazine | Year: 2014

With increasing power loss of electrical components, the thermal performance of an assembled device becomes one of the most important quality factors in electronic packaging. Due to the rapid advances in semiconductor technology, particularly in the realm of high-power components, the temperature dependence of long-term reliability is a critical parameter and has to be considered with the highest possible care during the design phase.

Rothlander T.,Institute for Surface Technologies and Photonics | Palfinger U.,Institute for Surface Technologies and Photonics | Stadlober B.,Institute for Surface Technologies and Photonics | Haase A.,Institute for Surface Technologies and Photonics | And 7 more authors.
Journal of Materials Research | Year: 2011

We demonstrate the fabrication of shadow mask (SM) patterned as well as nanoimprint lithography (NIL) patterned organic transistors and integrated complementary organic inverters (ICOIs). As active layers pentacene (p-type) and either PTCDI-C13H27 or F16CuPc (n-type) were used. The SM-patterned ICOIs with a staggered bottom gate configuration, a nanocomposite dielectric and both active layer combinations (pentacene/PTCDI C13H27, pentacene/F16CuPc) exhibited high performance (3 V operation voltage; gain around 60; high level 3 V; low level 5 mV; noise margin 0.9 V). Flexible ICOIs with transistor channel lengths of 900 nm were successfully fabricated by NIL, using a benzocyclobutene derivative as dielectric. Because of the process inherent coplanar bottom gate configuration, F16CuPc was used. The ICOIs showed proper functionality (3 V operation voltage; gain around 5; high level 2.9 V; low level 25 mV). To our knowledge, this study demonstrates the first complementary submicron inverters based on fully R2R compatible imprint processes. Copyright © 2011 Materials Research Society.

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