Publications de Nenad Cvetkovic

Streched organic transistors maintain mobility on flexible substrates

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

Two levels of aligned stencil lithography were used to fabricate pentacene thin film transistors on 12 mu m thick flexible polyimide substrates. Flexible transistors with 20 x 40 mu m(2) channels were electrically measured under strain up to 2.6%. After on ...

Elsevier2012

Organic half-wave rectifier fabricated by stencil lithography on flexible substrate

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

Elsevier2012

Organic Thin-Film Transistors and Circuits Fabricated by Stencil Lithography on Full-Wafer Flexible Substrates

Nenad Cvetkovic

Electronic devices based on organic semiconductors, such as field-effect transistors (OTFTs) and organic diodes have attracted significant interest as possible inexpensive and flexible alternatives to inorganic devices. Despite considerable improvement in ...

EPFL2011

Organic Thin Film Transistors on Flexible Polyimide Substrates Fabricated by Full Wafer Stencil Lithography

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

This paper presents new results on miniaturized organic thin film transistors (TFT) fabricated on a spin coated polyimide (PI) film. Patterning steps, that are vital for the integrity and electrical performances of the organic TFT, were performed using res ...

Elsevier2010

Three-level Stencil Alignment Fabrication of a High-k Gate Stack Organic Thin Film Transistor

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

2010

Organic Thin Film Transistors on Flexible Polyimide Substrates Fabricated by Full Wafer Stencil Lithography

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Andreea Veronica Savu, Nenad Cvetkovic

This paper presents new results on miniaturized organic thin film transistors (TFT) fabricated on a spin coated polyimide (PI) film. Patterning steps, that are vital for the integrity and electrical performances of the organic TFT, were performed using res ...

Elsevier Science, Reg Sales Off, Customer Support Dept, 655 Ave Of The Americas, New York, Ny 10010 Usa2009

Double-Gate Pentacene TFTs with Improved Control in Subthreshold Region

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Jyotshna Bhandari, Andreea Veronica Savu, Nenad Cvetkovic

In this work a double-gate pentacene TFT architecture is presented. The devices are fabricated on a polyimide substrate using three aligned levels of stencil lithography along with standard photolithography, which enable a soft yet well controlled device p ...

IEEE2009

Pentacene - SiO2 interface: Role of the environment prior to pentacene deposition and its impact on TFT DC characteristics

Mihai Adrian Ionescu, Jürgen Brugger, Dimitrios Tsamados, Katrin Sidler Arnet, Nenad Cvetkovic

In this paper we report on the effect of the environment on the SiO₂/pentacene interface. Two batches of bottom-contact pentacene thin-film transistors have been fabricated with a 100 nm thick SiO₂ as dielectric. Considerable shifts of the threshold voltag ...

IEEE2008