Why Organics?

Organic electronics has emerged as a low cost alternative to conventional electronics.

Organic electronics can be developed on flexible substrates, realizing active devices (Organic Thin-Film Transistors, OTFTs), optoelectronic devices (Organic Light-Emitting Diodes, OLEDs), Photovoltaic Devices (such as polymeric solar cells or dye-sensitized solar cells), and Bio-oriented devices (such as sensors and cell sensing/stimulating devices).

There are many applications where the performances of organic electronics are already sufficient, including large-area sensors, displays, and circuit applications (for OTFTs), portable devices, car dashboards and televisions (for OLEDs), and calculators, thermometers, clocks and price tags (for OSCs). However, the knowhow is still limited in some fields, such as electrical model and working principles. In addition, the performance and the lifetime of organic electronic devices, in some cases, are still below the specifications imposed by the market, even though they are quickly increasing.

You find here a brief overview of our research areas on organic electronics. The research activity include electronic, optoelectronic, photovoltaic, and biological-oriented devices.

Organic TFTs

Stability and Reliability are the key-issues for Organic TFT. Among our focus there are the analysis of charge-trapping phenomena, the study of the role of self-heating in determining devices degradation, the 2D simulation of devices characteristics.

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Organic LEDs and optoelectronic devices

Our primary focus are: electro-optical characterization of the performance of the devices, thermal behavior, capacitive and impedance investigation, the effect of temperature on the characteristics of the devices, dc-stress tests and reliability analysis.

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Organic Solar Cells

Our primary goals are the characterization of the efficiency of cells by means of standard and advance techniques (such as the Impedance Spectroscopy, the Open Circuit Voltage Decay, the Applied Bias Voltage Decay, Deep-level transient spectroscopy), the analysis of the dependence of the main devices parameters (e.g., efficiency, fill factor, short-circuit current and open circuit voltage) on temperature and illumination conditions, the study of the reliability of the devices and of its dependence on stress temperature and illumination level.

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Organic Devices for Biological Applications

We are working on the characterisation and modeling of multifunctional devices for neuron sensing and stimulation.

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MOST - Molecular and Organic Semiconductor Technology
Microelectronic Group - University of Padova