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Professor
PIERO COSSEDDU (Tit.)
Period
First Semester 
Teaching style
Convenzionale 
Lingua Insegnamento
INGLESE 



Informazioni aggiuntive

Course Curriculum CFU Length(h)
[70/83]  ELECTRONIC ENGINEERING [83/25 - Ord. 2018]  ELECTRONIC TECHNOLOGIES FOR EMERGING APPLICATIONS 7 70

Objectives

Development of basic knowledge of innovative technologies in the field of microelectronics, and in particlar of organic electronics
Development of the ability of fabrication and electrical charactierization of organic semiconductor based electronic devices
Development of the ability of clearly exaplain the different concepts learned during the course

Prerequisites

Physics, Physics of Solid State and Electronic Devices are mandatory in order to succesfully attend the course

Contents

Introduction on Organic Electronics: organic chemistry, Carbon atom, molecular orbitals
Physics of Organic Semiconductors: Charge transport in organic aterials; inorganic semiconductors vs organic semiconductors
Charge Transport in Organic Semiconductors: Models for charge transport; Correlation between morphology and electrical properties in organic materials; small moleculs and polymers
Organic Field effect Transistor (OFET): working principle and main differences with MOSFETs; Structures and materials
Non idealities in OFETs: the role of interfaces
- metal/semiconductor
- insulator/semiconductor
Contact Resistance, Hysteresis and bias Stress in OFETs
Alternative configurations:
- Organic Electrochemical Transistors, OECT
- Electrolite Gated Organic Field Effect Transistors, EGOFET
- Self aligned OFET
Effect of mechanical deformation in policrystalline films based devices
Solutions for aobtaining mechanically stable devices
Applications :
Wearable Applications e Artificial Skin:
- Strain sensors
- temperature sensors
- Force/Pressure sensors
Textiles Electronics
Electrical charaterization: Instrumentation for electrical characterization; Measuring methods and electrical parameters extraction;
Oranic Solar Cells (OSCs): Working Principle; Aarchitectures and Materials
Organic Light Emitting Diodes (OLEDs): Working Principle; Architectures and Materials
Light Emitting Transistors (OLETs): Working Principle; Architectures and Materials
Organic Semiconductor-based Memory Elements: OFET-based Memories; Resistive Memories etc.
Laboratories:
1) Fabrication Technologies: Deposition from vapor phase; Deposition from liquid phase
2) Patterning Techniques: Inkjet Printing, Soft lithography, Photolithograpy
3) Electrical characterization of transistors made on flexible substrates (plastic, paper, fabric etc.)
4) Fabrication and characterization of flexible sensors for wearable application

Teaching Methods

The course will be organized as follows:
30 hours of lectures on the previously reported arguments
40 hours of lab experiences, organized as follows:

- 10 hours of Fabrication Technologies for organic semiconductor-based electronic devices
- 10 hours Fabrication of OFETs by means of inkjet printing
- 10 hours of Electrical Characterization of Organic Electronic Devices and results analysis
- 10 hours of electrical characterization of organic semiconductor-based flexible sensors

Verification of learning

At the end of the course, the students will be asked to make a small thesis. The thesis arguments will be decided during the lectures.
The final exam will consist in an oral interview and a presentation of their thesis.
The final marks will depend on:
- Oral Interview marks
- Active involvement in the laboratory experiencies
- Thesis Quality
- Ability of the student to report about the achieved results during the final presentation

Texts

Molecular Electronics From Principles to Practice
Michael C. Petty
John Wiley and Sons LTD
ISBN: 978-0-470-01307-6

Organic Field Effect Transistors
Theory, Fabrication and Characterization
Ioannis Kymissis
Springer
ISBN 978-1-4419-4711-6

Slides of the lectures

More Information

During the semester the student will be provided with some of the most recent works publishe in international journals on the research activities related with the course topics
Moreover, the students will be provided with all the slides shown during the lectures

Questionnaire and social

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