Skip to main content
CODE 61935
ACADEMIC YEAR 2017/2018
CREDITS
SCIENTIFIC DISCIPLINARY SECTOR CHIM/04
LANGUAGE Italian (English on demand)
TEACHING LOCATION
SEMESTER 1° Semester

OVERVIEW

The class "Polymers for Electronics" provides an overview of molecular electronics. Different items ar ediscusse dsuch as synthesis of conjugated polymers/molecules, electronic states, optical and electronic properties, material characterization and electronic devices (OLED, OFET, OPV, sensors....). Recent development on the consummer electronics realted evices are also discussed.

AIMS AND CONTENT

LEARNING OUTCOMES

Basic knowledge of chemical and physical properties of molecular and polymer semiconductors. Working mechanisms for optoelectronic devices (sensors, OLED, OFET, OPV) 

 

AIMS AND LEARNING OUTCOMES

Electronic properties of conjugated materials and their relations with chemical and sipramolecular properties. Main characterization techniques of conjugates materials. Spectroscopy and photophysics. Working principles for sensors, OFET, OLED, OPV and relation with material properties.

TEACHING METHODS

Combination of traditional lectures (50 hours) and preparation of simple experience/exercise

SYLLABUS/CONTENT

Lessons will deal with the following items:

Extended p-electron systems both in molecules and polymers. Conjugation length: ionization potential, electron affinity and HOMO-LUMO gap in the series ranging from ethylene to polyene. [Electronic states for the polyene: the Huckel method for the isolated chain and for interacting macromolecules]. Dimerization and Peierls distorsion: metal and semiconducting polymers. Conducting conjugated polymers: doping and applications. Charge transport in semiconducting and conducting polymers. Spectroscopy of conjugated systems: [electronic transitions], Franck-Condon principle and [vibronic transitions], fluorescence and lifetime, singlet and triplet excitons, Jablonski diagram and photophysics.

Synthesis of main conjugated polymer families (polyacetylene, polythiophene, poly(p-phenylenevinylene)). Functionalization of chemical and physical properties of conjugated materials (solubility, ionization potential, electron affinity). Supramolecolar structure of conjugated polymers and role of aggregation in the solid state. Orientation techniques of conjugated polymers, optical and electronic properties anisotropy.

Working principles of devices made of conjugated molecules and polymers: sensors, devices for non-linear optics, OLED, PLED, OTFE, photovoltaic cells and light harvesting based devices. Role of the supramolecular structure on the main electronic properties and on devices.

 

Practice: [Calculation of the electronic structure of 1D and 3D polyacetylene.] Preparation of conjugated polymer thin films by spin coating and drop casting. Transmission, reflection and fluorescence spectroscopy of conjugated polymers in solution (both liquid and solid) and at the solid state. LAB ACTIVITIES MIGHT DEPEND ON THE NUMBER OF STUDENTS.

[Items for Material Science students only]

RECOMMENDED READING/BIBLIOGRAPHY

Reference Books

  • Lessons notes (D. Comoretto)
  • International Reviews
  • M. Pope and C. Swemberg “Electronic processes in organic crystals and polymers”, Oxford Sci Publ. New York 1999.
  • M. Klessinger and J. Michl “Excited states and photochemistry of organic molecules”, VCH, New York 1995.

J.B. Birks “Photophysics of Aromatic Molecules”, Wiley monographs in chemical physics, 1970

TEACHERS AND EXAM BOARD

Exam Board

DAVIDE COMORETTO (President)

MARINA ALLOISIO

FRANCESCO BUATIER DE MONGEOT

MAURIZIO CANEPA

LESSONS

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

Oral

ASSESSMENT METHODS

Discussion of power-point presentation or written relation on an item related to the class selected by the student.

Exam schedule

Data appello Orario Luogo Degree type Note
02/02/2018 10:00 GENOVA Orale
16/02/2018 10:00 GENOVA Orale
20/06/2018 10:00 GENOVA Orale
20/06/2018 10:00 GENOVA Orale
06/07/2018 10:00 GENOVA Orale
20/07/2018 10:00 GENOVA Orale
20/07/2018 10:00 GENOVA Orale
28/09/2018 10:00 GENOVA Orale