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Spin-charge conversion and spin caloritronics at hybrid organic-inorganic interfaces

Objective

Organic semiconductors are enabling flexible, large-area optoelectronic devices, such as organic light-emitting diodes, transistors, and solar cells. Due to their exceptionally long spin lifetimes, these carbon-based materials could also have an important impact on spintronics, where carrier spins, rather than charges, play a key role in transmitting, processing and storing information. However, to exploit this potential, a method for direct conversion of spin information into an electric signal is indispensable. Spin-charge conversion in inorganic semiconductors and metals has mainly relied on the spin-orbit interaction, a fundamental relativistic effect which couples the motion of electrons to their spins. The spin-orbit interaction causes a flow of spins, a spin current, to induce an electric field perpendicular to both the spin polarization and the flow direction of the spin current. This is called the inverse spin Hall effect (ISHE). We have very recently been able to observe for the first time the inverse spin-Hall effect in an organic conductor. This breakthrough raises important questions for our understanding of spin-charge conversion in materials with intrinsically weak spin-orbit coupling. It also expands dramatically the range of materials and structures available to address some currently not well understood scientific questions in spintronics and opens opportunities for realising novel spintronic devices for spin-based information processing and spin caloritronic energy harvesting that make use of unique properties of hybrid, organic-inorganic structures. The main objective of the proposed research is to take spintronics to a level that inorganic spintronics cannot reach on its own. The project is based on new theoretical and experimental methodologies arising at the interface between two currently disjoint scientific communities, organic semiconductors and inorganic spintronics, and aims to exploit synergies between chemistry, physics and theory.

Field of science

  • /natural sciences/physical sciences/electromagnetism and electronics/electrical conductivity/semiconductor
  • /natural sciences/physical sciences/electromagnetism and electronics/spintronics
  • /natural sciences/computer and information sciences/data science/data processing

Call for proposal

ERC-2013-SyG
See other projects for this call

Funding Scheme

ERC-SyG - Synergy grant

Lead Principal Investigator

Henning Sirringhaus (Prof.)

Host institution

THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE
Address
Trinity Lane The Old Schools
CB2 1TN Cambridge
United Kingdom
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 4 216 073
Principal investigator
Henning Sirringhaus (Prof.)
Administrative Contact
Liesbeth Krul (Ms.)

Beneficiaries (5)

THE CHANCELLOR MASTERS AND SCHOLARSOF THE UNIVERSITY OF CAMBRIDGE
United Kingdom
EU contribution
€ 4 216 073
Address
Trinity Lane The Old Schools
CB2 1TN Cambridge
Activity type
Higher or Secondary Education Establishments
Principal investigator
Henning Sirringhaus (Prof.)
Administrative Contact
Liesbeth Krul (Ms.)
HITACHI EUROPE LIMITED
United Kingdom
EU contribution
€ 930 566
Address
Lower Cookham Road Whitebrook Park
SL6 8YA Maidenhead
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
David Willliams (Dr.)
FYZIKALNI USTAV AV CR V.V.I
Czechia
EU contribution
€ 1 034 995
Address
Na Slovance 2
18221 Praha 8
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Jan Ridky (Dr.)
JOHANNES GUTENBERG-UNIVERSITAT MAINZ
Germany
EU contribution
€ 1 317 502
Address
Saarstrasse 21
55122 Mainz
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Manuela Hahn (Ms.)
IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE
United Kingdom
EU contribution
€ 2 152 351
Address
South Kensington Campus Exhibition Road
SW7 2AZ London
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Alasya Brooke (Ms.)