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Polarization tracking in situ

Project description

Novel in situ monitoring speeds delivery of innovative electronics

Control over process and emergent characteristics is paramount to the production of components and devices that meet specifications. Trial and error via measurement of the properties of a finished component is always less efficient than real-time monitoring and direct adaptation of the design. This principle is fundamental to the exploitation of promising ferroelectric materials exhibiting a spontaneous polarisation and considered as basis for novel types of smart devices or energy-efficient functional components. The EU-funded POLARIS project is developing approaches to directly measure ferroelectricity in situ during the deposition of oxide thin films. Widespread application could drastically speed the development of innovative integrated circuits for numerous electronics applications.

Objective

"The technology for the growth of thin oxide films has reached the same level of atomic control as in the case of
semiconductors. Yet, in contrast to semiconductors, oxides exhibit novel phases and functionalities like magnetic or electric
order or dramatic changes of electrical resistance. One such functionality is the spontaneous formation of an electric
polarization, called ferroelectricity, that is considered as basis for novel types of smart devices or energy-efficient functional
components in CMOS devices. The infatuating technological potential of ferroelectric oxide heterostructures drives materials
scientists to master their synthesis, understanding and control. Optimizing the ferroelectric performance is tedious, however.
From the post-growth invasive and destructive analysis of prototypes, conclusions are drawn on the optimum heterostructure
design and growth parameters. Monitoring the heterostructures while they are assembled in the growth chamber would
provide immediate and direct feedback on the relation between growth and function and could thus immensely speed up the
iterative process. The present lack of the according technique poses a restricting market factor. Here we will use a laseroptical
process called second harmonic generation (SHG – doubling of the laser frequency) to track the emergence of the
ferroelectric state directly, during the assembly of the oxide heterostructure in the growth chamber. Probing occurs in situ,
non-invasively and non-destructively throughout the deposition process. With our Proof of Concept proposal POLARIS, we
will cast such ""in-situ SHG"" into the prototype for a marketable system that is simply flanged onto the growth chamber. It is a
technique with a high robustness against the sometimes harsh environmental conditions of a lab or, later on, a factory hall.
Its ease of use will be similar to that a laser pointer."

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Programme(s)

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Topic(s)

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Funding Scheme

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ERC-POC-LS - ERC Proof of Concept Lump Sum Pilot

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) ERC-2020-PoC

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Host institution

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 150 000,00
Address
Raemistrasse 101
8092 Zuerich
Switzerland

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Region
Schweiz/Suisse/Svizzera Zürich Zürich
Activity type
Higher or Secondary Education Establishments
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Total cost

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Beneficiaries (1)

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