Projekt

Pb-free piezoelectric films for energy harvesting

Udbyder

Vejleder

Sted

København og omegn

The piezoelectric effect is the ability of certain materials to generate an electric charge in response to applied mechanical stress and vice-versa. Besides their wide use for sensors, actuators and ultrasonic applications piezoelectric materials could be used for energy harvesting, which has become a hot topic of research and development during the last few years. However 3 main challenges need to be solved before piezoelectric films can be introduced in our everyday lives for local energy harvesting applications.

1) Lead (Pb) being progressively phased out in most industrialized countries, it is necessary to replace the current Pb-based piezoelectric materials by others that don’t contain this toxic element.

2) It is important to produce piezoelectric films with a high degree of microstructural preferential orientation to optimize their efficiency.

3) Many potential applications require flexible films, conditions that cannot be fulfilled by present-day substrates that would otherwise lead to preferential orientation.      

The aim of this project is to perform pioneering work to solve all these problems together with a new and unique manufacturing process taking advantage of flexible metal substrates able to induce preferential orientation of piezoelectric films made of compounds that do not include Pb or other toxic elements such as SrTiO3, HfO2 BiFeO3 or Niobates.

 

During this project you are going to:

-Manufacture piezoelectric films on various substrates using green chemistry deposition techniques.

-Conduct characterization of your samples by means of X-ray diffraction, scanning electron microscopy, as well as various techniques for evaluating physical parameters.

-Evaluate polarization data collected on your samples by our collaboration partners (University of New South Wales - Australia).

-Analyze your results using theoretical models and compare them with published data.

 

Learning objectives:

At the end of this project you will be able to:

-Explain the principles of piezoelectricity and of its potential applications.

-Use various experimental characterization tools (X-ray diffraction, electron microscopy, thermal analysis, magnetization, etc.) and explain their basic principles as well as limitations.

-Critically evaluate your results.

-Draw links between processing parameters, microstructure and performance.

-Perform an efficient literature search and compare your own results to published data.

-Present your results to a scientific audience under conditions equivalent to an international conference.

-Write the draft of a scientific publication. 

I samarbejde med

University of New South Wales

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Kontakt

Virksomhed/organisation

DTU Energi

Navn

Jean-Claude Grivel

Stilling

Seniorforsker

Mail

jean@dtu.dk

Vejleder-info

Bæredygtig Energiteknik

Vejleder

Jean-Claude Grivel

Medvejledere

Astri Bjørnetun Haugen

ECTS-point

5 - 30

Type

Afgangsprojekt, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Fysik og Nanoteknologi

Vejleder

Jean-Claude Grivel

Medvejledere

Astri Bjørnetun Haugen

ECTS-point

5 - 30

Type

Afgangsprojekt, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Materiale- og Procesteknologi

Vejleder

Jean-Claude Grivel

Medvejledere

Astri Bjørnetun Haugen

ECTS-point

5 - 30

Type

Afgangsprojekt, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

Bachelor i General Engineering

Vejleder

Jean-Claude Grivel

Medvejledere

Astri Bjørnetun Haugen

ECTS-point

5 - 30

Type

Afgangsprojekt, Bachelorprojekt, Fagprojekt, Kandidatspeciale, Specialkursus

OM DTU

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet. 10.000 studerende uddanner sig her til fremtiden, og 5.700 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

Find os her

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby


45 25 25 25

dtu@dtu.dk

CVR-nr. 30 06 09 46

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