Få opslag som dette inden alle andre

DTU Studieprojekt - Textured BiFeO3 piezoelectric thin films on flexible metal substrates for energy harvesting applications

Danmarks Tekniske Universitet (DTU)



Textured BiFeO3 piezoelectric thin films on flexible metal substrates for energy harvesting applications

Udbyder
Vejleder
Sted
København og omegn
Background
BiFeO3 is one of the most promising piezoelectric materials for replacing the presently used lead-based piezoelectric compounds, which must be phased out due to environmental issues linked to the use of lead. Preferential orientation of the BiFeO3 crystallites is a key microstructural parameter for performance optimization. Highly oriented BiFeO3 films can be manufactured on substrates such as Pt/MgO, Pt/Ti/SiO2/Si etc. However, these substrates are not only expensive, but they cannot be bent, while applications of piezoelectric films in e.g. energy harvesters, would benefit from the use of a flexible substrate. Using metal substrates, in which a preferential crystallographic orientation has been engineered could be a very valuable alternative, not only because they are flexible, but also due to their cost that is 2 orders of magnitude lower than that of standard oriented Pt-lined substrates. BiFeO3 can unfortunately not be directly coated on cube textured Ni-based metal foils due to the need for a minimum of 1000 ppm O2 in the reaction atmosphere for stabilizing the BiFeO3 phase. A possible solution would be to protect the metallic substrate by first applying a protective, electrically conductive LaNiO3 thin layer and to deposit the BiFeO3 film on top of it. The goal of this project is to manufacture a Ni-W/ LaNiO3/BiFeO3 stack with high preferential crystallographic orientation of the BiFeO3 film, by using chemical solution deposition techniques. The microstructure and to piezoelectric response will also be characterized using various experimental techniques.

During this project you are going to:
-Manufacture LaNiO3 and BiFeO3 films on cube textured Ni-W metal substrates using a chemical solution deposition technique.

-Conduct characterization of your samples by means of X-ray diffraction, optical and electron microscopy, as well as energy dispersive spectroscopy.

-Measure the piezoelectric response of your films to evaluate their potential for energy harvesting applications.

-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 application for energy harvesting.

-Develop a chemical solution deposition technique for making functional oxide thin films.

-Use various experimental characterization tools (X-ray diffraction, electron microscopy, thermal analysis, spectroscopy) 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.

Contact: Jean-Claude Grivel (jean@dtu.dk) – DTU Energy, building 301 (from 11/2019)

Emneord

  • Energi
  • Bioenergi
  • Brændselsceller
  • Elforsyning
  • Energieffektivisering
  • Energilagring
  • Energiproduktion
  • Energisystemer
  • Kraftværker
  • Solenergi
  • Vindenergi
  • Klimatilpasning
Kontakt
Virksomhed/organisation
DTU Energi

Navn
Jean-Claude Grivel

Stilling
Seniorforsker

Mail
jean@dtu.dk

Vejleder-info
Kandidatuddannelsen i Bæredygtig Energi
Vejleder
Jean-Claude Grivel

ECTS-point
30

Type
Kandidatspeciale

Opslaget er indhentet automatisk fra virksomhedens jobsider og vises derfor kun som uddrag. Log ind for at se det fulde opslag eller gå videre til opslaget her:

læs opslaget hos Danmarks Tekniske Universitet (DTU)



gem
husk frist
print
send til mig
Ansøgningsfrist: snarest muligt
Geografiske områder

Jobsøgerinteresse

Hvor meget interesse vækker opslaget hos de jobsøgende? Log ind og se, hvor populært opslaget er.



Angiv venligst i din ansøgning, at du har set opslaget i Studerende Online

Ansøg
Opslagstype
Ph.d. & forskning
Studieprojekt/speciale
Geografi
Storkøbenhavn
Uddannelse
Humaniora
Kemi, Biotek & Materialer
Klima, Miljø & Energi
Matematik, Fysik & Nano
Teknik & Teknologi
Arbejdsområde
Forskning & Udvikling
Naturvidenskab
Teknik
Få opslag som dette inden alle andre

Danmarks Tekniske Universitet (DTU) - hurtigt overblik


Danmarks Tekniske Universitet (DTU)
Danmarks Tekniske Universitet (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. 11.200 studerende uddanner sig her til fremtiden, og 6.000 medarbejdere har hver dag fokus på uddannelse, forskning, myndighedsrådgivning og innovation, som bidrager til øget vækst og velfærd.

Placering
Anker Engelunds Vej 1
2800 Kgs. Lyngby
Logo: Danmarks Tekniske Universitet (DTU)
Efterspørgsel efter nye talenter

Hvilke jobtyper og arbejdsområder udbyder vi normalt og hvor mange nye talenter søger vi efter?


LinkedIn

Følg vores aktiviteter på LinkedIn.


Webside

Få mere info omkring vores virksomhed på vores egne websider:

www.dtu.dk


Danmarks Tekniske Universitet (DTU) i Google

Er der andre informationer om os, som du burde vide? Se, hvad en Google-søgning siger.




https://studerendeonline.dk/job/1389287//
Karriereprofil i Jobbanken
Opret karriereprofil: Automatiser din jobsøgning med jobagenter, få adgang til nyeste job før andre og bliv synlig for arbejdsgivere med en talentprofil.
nej tak, tag mig til jobopslaget
nej tak, vis ansøgningsinfo
HPT