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EURAXESS

MSCA-COFUND-CLEAR-Doc-PhD Position #CD22-32: Characterization of thermal and energy exchanges at interfaces of diamond-based materials

14/10/2022

Job Information

Organisation/Company
Université Gustave Eiffel
Department
ESYCOM
Research Field
Engineering
Engineering » Thermal engineering
Physics
Physics » Condensed matter properties
Physics » Applied physics
Researcher Profile
First Stage Researcher (R1)
Country
France
Application Deadline
Type of Contract
Temporary
Job Status
Full-time
Hours Per Week
35
Is the job funded through the EU Research Framework Programme?
H2020 / Marie Skłodowska-Curie Actions COFUND
Marie Curie Grant Agreement Number
101034248
Is the Job related to staff position within a Research Infrastructure?
No

Offer Description

I. Context:

Climate change is undoubtedly one of the major challenges in the history of humanity and the challenge of the XXIst century and is the consequence of a massive use of carbon-based fossil fuels for the past two centuries. The energy sector is therefore at the heart of this problem and a big part of the solution. On one hand, roughly 90% of the global energy use involves the generation of manipulation of heat. On the other hand, energy efficiency in general, and energy recovery in particular as one way to increase energy efficiency, as well as the use of low carbon energy, are two key routes to decarbonization. Consequently, thermal energy recovery and low carbon heat are indispensable to reach decarbonization goals. For this purpose, several technologies exist for thermal energy harvesting such as thermoelectrics, solar thermal or thermo-photovoltaics. Many of these technologies still suffer poor efficiencies and their improvement requires the design and fabrication of new materials with optimized thermal and energy transport properties for each application to go beyond what can be achieved using conventional natural materials. Such new materials are called meta-materials and can be obtained by materials engineering at the micro and nano scales to take advantage of the huge advances of micro and nano-fabrication techniques over the past few decades. The management of energy and heat at the nanometric scale is therefore of paramount importance to master the design, fabrication, and use of such materials for decarbonization goals. Appropriate experimental techniques are also essential to measure, characterize and understand their thermophysical properties as well as their couplings.

 

II. Objective:

In this project, we are interested in the thermal characterization of diamond-based materials such as thin diamond films or nanocomposites based on diamond inclusions. Diamond is chosen because it has excellent physical properties such as hardness, optical transparency, thermal expansion, thermal conductivity, electrical insulation, chemical corrosivity and biocompatibility.1–3 A recent study4 demonstrates experimentally that thermal transport through diamond membranes or diamond-silicon interfaces is tunable. The authors observe that the diamond-silicon thermal boundary resistance (TBR) is the lowest measured to date (compared to other studies3) and that the thermal conductivity of diamond increases due to strong texturing of the diamond seeds near the interface. On the other hand, another study5 shows that the surface functionalization of diamond nano-inclusions is very versatile and that the possibility of modifying them as nano-biomaterials seems promising for various applications in the fields of coating materials, metal plating and polymer nanocomposites. Thus, various electron transport mechanisms and percolation phenomena are observed in diamond-like nanocomposites (DLN), and DLN properties and structure are preserved in both metallic and dielectric states.6 In addition, newer types of highly conductive nano-inclusions, which are a mixture of three-dimensional (3D) diamond foam (DF) and chromium-modified copper foam, increase the thermal conductivity of phase change materials (PCM)7 offered for thermal grinding applications.8 Hence, three scientific and technological objectives must be addressed to address this issue:

1) Fabrication of new types of metamaterials based on diamond (thin diamond films or nanocomposites based on diamond inclusions) which will mainly be carried out in the clean rooms of the University Gustave Eiffel/ESIEE Paris.

2) Design and implementation of new experimental techniques for the characterization of the fabricated meta-materials. For thermal applications (rectification, cooling, or other),9,10 it will be interesting to study the temperature dependence of the different thermophysical properties of the considered materials. The study of their thermal and optical properties will be based on the implementation of a measurement of thermal conductivity/conductance via time domain thermoreflectance (TDTR) alongside the 3-omega method; and a design of an experimental bench for the measurement of emissivity by spectroscopy and microscopy, FTIR.

3) The experimental results will then be combined with numerical simulations (e.g., by finite elements) to extract the expected properties and to understand and explore their theoretical significance in heat conduction/radiation. The objective will be to provide solutions to improve heat transport at interfaces and thus control heat transfer (conductive and radiative).

 

III. Skills sought:

The student must be a physicist with research master’s degree (or equivalent) and having knowledge of materials science, optics. thermodynamics and heat/energy transfers. Knowledge in signal processing and Matlab language as well as simulation experience within COMSOL Multiphysics is a plus. He must be motivated to carry out theoretical and experimental work. A good command in French and in English for writing scientific reports and articles is required, as well as good communication skills in order to work with international teams and collaborators.

 

IV. References

1 Y. Yamamoto, T. Imai, K. Tanabe, T. Tsuno, Y. Kumazawa, and N. Fujimori, Diam. Relat. Mater. 6, 1057 (1997).

2 A. Grill, Thin Solid Films 355–356, 189 (1999).

3 P.E. Hopkins, ISRN Mech. Eng. 2013, 19 (2013).

4 Z. Cheng, T. Bai, J. Shi, T. Feng, Y. Wang, M. Mecklenburg, C. Li, K.D. Hobart, T.I. Feygelson, M.J. Tadjer, B.B. Pate, B.M. Foley, L. Yates, S.T. Pantelides, B.A. Cola, M. Goorsky, and S. Graham, ACS Appl. Mater. Interfaces 11, 18517 (2019).

5 A.Y. Jee and M. Lee, Curr. Appl. Phys. 9, 144 (2009).

6 V.F. Dorfman, Thin Solid Films 212, 267 (1992).

7 L. Zhang, K. Zhou, Q. Wei, L. Ma, W. Ye, H. Li, B. Zhou, Z. Yu, C. Te Lin, J. Luo, and X. Gan, Appl. Energy 233–234, 208 (2019).

8 G. Hamaoui, N. Horny, C.L. Gomez-heredia, J.A. Ramirez-rincon, J. Ordonez-miranda, C. Champeaux, F. Dumas-bouchiat, J.J. Alvarado-gil, Y. Ezzahri, K. Joulain, and M. Chirtoc, Sci. Rep. 9, 8728 (2019).

9 M.Y. Wong, C.Y. Tso, T.C. Ho, and H.H. Lee, Int. J. Heat Mass Transf. 164, 120607 (2021).

10 M. Kasprzak, M. Sledzinska, K. Zaleski, I. Iatsunskyi, F. Alzina, S. Volz, C.M. Sotomayor Torres, and B. Graczykowski, Nano Energy 78, 105261 (2020).

http://esycom.u-pem.fr/https://limms-tokyo.orgwww.univ-gustave-eiffel.frwww.esiee.fr

Requirements

Research Field
Engineering
Education Level
Bachelor Degree or equivalent
Research Field
Physics
Education Level
Bachelor Degree or equivalent
Skills/Qualifications
  • At the time of the deadline, applicants must be in possession or finalizing their Master’s degree or equivalent/postgraduate degree.
  • At the time of recruitment, applicants must be in possession of their Master’s degree or equivalent/postgraduate degree which would formally entitle to embark on a doctorate.
  • The student must be a physicist with research master’s degree (or equivalent) and having knowledge of materials science, optics. thermodynamics and heat/energy transfers. Knowledge in signal processing and Matlab language as well as simulation experience within COMSOL Multiphysics is a plus. He must be motivated to carry out theoretical and experimental work. A good command in French and in English for writing scientific reports and articles is required, as well as good communication skills in order to work with international teams and collaborators.
Specific Requirements

The student must be a physicist with research master’s degree (or equivalent) and having knowledge of materials science, optics. thermodynamics and heat/energy transfers. Knowledge in signal processing and Matlab language as well as simulation experience within COMSOL Multiphysics is a plus. He must be motivated to carry out theoretical and experimental work. A good command in French and in English for writing scientific reports and articles is required, as well as good communication skills in order to work with international teams and collaborators.

 

Languages
FRENCH
Level
Good
Languages
ENGLISH
Level
Excellent

Additional Information

Benefits
  • High-quality doctoral training rewarded by a PhD degree, delivered by Université Gustave Eiffel
  • Access to cutting-edge infrastructures for research & innovation.
  • Appointment for a period of 36 months based on a salary of 2 700 € (gross salary per month).
  • Job contract under the French labour legislation in force, respecting health and safety, and social security: 35 hours per week contract, 25 days of annual leave per year.
  • International mobility will be mandatory
  • An international environment supported by the adherence to the European Charter & Code.
  • Access to dedicated CLEAR-Doc trainings with a strong interdisciplinary focus, together with a Career development Plan.
Eligibility criteria

Applicants must fulfil the following eligibility criteria:

  • At the time of the deadline, applicants must be in possession or finalizing their Master’s degree or equivalent/postgraduate degree.
  • At the time of recruitment, applicants must be in possession of their Master’s degree or equivalent/postgraduate degree which would formally entitle to embark on a doctorate.
  • At the time of the deadline, applicants must be in the first four years (full-time equivalent research experience) of their research career (career breaks excluded) and not yet been awarded a doctoral degree. Career breaks refer to periods of time where the candidate was not active in research, regardless of his/her employment status (sick leave, maternity leave etc). Short stays such as holidays and/or compulsory national service are not taken into account.
  • At the time of the deadline, applicants must fulfil the transnational mobility rule: incoming applicants must not have resided or carried out their main activity (work, studies, etc.) in France for more than 12 months in the 3 previous years.
  • One application per call per year is allowed.
  • Applicants must be available full-time to start the programme on schedule (November 1st 2023).
  • Application rules are enforced by the French doctoral system which specifies a standard duration of 3 years for a full-time PhD together with the MSCA standards and the OTM-R European rules as follows.
  • Citizens of any nationality may apply to the programme.
  • There is no age limit.
Selection process
Additional comments
  • The first step before applying is contacting the PhD supervisor. You will not be able to apply without an acceptation letter from the PhD supervisor.
  • International mobility : the student will have an international mobility at the LIMMS laboratory at the University of Tokyo (Japan).
  • Please contact the PhD supervisor for any additional detail on job offer.
  • There are no restrictions concerning the age, gender or nationality of the candidates. Applicants with career breaks or variations in the chronological sequence of their career, with mobility experience or with interdisciplinary background or private sector experience are welcome to apply.
  • Support service is available during every step of the application process by email: clear-doc@univ-eiffel.fr
Website for additional job details

Work Location(s)

Number of offers available
1
Company/Institute
Université Gustave Eiffel
Country
France
City
Marne-La-Vallée
Postal Code
77454
Street
5, Boulevard Descartes
Geofield

Contact

City
Marne-La-Vallée
Website
Street
5, Boulevard Descartes
Postal Code
77454
E-Mail
georges.hamaoui@univ-eiffel.fr