DEGRADATION, TRANSPORT, AND RECOMBINATION PROPERTIES IN LAYERS AND AT INTERFACES OF HYBRID SOLAR CELLS

20 May 2024
Job Information

Organisation/Company

Université

Research Field

Physics
Technology » Energy technology
Engineering

Researcher Profile

Recognised Researcher (R2)
Leading Researcher (R4)
First Stage Researcher (R1)
Established Researcher (R3)

Country

France

Application Deadline

29 Jun 2024 - 22:00 (UTC)

Type of Contract

Temporary

Job Status

Full-time

Offer Starting Date

1 Oct 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

Framework
Top cell absorber stability and interfaces with charge transport layers (CTL) in tandems is critical. This research will undertake studies on the transport properties of CTLs, and recombination in absorber/CTL stacks. This uses a CEA/DTS lab in-house Transfer Length Method (TLM) tool under illumination and at elevated temperatures and specific sample preparation to measure lateral conduction in layer of Perovskite cells on silicon. Similar test structures will be devised in order to correlate TLM data with Hall, photo Hall at GEEPS to assess carrier concentrations and mobilities for a broad range of absorber/CTL combinations. These measurements will be carried out over a wide range of temperature to determine the variation of the electronic properties and devise more precise transport and degradation models. In collaboration with Laboratoire des Solides Irradiés (UMR 7642) lab (Pr Luca Perfetti, Ecole Polytechnique), samples will be irradiated with under THz, this experiment yields an effective conductivity fitted with a Drude model considering the full stack of materials and can be compared to the Hall measurements. Beyond, the electrical measurements, we aim to develop a new fast modulated photoluminescence technique (fast MPL) to probe fast recombination mechanisms and determine the effective minority carrier lifetime. This approach will permit the investigation of perovskite materials that are much faster to recombine that PV grade substrate and films.

Experimental methods
The candidate will have access to the nanofabrication and characterization facilities of the host laboratories to develop her/his research. A wide range of experimental techniques are available to evaluate the structural (e.g. SEM, Raman, AFM, KPFM) as well as optical (IR, UV-Vis spectroscopies) and electrical properties (Hall, I-V) of the various materials investigated. Part of the project will consist of developing a new high frequency modulated photo luminescence technique (MPL).

Funding category: Autre financement public
https://anr.fr/ProjetIA-22-PETA-0015
PHD title: doctorat de physique
PHD Country: France

Requirements
Specific Requirements

Applicant profile & skills
The project is experimental and involves various technological and characterization aspects. Hands on and dedicated students with excellent physics and/or EEng background are encouraged to apply. Python and MATLAB programming skills appreciated.

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

Université

Country

France

City

Gif sur Yvette

Geofield

Where to apply

Website

https://www.abg.asso.fr/fr/candidatOffres/show/id_offre/123990

Contact

Website

https://www.geeps.centralesupelec.fr/

STATUS: EXPIRED