Within CEA / LITEN, the Laboratory of Photovoltaic Tandem Cells has been working for more than 5 years on the development of PV technology based on perovskite-type materials. This sector has grown considerably on a global scale in recent years due to the rapid increase in efficiency, which today exceed 26 %. However, several challenges remain to be solved, such as the interfaces passivation and stability of the perovskite materials. Moreover the combination of these perovskite materials tandem architecture would allow a considerable gain in the photovoltaic performances of these devices, paving the way for a new generation of very high efficiency cells (> 30 %). Among solar cells in tandem architecture, all perovskite tandem solar cells are a viable option for low cost, low environmental impact and application versatility.

The proposed internship concerns different aspects in terms of material development and characterizations:

-       Material developments: the work will be focused on chemical composition engineering of the perovskite material to improve photovoltaic performances and on the interfacial materials used in a photovoltaic cell in combination with the perovskite layer for the extraction of charges (electrons and holes).

- At the same time, different characterization methods, available in the laboratory or on the INES characterization platforms, will be used to qualify the materials (XRD, UV-visible absorption, PL, SEM,…), the architectures as well as the electrical performances of the final devices (I-V, EQE).

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You are preparing a Master's level diploma in the field of materials and processes.

You are recognized for your rigor, your aptitude for experimental work and teamwork.

Join us, come develop your skills and acquire new ones!