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Reference : UMR7588-EMMLHU-005
Workplace : PARIS,PARIS 05
Date of publication : Wednesday, October 14, 2020
Type of Contract : FTC Scientist
Contract Period : 24 months
Expected date of employment : 4 January 2021
Proportion of work : Full time
Remuneration : between 2500 and 3100€ depending on experience
Desired level of education : PhD
Experience required : 1 to 4 years
The host group (INSP-Sorbonne university) in collaboration with new imaging technologies (NIT) is working on the development of a new generation of low-cost infrared camera which active layer is made of nanocrystals with narrow band gap. Preliminary results have demonstrated the possibility to obtain images and films (arXiv preprint arXiv: 2001.11554).
Compared to historical technologies, nanocrystals have a lower manufacturing cost while eliminating the complex hybridization step between the active layer and the read-out circuit. This is particularly promising for reducing the size of the pixels towards the diffraction limit.
The whole challenge of the project is to transfer the concepts developed for single pixel to a camera
The project is very multidisciplinary with both the physico-chemistry of nanoparticles, the design of optoelectronic devices (diode), electronics and the characterization of infrared components.
The candidate will work on transforming a solution of infrared nanocrystals (typically HgTe) into conductive films which must be deposited on a read-out circuits. The goal will be to optimize the quality of the film (thick layer to increase absorption, and uniform over all the size of the image).
The candidate will develop a new diode structure that is compatible with the presence of a read-out circuit. This work could be done using photoemission measurements at the synchrotron in order to rationalize the band alignment of the device.
The candidate will also develop an encapsulation method that is compatible with the active materials (ie low temperature deposition with a limited range of available solvent)
In the long term, we would also like to work on the different techniques for depositing nanoparticles and in particular exploring deposition by printing to limit the quantity of material deposited
A solid background in the synthesis of nanoparticles and on the modification of their surface chemistry is necessary. Experience in a clean room, in characterization of optoelectronic devices or related to the use of read-out circuits would be a plus. Experience in inkjet printing would also be of interest.
The candidate will have to work in an international team and therefore fluency in English is required. French is a plus but not essential
The project is part of the blackQD ERC grant and the Astrid project NITQuantum in collaboration with the company New imaging technologies (NIT). The goal of the project is to develop a new generation of infrared camera which active layer consists of infrared nanocrystals. The work will be done in collaboration with the chemical engineer of the laboratory. The work will also be done in collaboration with NIT. Exchange meetings are therefore planned during which the applicant will have to present his work.
The work will be carried out at the Institut des Nanosciences de Paris (INSP) in the team of Emmanuel Lhuillier (email@example.com). Applicants are strongly encouraged to get in touch before submitting their application.
Constraints and risks
handling of nanoparticles and chemical solvents
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