Centre National De La Recherche Scientifique

Electricite De France

Societe Francaise De Detecteurs Infrarouges-sofradir

UniversitÉ De Versailles—saint-Quentin-En-Yvelines

Isabelle Gerard

Arnaud Etcheberry

Jean-François Guillemoles

Christophe Pautet

Alexandre Causier

Pierre Tran-Van

The invention relates to a method for determining the maximum open circuit voltage and the power that can be output by a photoconverter material subject to a measurement light intensity, the method including the following steps: measuring the photoluminescent intensity of the material, measuring the absorption rate of the photoconverter material at a second wavelength substantially equal to the photoluminescent wavelength of the photoconverter material, determining the maximum open circuit voltage of the photoconverter material with the measurement light intensity by means of the absorption rate and the photoluminescent intensity measured at substantially the same wavelength; said invention being characterized in that the light source and the photoconverter material are arranged such that the angular distributions of the rays incident on and emitted by the lit surface of the material and collected by the detector are substantially identical.

Method for determining characteristics of a photoconverter without contact

A method for removing the growth substrate of a circuit of electromagnetic radiation detection, especially in the infrared or visible range, said detection circuit including a layer of detection of said radiation made of HgCdTe obtained by liquid or vapor phase epitaxy or by molecular beam epitaxy, said detection circuit being hybridized on a read circuit. The method includes submitting the growth substrate to a mechanical or chem.-mech. polishing step or to a chemical etch step to decrease its thickness, all the way to an interface area between the material of the detection circuit and the growth substrate; and submitting the interface thus obtained to an iodine treatment.

Method for manufacturing an electromagnetic radiation detector and detector obtained by a growth substrate removal method

Growing community of inventors

Gif sur Yvette, France

Isabelle Gerard