UV DETECTOR COMPRISING A RECTIFYING P-N JUNCTION

• Main Authors: LETURCQ, Renaud, LENOBLE, Damien, CREPELLIERE, Jonathan, BAHLAWANE, Naoufal
• Format: Patent
• Language: English; French
• Published: 05.04.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

The first object of the invention is directed to a UV detector comprising a p-n junction with a substrate coated with a layer of p-type oxide material, said p-type oxide material being coated with a layer of n-type oxide material which is ZnO. Said UV detector is remarkable in that said p-type oxide material consists of CuCrO2, wherein the ratio Cr/Cu ratio within said layer of p-type oxide material is >1. The second object of the invention is directed to a method for producing said UV-visible detector. It comprises the step of assembling at least one p-n junction with optical means adapted for sensing UV light. The use of said UV-visible detector as flame detector is also disclosed. Le premier objet de l'invention concerne un détecteur UV comprenant une jonction p-n dotée d'un substrat revêtu d'une couche de matériau d'oxyde de type p, ledit matériau d'oxyde de type p étant revêtu d'une couche de matériau d'oxyde de type n qui est ZnO. Ledit détecteur UV est remarquable en ce que ledit matériau d'oxyde de type p est constitué de CuCrO2, le rapport Cr/Cu dans ladite couche de matériau d'oxyde de type p étant > 1. Le second objet de l'invention concerne un procédé de production dudit détecteur UV-visible. Il comprend l'étape d'assemblage d'au moins une jonction p-n à l'aide de moyens optiques adaptés à la détection d'une lumière UV. L'invention concerne également l'utilisation dudit détecteur UV-visible en tant que détecteur de flamme.