2 results about "Germanium selenide" patented technology

The application discloses a kind of based on two-dimensional germanium selenide / molybdenum disulfide polarized photoelectric detector and preparation method thereof, belong to the technical field of germanium selenide crystal material.The application discloses a kind of based on two-dimensional germanium selenide / molybdenum disulfide polarized photoelectric detector, adopt two-dimensional germanium selenide as anisotropic two-dimensional semiconductor layer, adopt molybdenum disulfide as two-dimensional semiconductor layer, molybdenum disulfide is main conductive channel, germanium selenide is as top layer photosensitive material, the built-in electric field of the PN junction formed in vertical direction, the separation of photo-generated carrier is enhanced, so as to improve photoelectric detection performance.Using the method of gas phase transmission, germanium selenide crystal is synthesized using germanium powder, selenium powder and crystalline iodine powder as anisotropic two-dimensional semiconductor layer two-dimensional germanium selenide, with the advantages of simple operation steps, low production cost, can be used for industrial production.

The application discloses a preparation method of germanium diselenide and belongs to the technical field of compound preparation. The preparation method of germanium diselenide provided by the application comprises the following steps: mixing germanium powder screened and selenium powder screened and ball milling, then heating and reacting in an inert gas environment, crushing after removing the surface attachments of the heating and reaction product, and heat-insulating and reacting in the inert gas environment, so that golden yellow crystalline germanium diselenide can be obtained. The obtained germanium diselenide is high in purity, free of segregation, and low in loss, namely, high in yield. Moreover, the preparation method provided by the application is simple in operation, does not need special equipment, and is beneficial to practical production and application.