New Patent?19 Apr 2024 17:37
Nanoco Group has been granted a patent for a photodetector with a unique design involving two-dimensional quantum dots (2D QDs) dispersed in charge transport materials. The heterostructure photodetector includes specific materials like zinc, titanium, vanadium, or nickel in the interlayer, offering enhanced performance. A recently granted patent (Publication Number: US11903225B2) discloses a heterostructure photodetector designed with specific layers and materials to enhance its performance. The photodetector includes a first electrode, a first photoabsorbing layer made of a two-dimensional (2D) nanosheets, an interlayer made of a metal oxide with zinc, titanium, vanadium, or nickel, a second photoabsorbing layer made of 2D quantum dots (QDs), and a second electrode. The combination of materials and layers aims to create a built-in electric field for improved functionality. Additionally, the photodetector may include a transition layer between the two photoabsorbing layers, each layer may contain charge transport materials, and the overall thickness of the layers ranges from about 50 nm to 800 nm.
Furthermore, the patent details specific configurations and compositions for the photoabsorbing layers, including the percentage of 2D nanosheets and 2D QDs present in each layer. The patent also mentions the thickness and dimensions of the nanosheets, emphasizing their properties for optimal performance. Additionally, the inclusion of charge transport materials in each layer further enhances the photodetector's capabilities. Overall, the patent highlights a novel design for a heterostructure photodetector that leverages unique materials and layering techniques to improve its efficiency and sensitivity in detecting light.