3 results about "Light activation" patented technology

The application discloses a kind of based on double light activation layer's super-sensitivity phototransistor.The phototransistor described in the application is sequentially composed of gate electrode (Si), dielectric layer (HfO2), photoactive ion layer (PbI2), channel (WSe2) and source-drain electrode (Au) from bottom to top.The phototransistor described in the application exhibits extremely high sensitivity advantage: on the one hand, it meets the test demand in extremely weak light environment, and the dark field light intensity detected by it is lower than that of commercial phototransistor by 4 orders of magnitude;On the other hand, its responsivity is higher than that of commercial product by 4 orders of magnitude.PbI2, a photoactive ion layer, is introduced into the traditional phototransistor structure based on traditional two-dimensional material for the first time, which greatly improves the sensitivity of the device and provides a new idea for the development of extremely dark field detection technology.

A stroboscopic device to use a camera and a light source with software that generates synthetic and real video frames, compares the frames via a discriminator, repeat until a convergenc point is achieved where the discriminator can't reliably tell the real video frames from the synthetic video frames, analyzes a dense optical flow field between a first and second frame in a sequence of video frames to detect a motion, and controls a light activation to achieve a stroboscopic effect, wherein once achieved, a system identifies an object and automatically detects movement or vibration of the idenfied object using a trained model, enabling precise visualization and analysis of fast motions in video sequences.

The preparation method of a phosphorescent group 7H-indole [2,3-c] quinoline series derivative with light response belongs to the field of organic intelligent materials. Several organic phosphorescent materials with NBCz as the core provided in the application can realize a color change from green or yellow-green afterglow to orange-yellow afterglow under the influence of different light activation times of a 365nm ultraviolet lamp, so as to achieve light-induced phosphorescent color change-stimulative response, and therefore can be widely applied to anti-counterfeiting, data encryption and sensing applications. The organic phosphorescent material with NBCz as the core has the following advantages: (1) simple and easy-to-follow synthesis route; (2) simple light activation condition; (3) large stokes shift, and remarkable effect.