3results about How to "Wide spectral range" patented technology

The application belongs to the field of organic photovoltaics, and relates to a kind of polymer photovoltaic material and its preparation method and application. Double bromide compound A and double side tin compound B are subjected to Stille cross coupling reaction under the action of palladium catalyst, and the polymer photovoltaic material is obtained. The polymer photovoltaic material prepared by the application has an ultra-wide absorption spectrum range from 300 nm to 1200 nm. Such material exhibits an ultra-wide spectral range and a high extinction coefficient, and embodies excellent light absorption capacity. The strong light absorption capacity of the polymer photovoltaic material prepared by the application will help to improve the device efficiency of organic photovoltaics and improve the energy conversion efficiency of the device. The polymer photovoltaic material prepared by the application provides reference value for the design of functional materials in many fields of organic photoelectricity and solar energy utilization and conversion.

The application discloses an infrared in-situ transmission sample assembly and an infrared transmission detection system. The infrared in-situ transmission sample assembly comprises a temperature-controllable heating tube, a metal tube sleeve and a sample support. The temperature-controllable heating tube comprises a tube main body. The metal tube sleeve comprises a main tube sleeve which is inserted into the tube main body and is electrically connected with a temperature controller. The sample support comprises a support main body which is inserted into the main tube sleeve and has a tubular structure with open ends. A groove is formed in one end of the support main body along the side surface, and the groove is used for inserting a sample to be measured so that the sample to be measured is in the pipeline of the support main body. The sample assembly can directly place the sample without loading or clamping other window materials, can avoid the breakage of the sample, is beneficial to the evaporation of a small amount of water vapor in the heating process, and thus can avoid the interference of water vapor in the measurement process. The application provides a more accurate and reliable sample accessory for the measurement and analysis of the infrared transmission spectrum.

The embodiment of the present application discloses a kind of single-mode tapered waveguide spectrum detection device and its detection method;The embodiment of the present application includes input waveguide, it is configured to support single-mode propagation in target working wavelength range, for receiving light to be measured and make it transmit in single-mode form;Tapered waveguide, its input end is coupled with the output end of input waveguide, tapered waveguide has gradually changing cross-sectional dimension along the direction of light propagation, and different wavelengths of light produce distinguishable leakage light in different axial positions when propagating in it;Detector array is distributed along at least one side of tapered waveguide, for detecting the leakage light intensity of tapered waveguide at different axial positions;Wherein, device is configured to output the spectral information of light to be measured based on the mapping relationship between preset wavelength and axial position according to leakage light intensity.It can realize high spectral resolution and high spectral contrast while maintaining wide spectral range by the embodiment of the present application.