Abstract: The present invention relates to fluorescent probe compounds for tumor-targeted imaging, and methods of synthesis and use thereof. The compounds utilize, for the first time, an antitumor drug comprising a pyrrolo[2,3-d]pyrimidine core structure as a targeting ligand, which is conjugated to a fluorescent dye through a linker moiety. The structure of the compound is shown in Formula I. The compound demonstrates high affinity and selectivity for tumor cells expressing target receptors, enabling localization, qualitative and quantitative analysis through in vitro and in vivo tracking, receptor affinity studies, and mechanism of action investigations, thereby exhibiting high specificity, sensitivity, and visualization capability. The fluorescent probe of the present invention achieves rapid clearance from normal tissues while maintaining prolonged retention at tumor sites, thereby enabling in vivo diagnostic functionality.

Abstract: The present invention provides a conductive paste characterized by a crystal-based corrosion binder being combined with a glass frit and mixed with a metallic powder and an organic carrier. Methods for preparing each components of the conductive paste are disclosed including several embodiments of prepare Pb—Te—O-based crystal corrosion binder characterized by melting temperatures in a range of 440° C. to 760° C. and substantially free of any glass softening transition upon increasing temperature. Method for preparing the conductive paste includes mixture of the components and a grinding process to ensure all particle sizes in a range of 0.1 to 5.0 microns. Method of applying the conductive paste for the formation of a front electrode of a semiconductor device is presented to illustrate the effectiveness of the crystal-based corrosion binder in transforming the conductive paste to a metallic electrode with good ohmic contact with semiconductor surface.

Abstract: The present invention provides an electrically conductive paste for a front electrode of a solar cell and a preparation method thereof. The electrically conductive paste is composed of a corrosion binder, a metallic powder and an organic carrier. The corrosion binder is one or more glass-free Pb—Te based crystalline compounds having a fixed melting temperature in a range of 440° C. to 760° C. During a sintering process of the electrically conductive paste for forming an electrode, the corrosion binder is converted into a liquid for easily corroding and penetrating an antireflective insulating layer on a front side of the solar cell, so that a good ohmic contact is formed. At the same time, the electrically conductive metallic powder is wetted, and the combination of the metallic powder is promoted. As a result, a high-conductivity front electrode of a crystalline silicon solar cell is formed.

Abstract: The present invention provides a conductive paste characterized by a crystal-based corrosion binder being combined with a glass frit and mixed with a metallic powder and an organic carrier. Methods for preparing each components of the conductive paste are disclosed including several embodiments of prepare Pb—Te—O-based crystal corrosion binder characterized by melting temperatures in a range of 440° C. to 760° C. and substantially free of any glass softening transition upon increasing temperature. Method for preparing the conductive paste includes mixture of the components and a grinding process to ensure all particle sizes in a range of 0.1 to 5.0 microns. Method of applying the conductive paste for the formation of a front electrode of a semiconductor device is presented to illustrate the effectiveness of the crystal-based corrosion binder in transforming the conductive paste to a metallic electrode with good ohmic contact with semiconductor surface.

Abstract: The present invention pertains to solar cell technology. More specifically, the present invention relates to a conductive paste for solar cell light-receiving surface and a glass frit used for manufacture of the conductive paste. The glass frit comprises a glass network former, a glass network intermediate, a heavy metal fluxing agent, and functional agent. By controlling the ratio of the glass networking intermediate in the glass frit, the conductive paste can greatly reduce series resistance of the solar cell, and significantly increase the photovoltaic conversion efficiency. The solar cell using the present conductive paste can achieve consistently high open-circuit voltage, high short-circuit current, low series resistance, high filling factor, and high photovoltaic conversion efficiency.