This paper considers an optimal investment and reinsurance problem with catastrophic risk. The insurer takes both the ordinary and the catastrophe insurance businesses. We assume that the occurrence of the catastrophe follows a Poisson process and influences the ordinary insurance business. The...

Anti-counterfeiting and encryption are key technologies for information transmission in modern society. Whereas, most optical materials reported only provide single luminous color and fixed response mode, which limits their safety in advanced anti-counterfeiting applications. In this work, we...

All-inorganic perovskite quantum dots (PQDs) CsPbX 3 (X = Cl and Br) are expected a new generation of promising luminescent materials with narrow-band emissions, color-tunability, and high photoluminescence quantum yields (PLQYs), but the instability towards humid environments and high...

The photocarrier dynamics in polycrystalline CdTe films is closely related to device performance. However, the test results obtained at different illumination intensity may be different, and even significantly deviate from the ones in practical application environments. Here, the photocarrier...