Notably, most studies focus on encapsulating CPB NCs with MOFs to enhance their stability and performance. While encapsulation has shown promise in enhancing CPB's environmental stability, it faces challenges such as incomplete pore filling, partial encapsulation, and limited control over nanocrystal size. Additionally, synthesizing MOFencapsulated CPB is typically complex and involves multiple steps. Furthermore, complete encapsulation can hinder efficient charge transfer between CPB and its surroundings, potentially compromising performance, including low quantum yield, and compromising the activity of this material as a photocatalyst. Decorating CPB NCs onto MOFs presents a highly effective approach for photocatalytic applications, offering several key advantages. This method preserves the high quantum yield of CPB NCs without compromising their optical properties while simultaneously enhancing the optical activity of both components. The exposed NCs on the MOF surface facilitate superior light absorption and charge separation, significantly boosting photocatalytic performance. Additionally, this structured decoration enhances charge transfer between CPB NCs and MOFs, a crucial factor for efficient photocatalysis. The ability to precisely control NC size allows for fine-tuning of absorption bands, optimizing the material for specific light wavelengths. Furthermore, the decoration technique ensures uniform NC distribution, maintaining consistent optical properties throughout the composite. Beyond photocatalysis, this approach holds great potential for applications such as sensing, where the high quantum yield and improved charge transfer efficiency of CPB NCs can be fully leveraged without the constraints of full encapsulation. This versatility makes the decoration method a powerful strategy for designing advanced materials for photocatalysis, optoelectronics, and other highperformance applications.