Core Viewpoint - The company Foster (603806) emphasizes the need for advanced moisture barrier solutions for perovskite solar cells due to their sensitivity to humidity compared to traditional silicon solar cells [1] Group 1: Company Developments - Foster has developed a packaging solution combining POE film and butyl rubber, which is particularly suitable for encapsulating perovskite solar cell modules [1] - The company received the world's first T V Rheinland certification for its butyl rubber in October this year [1]

Core Viewpoint - The company emphasizes the need for high water resistance in packaging solutions for perovskite solar cells due to their increased sensitivity to moisture compared to traditional silicon solar cells [1] Group 1 - The company has developed a packaging solution using a combination of POE film and butyl rubber, which is particularly suitable for encapsulating perovskite solar cell modules [1] - In October, the company obtained the world's first TÜV Rheinland certification for its butyl rubber product [1]