Enhancing Perovskite Thin-Film Interfaces for Solar Cells

• Revolutionary research from HKBU, HKUST, and Yale uncovers key to enhancing perovskite solar cells. Say goodbye to surface concavities and hello to improved efficiency and stability.

Researchers from Hong Kong Baptist University, HKUST, and Yale University have discovered surface concavities on individual crystal grains in perovskite thin films, impacting film properties and reliability. They developed a method to eliminate these concavities, improving the efficiency and stability of perovskite solar cells (PSCs). By using a surfactant molecule, they were able to manipulate strain evolution and ion diffusion during film formation, resulting in enhanced efficiency retention under various tests.

Prof. Zhou Yuanyuan emphasized the importance of understanding and manipulating the microstructure of perovskite materials for improved solar cell performance. PhD student Zhang Yalan highlighted the complexity of perovskite microstructure and the development of novel approaches to study it under Prof. Zhou's guidance. This research paves the way for more efficient and stable perovskite solar cells.

How did researchers improve efficiency and stability of perovskite solar cells?

• Researchers discovered surface concavities on individual crystal grains in perovskite thin films, impacting film properties and reliability
  
• Developed a method to eliminate these concavities, improving the efficiency and stability of perovskite solar cells (PSCs)
  
• Used a surfactant molecule to manipulate strain evolution and ion diffusion during film formation, resulting in enhanced efficiency retention under various tests
  
• Prof. Zhou Yuanyuan emphasized the importance of understanding and manipulating the microstructure of perovskite materials for improved solar cell performance
  
• PhD student Zhang Yalan highlighted the complexity of perovskite microstructure and the development of novel approaches to study it under Prof. Zhou's guidance
• This research paves the way for more efficient and stable perovskite solar cells.