Effect of alkyl spacer length of thienyl-substituted carbazole-type self-assembled monolayers on the performance of inverted perovskite solar cells

Key Points

• The research aims to assess how different alkyl spacer lengths in thienyl-substituted carbazole affect the performance of inverted perovskite solar cells.
• Synthesis of thienyl-substituted carbazole-type self-assembled monolayers with varying alkyl spacer lengths.
• Implementation of these monolayers as hole transport layers in inverted perovskite solar cells.
• Performance evaluation of the solar cells with different monolayer compositions.
• T-4PACz demonstrated the highest efficiency among the synthesized monolayers.
• Monolayers with optimal spacer lengths led to improved charge transport properties.
• Study reveals a direct correlation between spacer length and solar cell performance.