High Efficiency Inverted Planar Perovskite Solar Cells with Solution-Processed NiOx Hole Contact

• Inverted planar perovskite solar cells (IP-PSCs) with solution-processed nickel oxide (NiOx ) hole contact represent a promising approach for achieving high efficiency in photovoltaic devices.

  
  

  Inverted Planar Perovskite Solar Cells (IP-PSCs): Perovskite solar cells are a type of solar cell that use perovskite-structured materials, typically a hybrid organic-inorganic lead or tin halide-based material, as the light-harvesting layer. Inverted planar architecture refers to the arrangement of the layers within the solar cell, where the electron transport layer (ETL) and the hole transport layer (HTL) are inverted compared to traditional planar perovskite solar cells. This architecture often leads to better device stability and performance.

  
  

  Solution-Processed NiOx Hole Contact: In solar cells, a hole transport layer (HTL ) is essential for extracting and transporting positive charges (holes) from the perovskite layer to the electrode. Nickel oxide (NiOx) is a promising material for this purpose. Solution processing refers to the method of depositing the NiOx layer onto the perovskite layer using a solution-based technique, which can be more cost-effective and scalable compared to vacuum-based deposition methods.

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• Combining these two elements, high efficiency IP-PSCs with solution-processed NiOx hole contacts offer several advantages:

  Improved Efficiency: NiOx as a hole transport material can efficiently extract and transport holes, leading to higher device efficiency.

  
  

  Enhanced Stability: Inverted architecture and the use of NiOx can contribute to improved device stability, making the solar cells more durable over time, especially in outdoor or harsh environmental conditions.

  
  

  Scalability: Solution processing of NiOx allows for easier integration into large-scale manufacturing processes, potentially reducing production costs and making the technology more accessible.

  
  

  Efficient and stable perovskite solar cells, bringing us closer to realizing their full potential for renewable energy generation.