Flexible perovskite-silicon tandem solar cell by Japanese Scientist that achieved a record-breaking 26.5% efficiency, the highest ever for a flexible version of this technology.

    Flexible perovskite-silicon tandem solar cell by Japanese Scientist that achieved a record-breaking 26.5% efficiency, the highest ever for a flexible version of this technology. 
 The device uses a bendable, thin-film crystalline silicon bottom cell with a low-temperature processed perovskite top cell, creating a lightweight and potentially deployable solar solution for various applications. 

Key Features of the Flexible Tandem Cell
Tandem Structure:-
  It combines a perovskite cell on top with a thin-film silicon cell on the bottom, allowing each to capture different parts of the solar spectrum for higher overall efficiency. 
Flexibility:-
 The device is built on a bendable silicon substrate, enabling it to be used in applications where traditional rigid solar panels are impractical. 
Efficiency Record:-
 With a 26.5% efficiency, this device holds the record for flexible perovskite-silicon tandem solar cells. 
Manufacturing Method:-
 The top perovskite layer is fabricated using a low-temperature process to prevent damage to the underlying flexible silicon cell. 

Significance of the Development 
High-Efficiency Flexible Solar:
 This breakthrough demonstrates that high conversion efficiencies can be achieved in flexible solar cell designs, a significant step towards more versatile solar technologies.
Potential Applications:-
 The technology could lead to lightweight, flexible solar panels that can be integrated into various surfaces and devices where rigid panels are not suitable.
Advancing Research:-
 The findings provide a strong foundation for future research, aiming to further improve current matching, bending properties, and the overall durability of these advanced solar cells.
   Achieved Efficiencies:-
A 2024 study achieved an efficiency of 26.5% for a flexible PST, notes ResearchGate. 
This was achieved through optimizing microtexturing on the silicon surface and improving the perovskite layer deposition. 

MJF Lion ER YK Sharma 

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