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P-11 HTM is a solution-processable organic small molecule designed for n-i-p perovskite solar cells. It delivers higher efficiency and superior stability than the widely used Spiro-OMeTAD in device applications.
For p-i-n devices, the P-11 HTM (bottom contact) is only compatible with vacuum-deposited perovskite layers
because it can be affected by the solvents used in subsequent processing.