Perovskite solar cell based on lithium salt-doped spiro-OMeTAD achieves 25.45% efficiency

Researchers in China have proposed a new lithium-free doping strategy to fabricate spiro-OMeTAD-based hole transport layers (HTLs) for applications in perovskite solar cell. A PV device built with a lithium salt-doped HTL achieved a record-breaking efficiency of 25. 45%. Scientists from China's Northwestern Polytechnical University have used a lithium-free doping strategy to fabricate a perovskite solar cell based on a metal-free hole transport layer (HTL) made of spiro-OMeTAd that reportedly offers remarkable efficiency and stability levels. The research team explained that spiro-OMeTAD for ...

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