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Advanced Materials Interfaces | Vol.3, Issue.13 | | Pages

Moisture and Oxygen Enhance Conductivity of LiTFSI-Doped Spiro-MeOTAD Hole Transport Layer in Perovskite Solar Cells

Luis K. Ono Zafer Hawash Yabing Qi

Abstract

Moisture is necessary to enhance the conductivity of LiTFSI-doped, hole transport layers. Photoemission spectroscopy (PES) and Hg-drop current–voltage measurements are used to study the effects of H2O vapor, dry O2, and ambient air on Li-bis(trifluoromethanesulfonyl)-imide (LiTFSI)-doped, spiro-MeOTAD. PES shows that humidity is the component of air that causes LiTFSI dopants to redistribute across spiro-MeOTAD films, leading to an enhanced conductivity.

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Moisture and Oxygen Enhance Conductivity of LiTFSI-Doped Spiro-MeOTAD Hole Transport Layer in Perovskite Solar Cells

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Keywords

litfsi dopants libistrifluoromethanesulfonylimide litfsidoped spiromeotad conductivity currentvoltage h2o vapor dry o2 ambient

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Luis K. Ono,Zafer Hawash, Yabing Qi,.Moisture and Oxygen Enhance Conductivity of LiTFSI-Doped Spiro-MeOTAD Hole Transport Layer in Perovskite Solar Cells. 3 (13),.

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