28.3% efficient perovskite-silicon tandem solar cells with mixed self-assembled monolayers

A certified 28.3% efficient monolithic perovskite-silicon tandem (PST) solar cell with a mixed self-assembled monolayer (SAM) containing carbazole cores with H-ligands (2PACz) and methoxy-ligands (MeO-2PACz) is reported. Our analysis revealed that there existed uncovered areas of MeO-2PACz on indium...

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Bibliographic Details
Published in:Applied physics express 2022-07, Vol.15 (7), p.76503
Main Authors: Mishima, Ryota, Hino, Masashi, Kanematsu, Masanori, Kishimoto, Kazuhisa, Ishibashi, Hirotaka, Konishi, Katsunori, Okamoto, Shimpei, Irie, Toru, Fujimoto, Takahisa, Yoshida, Wataru, Uzu, Hisashi, Adachi, Daisuke, Yamamoto, Kenji
Format: Article
Language:English
Subjects:
monolithic perovskite-silicon tandem solar cell
perovskite solar cell
self-assembled monolayer
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Summary:A certified 28.3% efficient monolithic perovskite-silicon tandem (PST) solar cell with a mixed self-assembled monolayer (SAM) containing carbazole cores with H-ligands (2PACz) and methoxy-ligands (MeO-2PACz) is reported. Our analysis revealed that there existed uncovered areas of MeO-2PACz on indium tin oxide, which would be caused by the steric effect, and they were filled with 2PACz in the mixed SAM, leading to the improvement of fill factors in the PST cells. This result was explained by the passivation qualities as hole transport layers and the local interaction between methoxy ligands and perovskite materials.
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/ac727b