Tetra methyl substituted Cu(II) phthalocyanine as alternative hole transporting material for organometal halide perovskite solar cells

⿢Tetra methyl substituted copper phthalocyanine as alternative hole transporting material.⿢Application to organometal halide perovskite solar cells.⿢Comparison with unsubstituted copper phtalocyanine.⿢Enhancement of Q band transitions due to more successful packaging. Copper phthalocyanine is a prom...

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Bibliographic Details
Published in:Applied surface science 2016-01, Vol.360, p.767-771
Main Authors: Sfyri, Georgia, Kumar, Challuri Vijay, Wang, Yu-Long, Xu, Zong-Xiang, Krontiras, C.A., Lianos, Panagiotis
Format: Article
Language:English
Subjects:
Copper
Copper phthalocyanine
Hole transporting material
Molecular orbitals
Perovskite solar cells
Perovskites
Photons
Photovoltaic cells
Scavenging
Solar cells
Transporting
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Summary:⿢Tetra methyl substituted copper phthalocyanine as alternative hole transporting material.⿢Application to organometal halide perovskite solar cells.⿢Comparison with unsubstituted copper phtalocyanine.⿢Enhancement of Q band transitions due to more successful packaging. Copper phthalocyanine is a promising hole transporting material, which can be employed with solid state perovskite solar cells. Tetra methyl substituted copper phthalocyanine was presently studied as a hole transporting material and demonstrated improved performance with respect to unsubstituted copper phthalocyanine. This material shows a strong absorption in the Visible and Near IR part of the electromagnetic spectrum contributing to the absorption of photons. Its LUMO and HOMO level are favourably positioned for injecting electrons and scavenging holes. Methyl substitution facilitates closer molecular packing leading to a stronger extinction coefficient, stronger Ͽ⿿Ͽ interaction and higher charge carrier mobility.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2015.11.065