High-efficiency inverted tandem polymer solar cells with step-Al-doped MoO3 interconnection layer

High-efficiency inverted tandem polymer solar cells with step-Al-doped MoO3 interconnection layer

A highly transparent and physically robust step-Al-doped MoO3 layer was successfully utilized as the interconnection layer (ICL) to fabricate high-efficiency inverted tandem polymer solar cells (PSCs). The inverted tandem cell constructed by the same PCDTBT:PC70BM active layer showed a power convers...

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Bibliographic Details
Main Authors: Liu, Jian, Shao, S., Fang, G., Wang, J., Meng, B., Xie, Z., Wang, L.
Format: Journal Article
Published: Elsevier BV * North-Holland 2014
Online Access:http://hdl.handle.net/20.500.11937/73218
Description
Summary:A highly transparent and physically robust step-Al-doped MoO3 layer was successfully utilized as the interconnection layer (ICL) to fabricate high-efficiency inverted tandem polymer solar cells (PSCs). The inverted tandem cell constructed by the same PCDTBT:PC70BM active layer showed a power conversion efficiency (PCE) of 6.88% with equivalent external quantum efficiency of nearly 80%, implying a high charge-collection efficiency in tandem structure. Incorporation of two sub-cells with complementary absorption spectra leads to further increase of PCE over 7.31%, which is the best results for tandem PSCs with PEDOT:PSS-free interconnection layer. © 2013 Elsevier B.V.

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