Face-to-face all-perovskite tandem solar cells using organic recombination layers

Chemistry Letters 2026 Open access

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Authors: Kei ITO, Keishi Tada, Fumiyasu Awai, Ryousuke Ishikawa, Satoshi Uchida, Hiroshi Segawa
DOI: 10.1093/chemle/upag030
Cited by: 1
References: 31

Abstract

Abstract This research investigated the fabrication of face-to-face tandem solar cells using vacuum lamination to combine a normal-structure top cell with an inverted-structure bottom cell through organic recombination layers. Using carbon nanotubes, the tandem solar cell achieved a power conversion efficiency (PCE) of 2.2%, and additional graphene layers improved the interfacial contact, enhancing PCE to 5.6% with an open circuit voltage (Voc) of 1.9 V. This study demonstrates an effective organic recombination layer and a novel fabrication approach for all-perovskite tandem solar cells.

Fields of Study & Subjects

Perovskite Materials and Applications Organic Electronics and Photovoltaics TiO2 Photocatalysis and Solar Cells

Publication details

Journal / source
Chemistry Letters
Publisher
Oxford University Press (OUP)
Volume
55
Issue
3
Publication date
17 February 2026
Language
EN