Toward Large-Area and Fully Solution-Sheared Perovskite Solar Cells

Gizachew Belay Adugna; Seid Yimer Abate; Wen-Ti Wu; Yu-Tai Tao

doi:10.1021/acsami.1c03460

Toward Large-Area and Fully Solution-Sheared Perovskite Solar Cells

ACS Appl Mater Interfaces. 2021 Jun 9;13(22):25926-25936. doi: 10.1021/acsami.1c03460. Epub 2021 May 25.

Authors

Gizachew Belay Adugna^{1

2

3}, Seid Yimer Abate¹, Wen-Ti Wu¹, Yu-Tai Tao¹

Affiliations

¹ Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan.
² Taiwan International Graduate Program (TIGP), Sustainable Chemical Science and Technology (SCST), Academia Sinica, Taipei 115, Taiwan.
³ Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.

PMID: 34033485
DOI: 10.1021/acsami.1c03460

Abstract

The solution shearing technique was used to prepare the various layers involved in perovskite solar cells (PSCs), with a device structure of FTO/c-TiO₂/mp-TiO₂/CH₃NH₃PbI₃/Spiro-OMeTAD/Ag, in an area as large as 6 × 10 cm². The film morphology and thickness of each layer were optimized by varying respective shearing parameters. The fully solution-sheared PSCs exhibited a champion power conversion efficiency (PCE) of 15.89%. In comparison, the PSCs with only perovskite layer solution-sheared and other layers spin-coated showed a high PCE of 17.27%. These results demonstrate the potential of a simple, rapid, cost-effective, and scalable solution shearing process to fabricate large-area PSCs and modules.

Keywords: fully sheared perovskite solar cells; large-area perovskite film; perovskite film morphology; perovskite solar cell; solution shearing.