Selective Spin Dewetting for Perovskite Solar Modules Fabricated on Engineered Au/ITO Substrates

Son Singh; Rahim Abdur; Md. Abdul Kuddus Sheikh; Bhabani Sankar Swain; Jindong Song; Jae-Hun Kim; Ho-Seok Nam; Sung Hyon Kim; Hyunseung Lee; Jaegab Lee

doi:10.20944/preprints202401.1454.v1

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preprints.org > chemistry and materials science > materials science and technology > doi: 10.20944/preprints202401.1454.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Selective Spin Dewetting for Perovskite Solar Modules Fabricated on Engineered Au/ITO Substrates

Son Singh

Rahim Abdur

Md. Abdul Kuddus Sheikh

Version 1 : Received: 18 January 2024 / Approved: 19 January 2024 / Online: 19 January 2024 (06:06:36 CET)

A peer-reviewed article of this Preprint also exists.

Singh, S.; Abdur, R.; Sheikh, M.A.K.; Swain, B.S.; Song, J.; Kim, J.-H.; Nam, H.-S.; Kim, S.-H.; Lee, H.; Lee, J. Selective Spin Dewetting for Perovskite Solar Modules Fabricated on Engineered Au/ITO Substrates. Nanomaterials 2024, 14, 424. Singh, S.; Abdur, R.; Sheikh, M.A.K.; Swain, B.S.; Song, J.; Kim, J.-H.; Nam, H.-S.; Kim, S.-H.; Lee, H.; Lee, J. Selective Spin Dewetting for Perovskite Solar Modules Fabricated on Engineered Au/ITO Substrates. Nanomaterials 2024, 14, 424.

Abstract

We introduce a novel method for fabricating perovskite solar modules using selective spin-coating on various Au/ITO patterned substrates. These patterns were engineered for twofold purposes: (1) to enhance selectivity of monolayers primarily self-assembling on the Au electrode, and (2) to enable seamless interconnection between cells through direct contact of the top electrode and the hydrophobic Au connection electrode. Utilizing SAMs-treated Au/ITO, we achieved sequential selective deposition of the electron transport layer (ETL) and the perovskite layer on the hydrophilic amino-terminated ITO, while the hole transport layer (HTL) was deposited on the hydrophobic CH3-terminated Au connection electrodes. Importantly, our approach had negligible impact on the series resistance of the solar cells, as evidenced by the measured specific contact resistivity of the multilayers. A significant outcome was the production of a 6-cell series-connected solar module with a notable average PCE of 8.32%, providing a viable alternative to the conventional laser scribing technique.

Keywords

Perovskite mini-module; Self-assembled Monolayers; Selective deposition; Dewetting; Connection Electrode; Hexadecanethiol

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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