Issue 2, 2021

Solution-processed ITO nanoparticles as hole-selective electrodes for mesoscopic lead-free perovskite solar cells

Abstract

Carbon-based mesoscopic perovskite solar cells (PSCs) are promising for printable next-generation photovoltaic applications, but the optical properties of their carbon layer limit their light harvesting efficiency. We developed solution-processable indium-tin-oxide (ITO) nanoparticles to replace carbon electrodes for mesoscopic lead-free tin-based PSCs. The ITO electrodes were fabricated via screen printing with 1, 2, 4, 6 and 8 layers corresponding to the thicknesses of 2.1–14.3 μm; tin perovskite (GA0.2FA0.8SnI3) with SnF2 (20%) and EDAI2 (15%) (GA represents guanidinium; EDAI2 represents ethylenediammonium diiodide) was drop-casted on the device to produce a mesoporous structure of FTO/TiO2/perovskite/Al2O3/ITO. The best device achieved a power conversion efficiency of 5.4% with great stability. These solution-processed ITO electrodes are a landmark to shed light on new paths for the commercialization of lead-free PSCs.

Graphical abstract: Solution-processed ITO nanoparticles as hole-selective electrodes for mesoscopic lead-free perovskite solar cells

  • This article is part of the themed collection: Perovskites

Supplementary files

Article information

Article type
Paper
Submitted
05 พ.ย. 2563
Accepted
07 ธ.ค. 2563
First published
08 ธ.ค. 2563
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2021,2, 754-759

Solution-processed ITO nanoparticles as hole-selective electrodes for mesoscopic lead-free perovskite solar cells

D. Song, L. Y. Hsu, C. Tseng and E. W. Diau, Mater. Adv., 2021, 2, 754 DOI: 10.1039/D0MA00860E

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