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Volume 14
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10.3390/cryst14010068
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Article

Solution-Processed Monolithic Tandem Perovskite/n-Si Hybrid Solar Cells Using MoO3/InZnO Bilayer-Based Interconnecting and Window Layers

by
Ryuichi Ukai
1,
Yoko Wasai
2,
Yuki Izumi
2 and
Hajime Shirai
1,*
1
Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura, Saitama 338-8570, Japan
2
Analytical Technology Division, Horiba Techno Service, Ltd., Kanda, Chiyoda, Tokyo 101-0063, Japan
*
Author to whom correspondence should be addressed.
Crystals 2024, 14(1), 68; https://doi.org/10.3390/cryst14010068
Submission received: 17 December 2023 / Revised: 27 December 2023 / Accepted: 28 December 2023 / Published: 8 January 2024
(This article belongs to the Topic Surface and Interface Engineering in Catalytic and Optoelectronic Applications)
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Abstract

A metal oxide-based interconnecting and window layer consisting of a molybdenum oxide (MoO3)/Zn-doped In2O3 (IZO) bilayer was investigated in efficient solution-processed perovskite/n-Si monolithic tandem solar cells using formamidinium cesium lead triiodide, FA0.9Cs0.1PbI3, and poly(3,4-ethylenedioxythiophene)/poly(polystyrene sulfonate) (PEDOT:PSS). The MoO3/IZO bilayer with and without Au nanoparticle play a significant role in the charge extraction and recombination within the interconnecting layer and the window layer of the top cell, respectively. A power conversion efficiency of 18–19% was achieved with a short-circuit current, Jsc, of 17.8 mA/cm2; an open-circuit voltage, Voc, of 1.48 V; and an FF of 0.74 by adjusting the layer thicknesses of MoO3 (5 nm), Au nanoparticle layer (5 nm), and sputtered IZO (42 nm for ICL and 80 nm for window layer).
Keywords: Si/perovskite tandem solar cells; MoO3/IZO interconnecting layer; PEDOT:PSS; FA0.9Cs0.1PbI3; Au nanoparticle Si/perovskite tandem solar cells; MoO3/IZO interconnecting layer; PEDOT:PSS; FA0.9Cs0.1PbI3; Au nanoparticle

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MDPI and ACS Style

Ukai, R.; Wasai, Y.; Izumi, Y.; Shirai, H. Solution-Processed Monolithic Tandem Perovskite/n-Si Hybrid Solar Cells Using MoO3/InZnO Bilayer-Based Interconnecting and Window Layers. Crystals 2024, 14, 68. https://doi.org/10.3390/cryst14010068

AMA Style

Ukai R, Wasai Y, Izumi Y, Shirai H. Solution-Processed Monolithic Tandem Perovskite/n-Si Hybrid Solar Cells Using MoO3/InZnO Bilayer-Based Interconnecting and Window Layers. Crystals. 2024; 14(1):68. https://doi.org/10.3390/cryst14010068

Chicago/Turabian Style

Ukai, Ryuichi, Yoko Wasai, Yuki Izumi, and Hajime Shirai. 2024. "Solution-Processed Monolithic Tandem Perovskite/n-Si Hybrid Solar Cells Using MoO3/InZnO Bilayer-Based Interconnecting and Window Layers" Crystals 14, no. 1: 68. https://doi.org/10.3390/cryst14010068

APA Style

Ukai, R., Wasai, Y., Izumi, Y., & Shirai, H. (2024). Solution-Processed Monolithic Tandem Perovskite/n-Si Hybrid Solar Cells Using MoO3/InZnO Bilayer-Based Interconnecting and Window Layers. Crystals, 14(1), 68. https://doi.org/10.3390/cryst14010068

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