Characteristics and performance of organic photovoltaic cells having the active layer fabricated by ternary organic semiconducting materials

Imamura, Shogo; Mizutani, Teruyoshi; Kojima, K.; Ochiai, Shizuyasu

doi:10.1117/1.3573901

J. Photon. Energy

2011

DOI: 10.1117/1.3573901

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Characteristics and performance of organic photovoltaic cells having the active layer fabricated by ternary organic semiconducting materials

Shogo Imamura

Teruyoshi Mizutani

K. Kojima

et al.

Abstract: Abstract. The organic semiconductors of poly(3-hexylthiophene) (P3HT), poly(3-octylthiophene)(P3OT), poly(3-dodecylthiophene) (P3DDT) and [6,6]-phenyl C 71 butyric acid methyl ester (PC71BM) were used to make active layers. The active layers of an organic thin film solar cell were fabricated by the P3HT/PC71BM, P3HT/P3OT/PC71BM and P3HT/P3DDT/PC71BM fluid, respectively. Compared with the performances, the performance of the organic solar cell fabricated by P3HT/P3OT/PC71BM thin film indicates the best. The ope… Show more

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Simulation and Comparison of the Photovoltaic Performance of Conventional and Inverted Organic Solar Cells with SnO2 as Electron Transport Layers

Boudia,

Wang,

Zhao

2024

Energies

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Extensive research on organic solar cells (OSCs) over the past decade has led to efficiency improvements exceeding 18%. Enhancing the efficacy of binary organic solar cells involves multiple factors, including the strategic selection of materials. The choice of donor and acceptor materials, which must exhibit complementary absorption spectra, is crucial. Additionally, optimizing the solar cell structure, such as adjusting the thickness of layers and incorporating hole-transporting layers, can further increase efficiency. In this study, we simulated three different novels within the use of the inorganic SnO2 on the OSCs within this specific arrangement of structures using a drift-diffusion model: direct and inverted binary; direct ternary configurations of OSCs, specifically ITO/PEDOT: PSS/PM6:L8-BO/SnO2/Ag, ITO/SnO2/PM6:L8-BO/PEDOT: PSS/Ag; and FTO/PEDOT: PSS/PM6:D18:L8-BO/SnO2/Ag. These structures achieved power conversion efficiencies (PCE) of 18.34%, 18.37%, and 19.52%, respectively. The direct ternary device achieved an important Voc of 0.89 V and an FF of 82.3%, which is high in comparison with other simulated results in the literature. Our research focused on the role of SnO2 as an inorganic electron transport layer in enhancing efficiency in all three configurations. We also evaluated the properties of these structures by simulating external quantum efficiency (EQE), which results in a broadened absorption spectrum from 380 nm to 900 nm for both binary and ternary devices. Furthermore, we measured the spectral distribution of absorbed photons, and photo-charge extraction by linearly increasing voltage (photo-CELIV) to assess charge extraction and generation rates as well as charge mobility. These measurements help establish a robust model for practical application.

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Simulation and Comparison of the Photovoltaic Performance of Conventional and Inverted Organic Solar Cells with SnO2 as Electron Transport Layers

Boudia,

Wang,

Zhao

2024

Energies

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Optimization of the Active Layer Thickness for Inverted Ternary Organic Solar Cells Achieves 20% Efficiency with Simulation

Boudia,

Wang,

Zhao

2024

Sustainability

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Energy harvesting from cleaner sources and preserving the environment from dangerous gasses are presently the key priorities globally to maintain sustainable development. In this context, photovoltaic technology plays a vital role in generating energy from ternary organic solar cells. Ternary organic solar cells display significant potential for achieving outstanding photovoltaic performance compared to binary structures. Over the past few years, significant endeavors to develop novel organic materials have led to a consistent rise in efficiency, surpassing 19% for single-junction devices. In our study, we simulated an inverted ternary organic solar cell (TOSC) structure employing the one-dimensional optical and drift diffusion model and using “Oghma-Nano 8.0.034” software by optimizing the active blend thickness at 80 nm within the structure of ITO/SnO2/PM6:D18:L8-BO/PEDOT:PSS/Ag. We simulated different performance parameters such as EQE, Photo-CELIV, PCE, Jsc, Voc, and FF with different active layer thicknesses ranging from 50 to 200 nm to discover the behavior of the device in terms of efficiency parameters. Furthermore, the structure attained a PCE of 20% for an active layer thickness of 80 nm within a Jsc of 27.2 mA cm−2, a Voc of 0.89 V, and an FF of 82.3%. This approach can potentially be valuable in constructing a highly effective TOSC model in the laboratory.

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Characteristics and performance of organic photovoltaic cells having the active layer fabricated by ternary organic semiconducting materials

Cited by 2 publications

References 9 publications

Simulation and Comparison of the Photovoltaic Performance of Conventional and Inverted Organic Solar Cells with SnO2 as Electron Transport Layers

Simulation and Comparison of the Photovoltaic Performance of Conventional and Inverted Organic Solar Cells with SnO2 as Electron Transport Layers

Optimization of the Active Layer Thickness for Inverted Ternary Organic Solar Cells Achieves 20% Efficiency with Simulation

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