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Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures

Embedding nanostructures in organic solar cells (OSCs) is a well-known method to improve the absorption efficiency of the device by introducing the plasma resonance and scattering effects without increasing the active layer thickness. The introduction of nanostructures imposes greater demands on the...

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Autores principales: Zhao, Xuenan, Gu, Honggang, Chen, Linya, Liu, Shiyuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8704669/
https://www.ncbi.nlm.nih.gov/pubmed/34947537
http://dx.doi.org/10.3390/nano11123187
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author Zhao, Xuenan
Gu, Honggang
Chen, Linya
Liu, Shiyuan
author_facet Zhao, Xuenan
Gu, Honggang
Chen, Linya
Liu, Shiyuan
author_sort Zhao, Xuenan
collection PubMed
description Embedding nanostructures in organic solar cells (OSCs) is a well-known method to improve the absorption efficiency of the device by introducing the plasma resonance and scattering effects without increasing the active layer thickness. The introduction of nanostructures imposes greater demands on the optical analysis method for OSCs. In this paper, the generalized rigorous coupled-wave analysis (GRCWA) is presented to analyze and optimize the performance of coherent-incoherent hybrid organic solar cells (OSCs) with nanostructures. Considering the multiple reflections of light scattered within the glass substrate by the device, the correction vector g is derived, then the modified expressions for the field and absorption distribution in OSCs are provided. The proposed method is validated by comparing the simulated results of various structures with results obtained by the generalized transfer matrix method (GTMM) and the “equispaced thickness method” (ETM). The results demonstrate that the proposed method can reduce the number of simulations by at least half compared to the ETM while maintaining accuracy. With the proposed method, we discussed the device performance depending on the geometrical parameters of nanostructures, and the optimization and analysis are accomplished for single and tandem OSCs. After optimization based on the proposed method, the performance of OSCs are significantly improved, which further demonstrates the practicality of the method.
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spelling pubmed-87046692021-12-25 Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures Zhao, Xuenan Gu, Honggang Chen, Linya Liu, Shiyuan Nanomaterials (Basel) Article Embedding nanostructures in organic solar cells (OSCs) is a well-known method to improve the absorption efficiency of the device by introducing the plasma resonance and scattering effects without increasing the active layer thickness. The introduction of nanostructures imposes greater demands on the optical analysis method for OSCs. In this paper, the generalized rigorous coupled-wave analysis (GRCWA) is presented to analyze and optimize the performance of coherent-incoherent hybrid organic solar cells (OSCs) with nanostructures. Considering the multiple reflections of light scattered within the glass substrate by the device, the correction vector g is derived, then the modified expressions for the field and absorption distribution in OSCs are provided. The proposed method is validated by comparing the simulated results of various structures with results obtained by the generalized transfer matrix method (GTMM) and the “equispaced thickness method” (ETM). The results demonstrate that the proposed method can reduce the number of simulations by at least half compared to the ETM while maintaining accuracy. With the proposed method, we discussed the device performance depending on the geometrical parameters of nanostructures, and the optimization and analysis are accomplished for single and tandem OSCs. After optimization based on the proposed method, the performance of OSCs are significantly improved, which further demonstrates the practicality of the method. MDPI 2021-11-24 /pmc/articles/PMC8704669/ /pubmed/34947537 http://dx.doi.org/10.3390/nano11123187 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhao, Xuenan
Gu, Honggang
Chen, Linya
Liu, Shiyuan
Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title_full Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title_fullStr Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title_full_unstemmed Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title_short Optical Model and Optimization for Coherent-Incoherent Hybrid Organic Solar Cells with Nanostructures
title_sort optical model and optimization for coherent-incoherent hybrid organic solar cells with nanostructures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8704669/
https://www.ncbi.nlm.nih.gov/pubmed/34947537
http://dx.doi.org/10.3390/nano11123187
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