Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells

Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells

Organic solar cells (OSCs) are an attractive technique for next-generation renewable energy. However, the intrinsically unstable nature of the organic compounds involved is delaying their commercialization. Therefore, it is essential to improve the lifetime of OSCs significantly. Here, we investigat...

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Main Authors: Jaehoon Kim, Hyung-Jun Song, Changhee Lee
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Energies
Subjects:
organic solar cells
encapsulation
shelf lifetime
CYTOP
Online Access:https://www.mdpi.com/1996-1073/14/13/3993
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spelling doaj-dcf74016494f43df82dff69359dfc1ae2021-07-15T15:33:39ZengMDPI AGEnergies1996-10732021-07-01143993399310.3390/en14133993Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar CellsJaehoon Kim0Hyung-Jun Song1Changhee Lee2Department of Electrical and Computer Engineering, Seoul National University, Seoul 08826, KoreaDepartment of Safety Engineering, Seoul National University of Science and Technology, Seoul 01811, KoreaDepartment of Electrical and Computer Engineering, Seoul National University, Seoul 08826, KoreaOrganic solar cells (OSCs) are an attractive technique for next-generation renewable energy. However, the intrinsically unstable nature of the organic compounds involved is delaying their commercialization. Therefore, it is essential to improve the lifetime of OSCs significantly. Here, we investigated the effect of the hydrophobic cyclized transparent optical polymer (CYTOP) as a solution-processable encapsulation layer based on shelf lifetime measurement, current–voltage characteristics, and impedance spectroscopy. We found that CYTOP utilization greatly enhanced OSCs’ shelf lifetime, maintaining 96% of initial performance when unencapsulated devices decreased to 82%. Furthermore, based on the dark current characteristics, ideality factor (n), and Cole–Cole plots, the CYTOP encapsulation is revealed to effectively inhibit unfavorable changes of parasitic resistive components and trap-assisted recombination. These findings provide an inclusive perspective on the shelf lifetime issue and commercialization of the OSCs.https://www.mdpi.com/1996-1073/14/13/3993organic solar cellsencapsulationshelf lifetimeCYTOP
collection DOAJ
language English
format Article
sources DOAJ
author Jaehoon Kim
Hyung-Jun Song
Changhee Lee
spellingShingle Jaehoon Kim
Hyung-Jun Song
Changhee Lee
Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
Energies
organic solar cells
encapsulation
shelf lifetime
CYTOP
author_facet Jaehoon Kim
Hyung-Jun Song
Changhee Lee
author_sort Jaehoon Kim
title Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
title_short Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
title_full Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
title_fullStr Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
title_full_unstemmed Study on the Enhanced Shelf Lifetime of CYTOP-Encapsulated Organic Solar Cells
title_sort study on the enhanced shelf lifetime of cytop-encapsulated organic solar cells
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2021-07-01
description Organic solar cells (OSCs) are an attractive technique for next-generation renewable energy. However, the intrinsically unstable nature of the organic compounds involved is delaying their commercialization. Therefore, it is essential to improve the lifetime of OSCs significantly. Here, we investigated the effect of the hydrophobic cyclized transparent optical polymer (CYTOP) as a solution-processable encapsulation layer based on shelf lifetime measurement, current–voltage characteristics, and impedance spectroscopy. We found that CYTOP utilization greatly enhanced OSCs’ shelf lifetime, maintaining 96% of initial performance when unencapsulated devices decreased to 82%. Furthermore, based on the dark current characteristics, ideality factor (n), and Cole–Cole plots, the CYTOP encapsulation is revealed to effectively inhibit unfavorable changes of parasitic resistive components and trap-assisted recombination. These findings provide an inclusive perspective on the shelf lifetime issue and commercialization of the OSCs.
topic organic solar cells
encapsulation
shelf lifetime
CYTOP
url https://www.mdpi.com/1996-1073/14/13/3993
work_keys_str_mv AT jaehoonkim studyontheenhancedshelflifetimeofcytopencapsulatedorganicsolarcells
AT hyungjunsong studyontheenhancedshelflifetimeofcytopencapsulatedorganicsolarcells
AT changheelee studyontheenhancedshelflifetimeofcytopencapsulatedorganicsolarcells
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