Transparent high-performance SiOxNy/SiOx barrier films for organic photovoltaic cells with high durability

Ju Won Lim; Chang Kyu Jin; Keun Yong Lim; Yun Jae Lee; Sung Ryong Kim; Byung Il Choi; Tae Whan Kim; Dong Ha Kim; Do Kyung Hwang; Won Kook Choi

doi:10.1016/j.nanoen.2017.01.022

Transparent high-performance SiO_xN_y/SiO_x barrier films for organic photovoltaic cells with high durability

Ju Won Lim, Chang Kyu Jin, Keun Yong Lim, Yun Jae Lee, Sung Ryong Kim, Byung Il Choi, Tae Whan Kim, Dong Ha Kim, Do Kyung Hwang, Won Kook Choi

Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

The science and technology of organic electronics have made consistent progress. However, the long-term stability of organic devices is a critical issue that remains to be resolved. Encapsulation is a straightforward and practical means to protect organic materials from oxygen or moisture and thus improve air stability. Here, we report a high-performance flexible inorganic SiN_x/SiO_xN_y hybrid barrier film for application in organic solar cells (OSCs). This hybrid barrier film shows average transmittance of 85.5% and a water-vapor transmission rate of 7.1×10^–5 g m⁻² day⁻¹. In OSCs comprising poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-bA]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7) and [6,6]-phenyl-C₇₀-butyric acid methyl ester (PC₇₀BM), which were encapsulated by the SiN_x/SiO_xN_y hybrid barrier film, the power-conversion efficiency remained above 86% of the initial value even after 2000 h of storage in air, which is comparable to that obtained for a device encapsulated by a glass lid.

Original language	English
Pages (from-to)	12-20
Number of pages	9
Journal	Nano Energy
Volume	33
DOIs	https://doi.org/10.1016/j.nanoen.2017.01.022
State	Published - 1 Mar 2017

Keywords

Barrier film
Long term stability
Organic solar cell

Access to Document

10.1016/j.nanoen.2017.01.022

Cite this

@article{e43d7af261fd466592769eb433c971f7,

title = "Transparent high-performance SiOxNy/SiOx barrier films for organic photovoltaic cells with high durability",

abstract = "The science and technology of organic electronics have made consistent progress. However, the long-term stability of organic devices is a critical issue that remains to be resolved. Encapsulation is a straightforward and practical means to protect organic materials from oxygen or moisture and thus improve air stability. Here, we report a high-performance flexible inorganic SiNx/SiOxNy hybrid barrier film for application in organic solar cells (OSCs). This hybrid barrier film shows average transmittance of 85.5% and a water-vapor transmission rate of 7.1×10–5 g m−2 day−1. In OSCs comprising poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-bA]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7) and [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM), which were encapsulated by the SiNx/SiOxNy hybrid barrier film, the power-conversion efficiency remained above 86% of the initial value even after 2000 h of storage in air, which is comparable to that obtained for a device encapsulated by a glass lid.",

keywords = "Barrier film, Long term stability, Organic solar cell",

author = "{Won Lim}, Ju and {Kyu Jin}, Chang and {Yong Lim}, Keun and {Jae Lee}, Yun and Kim, {Sung Ryong} and Choi, {Byung Il} and {Whan Kim}, Tae and {Ha Kim}, Dong and {Kyung Hwang}, Do and {Kook Choi}, Won",

note = "Funding Information: Acknowledgments. This work was done under partial support of CONACYT (Project grant 106013 and scholarship 214262). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = mar,

day = "1",

doi = "10.1016/j.nanoen.2017.01.022",

language = "English",

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AU - Won Lim, Ju

AU - Kyu Jin, Chang

AU - Yong Lim, Keun

AU - Jae Lee, Yun

AU - Kim, Sung Ryong

AU - Choi, Byung Il

AU - Whan Kim, Tae

AU - Ha Kim, Dong

AU - Kyung Hwang, Do

AU - Kook Choi, Won

PY - 2017/3/1

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N2 - The science and technology of organic electronics have made consistent progress. However, the long-term stability of organic devices is a critical issue that remains to be resolved. Encapsulation is a straightforward and practical means to protect organic materials from oxygen or moisture and thus improve air stability. Here, we report a high-performance flexible inorganic SiNx/SiOxNy hybrid barrier film for application in organic solar cells (OSCs). This hybrid barrier film shows average transmittance of 85.5% and a water-vapor transmission rate of 7.1×10–5 g m−2 day−1. In OSCs comprising poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-bA]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7) and [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM), which were encapsulated by the SiNx/SiOxNy hybrid barrier film, the power-conversion efficiency remained above 86% of the initial value even after 2000 h of storage in air, which is comparable to that obtained for a device encapsulated by a glass lid.

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KW - Barrier film

KW - Long term stability

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