Transparent high-performance SiOxNy/SiOx barrier films for organic photovoltaic cells with high durability
- Authors
- Lim, Ju Won; Jin, Chang Kyu; Lim, Keun Yong; Lee, Yun Jae; Kim, Sung-Ryong; Choi, Byung-Il; Kim, Tae Whan; Kim, Dong Ha; Hwang, Do Kyung; Choi, Won Kook
- Issue Date
- Mar-2017
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Barrier film; Organic solar cell; Long term stability
- Citation
- NANO ENERGY, v.33, pp.12 - 20
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANO ENERGY
- Volume
- 33
- Start Page
- 12
- End Page
- 20
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2476
- DOI
- 10.1016/j.nanoen.2017.01.022
- ISSN
- 2211-2855
- 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 7.1x10 (5) g m (2) day (1). In OSCs comprising poly[4,8-bis[(2-ethylhexyl)oxy] benzo[1,2-b:4,5-bA]dithio-phene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno[3,4-b]-thiophenediyl] (PTB7) and [6,6]-phenyl-C(70)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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