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A New Method with Sandwiched Composite Films for Encapsulating Flexible OLEDs |
| LI Yang;WANG Li-Duo;DUAN Lian;QIU Yong |
| Key Laboratory of Organic Optoelectronics & Molecular Engineering of the Ministry of Education Department of Chemistry, Tsinghua University, Beijing 100084 |
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| Cite this article: |
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LI Yang, WANG Li-Duo, DUAN Lian et al 2005 Chin. Phys. Lett. 22 1522-1525 |
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Abstract We introduce a novel method for sandwiched-composite-film encapsulation that successfully extends the lifetime of flexible organic light-emitting diodes (FOLEDs). The encapsulation layers include two parts: one is a thin multilayer barrier coating, which is made up of two applications of alternating layers composed of a polymer layer (consisting of UV capable resins) and a ceramic layer (consisting of titanium nitride with excellent barrier performance), and the other is a thick polymer film of approximately 70μm in thickness fabricated by a doctor blade onto the thin encapsulation film described above. FOLEDs encapsulated by this novel method have a longer lifetime, and this lifetime is 74 times as much as the lifetime of unencapsulated ones.
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| Keywords:
78.60.Fi
73.61.Ph
81.05.Je
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Published: 01 June 2005
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| PACS: |
78.60.Fi
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(Electroluminescence)
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73.61.Ph
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(Polymers; organic compounds)
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81.05.Je
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(Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides))
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