Laminated Graphene Films for Flexible Transparent Thin Film Encapsulation

被引：81

作者：

Seo, Hong-Kyu ^{[1
]}

Park, Min-Ho ^{[1
]}

Kim, Young-Hoon ^{[1
]}

Kwon, Sung-Joo ^{[1
]}

Jeong, Su-Hun ^{[1
]}

Lee, Tae-Woo ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, Gyungbuk, South Korea

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 23期

基金：

新加坡国家研究基金会;

关键词：

graphene; flexible lamination encapsulation; polymer light emitting diodes (PLED); lifetime; water vapor transmission rate (WVTR); LIGHT-EMITTING DEVICES; ATOMIC LAYER DEPOSITION; GAS BARRIER FILMS; PERMEATION; PERFORMANCE; ELECTRODES; OXIDE; MEMBRANES; COATINGS; DIODES;

D O I：

10.1021/acsami.6b01639

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We introduce a simple, inexpensive, and large area flexible transparent lamination encapsulation method that uses graphene films with polydimethylsiloxane (PDMS) buffer on polyethylene terephthalate (PET) substrate. The number Of stacked graphene layers (n(G)) was increased from 2 to 6, and 6-layered graphene-encapsulation showed high impermeability to moisture and air. The graphene-encapsulated polymer light emitting diodes (PLEDs) had stable operating characteristics; and the operational lifetime of encapsulated PLEDs increased as nG increased. Calcium oxidation test data confirmed the improved impermeability of graphene-encapsulation with increased nG. As a practical application, we demonstrated large-area flexible organic light emitting diodes (FOLEDs) and transparent FOLEDs that were encapsulated by our polymer/graphene encapsillant.

引用

页码：14725 / 14731

页数：7

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