Self-cleaning and fully polymer-based super-moisture-resistant gas barrier coating films with 2D polymers for flexible electronic devices and packaging applications

被引：5

作者：

Mahmood, Sadiq ^{[1
,3
,4
]}

Ahamad, Nadeem ^{[2
]}

Kant, Chandra ^{[3
,4
]}

Khan, Amir ^{[2
]}

Wu, Pu-Wei ^{[2
]}

Jian, Wen-Bin ^{[5
]}

Chu, Chih Wei ^{[6
]}

Katiyar, Monica ^{[3
,4
]}

Lin, Hong-Cheu ^{[1
,2
,7
]}

机构：

[1] Natl Yang Ming Chiao Tung Univ, Int Coll Semicond Technol, Hsinchu 300, Taiwan

[2] Natl Yang Ming Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[3] Indian Inst Technol Kanpur, Mat Sci & Engn Dept, Kanpur, India

[4] Indian Inst Technol Kanpur, Natl Ctr Flexible Elect, Kanpur, India

[5] Natl Yang Ming Chiao Tung Univ, Dept Electrophys, Hsinchu 300, Taiwan

[6] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan

[7] Natl Yang Ming Chiao Tung Univ, Ctr Emergent Funct Matter Sci, Hsinchu 300, Taiwan

来源：

JOURNAL OF MATERIALS CHEMISTRY C | 2023年 / 11卷 / 45期

关键词：

LIGHT-EMITTING-DIODES; MECHANICAL-PROPERTIES; FUNCTIONAL DESIGN; OXYGEN BARRIER; HEAT-TRANSFER; TRANSPARENT; GRAPHENE; ENCAPSULATION; EFFICIENCY; ROBUST;

D O I：

10.1039/d3tc02538a

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this report, we developed fully polymer-based and completely solution-processed moisture-resistant gas-diffusion-barrier-films (GDBFs) by utilizing a 2D polymer (2DP), polydimethylsiloxane (PDMS) and self-healing elastomeric SB-PDMS (i.e., Schiff base-linked PDMS) films. Through alternate stacking of spray-coated 2DP and spin-coated PDMS on polyethylene terephthalate (PET) substrates, multiple assemblies of bi-layers (BL)n (where n = 1, 2, 3 or 4) have been designed. Self-healing elastomeric SB-PDMS was coated on the other side of the PET substrate to introduce self-cleaning and self-healing properties to the newly fabricated GDBFs. The low BET surface area of ca. 5.16 m2 g-1 indicated that the stacking of 2DP materials did not align the pores or rings within the molecule. Moreover, the XRD results of spray-coated 2DP films confirmed that the molecules of 2DP with high-layer crystallinities were oriented parallel to the substrate. The water vapor transmission rate (WVTR) value was improved from 1.4 g m-2 day-1 for PET to the optimum value of 8.5 x 10-4 g m-2 day-1 for SB-PDMS/PET/(BL)4 containing four bilayers of 2DP/PDMS films, which did not degrade even after 1000 bending cycles. Accordingly, we developed flexible GDBFs with excellent moisture barrier properties along with additional functionalities (such as self-cleaning) to enable roll-to-roll processing of large-area flexible thin films for flexible organic-electronic device applications. Through alternate stacking of spray-coated 2DP and spin-coated PDMS, bi-layers (BL)n assemblies have been designed. The WVTR value was improved from 1.4 g m-2 day-1 for PET to the optimum value of 9 x 10-4 g m-2 day-1 for PET/(BL)4.

引用

页码：15907 / 15917

页数：11