Elucidating the effect of Ag interlayer formation on the intrinsic mechanical properties of free-standing ITO/Ag/ITO thin films

Oh, Seung Jin; Lee, Sang‐Min; Choi, Kyung Cheol; Kwon, Jeong Hyun; Kim, Taek‐Soo

doi:10.1039/d3tc01002c

Cited by 6 publications

(1 citation statement)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanical properties, including E , ε , and S , were measured using tensile tests on a water surface (TOW). 26–29 The ALD thin film can float on the water surface because of the high surface tension of water, which facilitates the freestanding state of the ALD thin film. Furthermore, the low viscosity of water enables thin films to slide without friction on the water surface and they can be handled easily.…”

Section: Introductionmentioning

confidence: 99%

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs

Lee¹,

Jeon²,

Oh³

et al. 2023

Mater. Horiz.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs

Lee¹,

Jeon²,

Oh³

et al. 2023

Mater. Horiz.

Self Cite

View full text Add to dashboard Cite

show abstract

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments

Jeon,

Lee,

Nam

et al. 2023

Adv Funct Materials

Self Cite

View full text Add to dashboard Cite

As transparent, flexible, and wearable organic electronics degrade under normal outdoor environmental conditions (e.g., water vapor, oxygen, and UV light) and extreme environments, including washing or rain, a customized encapsulation technology is required to improve device reliability. Herein, a simple process is presented for fabricating multifunctional hazy substrates (MFHSs) with excellent gas diffusion barrier (GDB), flexibility, UV reflectance, light scattering, and waterproof properties. First, a spiky polyethylene terephthalate (PET) surface is produced with 76.0% optical haze through ion‐beam treatment followed by the formation of a hydrophobic layer to achieve a waterproof effect (contact angle: 153.3°). Then, a multifunctional multibarrier film is fabricated based on a nano‐laminated distributed Bragg reflector and functional polymer on the functional PET substrate to serve as a GDB and UV filter. This multibarrier film has excellent mechanical and chemical stabilities, in addition to having a water vapor transmission rate of 10−6 g m−2 day−1 and UV transmittance of <3%. The so‐fabricated MFHS not only increases the device efficiency by 73% but also enables a highly flexible and environmentally stable organic light–emitting diode. The surface treatment and encapsulation technologies developed in this study are expected to increase the lifetime of organic devices and facilitate high outdoor usability.

show abstract

Highly Reliable and Ultra‐Flexible Wearable OLEDs Enabled by Environmentally and Mechanically Robust Hybrid Multibarrier Encapsulation Layers

Lee,

Son,

Lee

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Thin‐film encapsulation is a core technology that determines the reliability of next‐generation displays, including wearable and stretchable displays. However, the encapsulation technologies developed to date are highly vulnerable to mechanical stress and harsh hygrothermal environments. Therefore, the degradation of their original encapsulation performance (as determined by mechanical and environmental reliability tests) is a major limitation. This paper describes a novel inorganic/organic multibarrier encapsulation method based on structural and material design to overcome the reliability problems of freeform displays. The highly reliable mechanical properties of the encapsulation system are verified using the tensile‐testing‐on‐water method, which is the most reliable method for thin films with thicknesses of tens to hundreds of nanometers. The optimal encapsulation system developed herein achieves an unprecedented elongation of 2.8% in its freestanding form, surpassing the elastic limit of traditional inorganic materials, and maintains a notable elongation of 1.43% after being exposed to harsh environments for 30 h (85 °C and 85% relative humidity). The inorganic/organic hybrid encapsulation system designed through systematic analysis in this study is expected to increase the lifetime of devices and facilitate high outdoor usability in applying ultraflexible wearable organic light‐emitting diodes.

show abstract

Elucidating the effect of Ag interlayer formation on the intrinsic mechanical properties of free-standing ITO/Ag/ITO thin films

Abstract: The lack of characterization of the mechanical behavior of brittle indium tin oxide (ITO)-based electrodes has been a core issue for the development of advanced transparent and flexible electronics. In...

Cited by 6 publications

References 57 publications

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments

Highly Reliable and Ultra‐Flexible Wearable OLEDs Enabled by Environmentally and Mechanically Robust Hybrid Multibarrier Encapsulation Layers

Contact Info

Product

Resources

About

Elucidating the effect of Ag interlayer formation on the intrinsic mechanical properties of free-standing ITO/Ag/ITO thin films

Abstract: The lack of characterization of the mechanical behavior of brittle indium tin oxide (ITO)-based electrodes has been a core issue for the development of advanced transparent and flexible electronics. In...

Cited by 6 publications

References 57 publications

Study of mechanical degradation of freestanding ALD Al2O3 by a hygrothermal environment and a facile protective method for environmentally stable Al2O3: toward highly reliable wearable OLEDs

Study of mechanical degradation of freestanding ALD Al2O3 by a hygrothermal environment and a facile protective method for environmentally stable Al2O3: toward highly reliable wearable OLEDs

Highly Efficient and Reliable Organic Light–Emitting Diodes Enabled by a Multifunctional Hazy Substrate for Extreme Environments

Highly Reliable and Ultra‐Flexible Wearable OLEDs Enabled by Environmentally and Mechanically Robust Hybrid Multibarrier Encapsulation Layers

Contact Info

Product

Resources

About

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs

Study of mechanical degradation of freestanding ALD Al₂O₃ by a hygrothermal environment and a facile protective method for environmentally stable Al₂O₃: toward highly reliable wearable OLEDs