Numerous studies have aimed to improve the mechanical flexibility of thin-film encapsulation,a key obstacle in commercializing wearable organic light-emitting diodes(OLEDs).This study develops a silbione-blended organ...Numerous studies have aimed to improve the mechanical flexibility of thin-film encapsulation,a key obstacle in commercializing wearable organic light-emitting diodes(OLEDs).This study develops a silbione-blended organic/inorganic hybrid epoxy polymer(hybrimer)with high toughness as an organic barrier to enhance the flexibility of organic-inorganic multi-barriers.The optimal silbioneblended hybrimer(SBH)films exhibit superior mechanical properties,including increased elongation and tensile strength,compared to the hybrimer.The 3.5-dyad SBH-based encapsulation achieves a water vapor transmission rate of 7.83×10^(-6)g/m^(2)/day and 9.45×10^(-5)g/m^(2)/day before and after bending at a strain of 2%,respectively.In addition,the SBH barrier effectively protects the inorganic barrier by forming a robust aluminate phase at the interface between the inorganic and organic barrier,even under harsh conditions of 85℃/85%relative humidity,demonstrating its potential for wearable applications.As a result,SBH-based encapsulations offer mechanical and environmental stability,making them ideal for wearable OLEDs.展开更多
基金supported by the Technology Innovation Program(20017569Development of substrate materials that can be stretched more than50%for stretchable displays&20018379+2 种基金Development of high-reliability lightemitting fiber-based woven wearable displays)funded by the Ministry of Trade,Industry&Energy(MOTIE,Korea)supported by the BK21 FOUR(Connected AI Education&Research Program for Industry and Society Innovation,KAIST EE,No.4120200113769)supported by the Technology Development Program(RS-2023-00270443 and RS-2024-00469790)funded by the Ministry of SMEs and Startups(MSS,Korea)。
文摘Numerous studies have aimed to improve the mechanical flexibility of thin-film encapsulation,a key obstacle in commercializing wearable organic light-emitting diodes(OLEDs).This study develops a silbione-blended organic/inorganic hybrid epoxy polymer(hybrimer)with high toughness as an organic barrier to enhance the flexibility of organic-inorganic multi-barriers.The optimal silbioneblended hybrimer(SBH)films exhibit superior mechanical properties,including increased elongation and tensile strength,compared to the hybrimer.The 3.5-dyad SBH-based encapsulation achieves a water vapor transmission rate of 7.83×10^(-6)g/m^(2)/day and 9.45×10^(-5)g/m^(2)/day before and after bending at a strain of 2%,respectively.In addition,the SBH barrier effectively protects the inorganic barrier by forming a robust aluminate phase at the interface between the inorganic and organic barrier,even under harsh conditions of 85℃/85%relative humidity,demonstrating its potential for wearable applications.As a result,SBH-based encapsulations offer mechanical and environmental stability,making them ideal for wearable OLEDs.
