Organic light-emitting diodes on shape memory polymer substrates for wearable electronics
Organic light-emitting diodes on shape memory polymer substrates for wearable electronics
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DOI：
10.1016/j.orgel.2015.06.029
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发表时间：
2015-10-01
影响因子：
3.2
通讯作者：
Kippelen, Bernard
中科院分区：
文献类型：
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作者：
Gaj, Michael P.;Wei, Andrew;Kippelen, Bernard
具有倒置顶部发射结构的绿色电致磷光有机发光二极管（OLED）在生物兼容形状记忆聚合物（SMP）基底上进行了演示，用于可穿戴电子应用。SMP基板的独特性能与OLED的发光性能的结合为新的应用铺平了道路，包括适形智能皮肤设备，微创生物医学设备和柔性照明/显示技术。在这项工作中，SMP被设计为在施加热刺激时表现出相当大的模量下降，从而允许器件在达到其玻璃化转变温度时弯曲并符合新的形状。使用1，3，5-三烯丙基-1，3，5-三嗪-2，4，6（1H，3 H，5 H）-三酮（TATATO）、正丙烷三（3-巯基丙酸酯）（TMTMP）和三环[5.2.1.0（2，6）]癸烷二甲醇二丙烯酸酯（TCMDA）合成这些SMP底物，并且如使用动态力学分析（DMA）所测量的，这些SMP底物显示出43 ℃的低玻璃化转变温度。在这些基板上制造的OLED表现出高性能，在1000 cd/m2的亮度下测量的最大效率为33 cd/A，峰值亮度超过30，000 cd/m2。(C)2015 Elsevier B. V.版权所有。
Green electrophosphorescent organic light-emitting diodes (OLEDs) with inverted top-emitting structures are demonstrated on bio-compatible shape memory polymer (SMP) substrates for wearable electronic applications. The combination of the unique properties of SMP substrates with the light-emitting properties of OLEDs pave to the way for new applications, including conformable smart skin devices, minimally invasive biomedical devices, and flexible lighting/display technologies. In this work, SMPs were designed to exhibit a considerable drop in modulus when a thermal stimulus is applied, allowing the devices to bend and conform to new shapes when its glass transition temperature is reached. These SMP substrates were synthesized using 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TATATO), trimethylolpropane tris(3-mercaptopropionate) (TMTMP), and tricyclo[5.2.1.0(2,6)] decanedimethanol diacrylate (TCMDA), and show a low glass transition temperature of 43 degrees C, as measured using dynamic mechanical analysis (DMA). The OLEDs fabricated on these substrates exhibit high performance with a maximum efficacy of 33 cd/A measured at a luminance of 1000 cd/m(2), and a peak luminance of over 30,000 cd/m(2). (C) 2015 Elsevier B.V. All rights reserved.