Design of micro, flexible light-emitting diode arrays and fabrication of flexible electrodes
Design of micro, flexible light-emitting diode arrays and fabrication of flexible electrodes
复制标题
微型柔性发光二极管阵列的设计和柔性电极的制造
DOI:
10.1088/0022-3727/49/40/405108
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发表时间:
2016-09
期刊:
影响因子:
--
通讯作者:
吕金光
中科院分区:
文献类型:
--
作者:
梁中翥;梁静秋;秦余欣;吕金光
In this study, we design micro, flexible light-emitting diode (LED) array devices. Using theoretical calculations and finite element simulations, we analyze the deformation of the conventional single electrode bar. Through structure optimization, we obtain a three-dimensional (3D), chain-shaped electrode structure, which has a greater bending degree. The optimized electrodes not only have a bigger bend but can also be made to spin. When the supporting body is made of polydimethylsiloxane (PDMS), the maximum bending degree of the micro, flexible LED arrays (4 × 1 arrays) was approximately 230 µm; this was obtained using the finite element method. The device (4 × 1 arrays) can stretch to 15%. This paper describes the fabrication of micro, flexible LED arrays using microelectromechancial (MEMS) technology combined with electroplating technology. Specifically, the isolated grooves are made by dry etching which can isolate and protect the light-emitting units. A combination of MEMS technology and wet etching is used to fabricate the large size spacing.
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