期刊
NANO LETTERS
卷 11, 期 9, 页码 3881-3886出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl202000u
关键词
Microscale LEDs; graphene; transparent; stretchable interconnects
类别
资金
- National Security Science and Engineering Faculty
- Office of Naval Research
- National Science Foundation [NSF CMMI 07-49028, OISE-1043143]
- semiconductor division of Samsung Electronics
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [824129] Funding Source: National Science Foundation
This paper describes the fabrication and design principles for using transparent graphene interconnects in stretchable arrays of microscale inorganic light emitting diodes (LEDs) on rubber substrates. We demonstrate several appealing properties of graphene for this purpose, including its ability to spontaneously conform to significant surface topography, in a manner that yields effective contacts even to deep, recessed device regions. Mechanics modeling reveals the fundamental aspects of this process, as well as the use of the same layers of graphene for interconnects designed to accommodate strains of 100% or more, in a completely reversible fashion. These attributes are compatible with conventional thin film processing and can yield high-performance devices in transparent layouts. Graphene interconnects possess attractive features for both existing and emerging applications of LEDs in information display, biomedical systems, and other environments.
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