Abstract
In this chapter, vertical thin-film light-emitting diodes with integrated micro-mesh arrays are presented. By removing the sapphire substrate through laser lift-off, vertical current conduction becomes possible, improving current spreading capability and thus electrical properties. Compared with the as-grown device, laterally guided light is capable of escaping into free space through the etched micro-mesh, evidence of which is provided by confocal imaging. At high driving current, more pronounced enhancement is observed, attributed to low junction temperatures due to efficient heat conduction as verified by infrared thermometric imaging.
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Li, K.H. (2016). Optical and Thermal Analyses of Thin-Film Hexagonal Micro-Mesh Light-Emitting Diodes. In: Nanostructuring for Nitride Light-Emitting Diodes and Optical Cavities. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48609-2_6
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DOI: https://doi.org/10.1007/978-3-662-48609-2_6
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