Abstract

Semi-transparent quantum-dot light-emitting diodes (QLEDs) can open display applications in many areas, such as energy-saving, aircraft lighting, wallpaper technologies and medical devices. In this paper, the first semi-transparent inverted QLED was demonstrated by using red quantum-dot emissive layer (QD EML). Semi-transparent silver was used as a top electrode deposited by thermal evaporation. The maximum luminance of 10540 cd m−2 was achieved for the semi-transparent inverted QLEDs. The optimized QLED has a maximum transparency of ∼45% in the red-emission region.

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