Abstract
AbstractPerovskite shows great potential in lighting and display owing to its advantages of low cost, high efficiency, and whole visible light tunability. However, how to realize high‐efficiency white perovskite light‐emitting diodes (WPeLEDs) still faces challenges such as the stability of devices and the energy regulation between different emission centers. In recent years, some organic molecules are introduced into the perovskite system because of their role in stabilizing perovskite crystals and enhancing photoelectric properties. In this review, the strategy of perovskite‐organic combination and coupling emission are emphasized, hoping to promote the development of high‐efficiency WPeLEDs. First, the research status of perovskite‐organic coupling WLEDs (POC‐WLEDs) is summarized in detail. Then, the development direction and possibility of POC‐WLEDs are proposed by combining them with some recent reports on POC methods. Finally, an outlook on POC‐WLEDs is proposed. It is a considerable strategy to introduce organic luminescent molecules into perovskite systems as ligands or A‐site organic cations for coupling emission with perovskite. In addition, the technologies of the organic polymer matrix, interfacial exciplex, and organic crosslinking are noteworthy exploration directions. They will promote the development of POC‐WLEDs in improving the stability of perovskite electroluminescence and regulating the energy transfer efficiency between perovskite/organic‐molecule emitting centers.
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