Abstract
AbstractI‐III‐VI semiconductor nanocrystals (NCs) have emerged as promising candidates in quantum‐dot light‐emitting diodes (QLEDs) due to their environmental‐benign nature and capability for large‐scale tunable emission as well as straightforward synthesis. However, the photoluminescence (PL) emission of I–III–VI type NCs, as reported in numerous studies, exhibits a broader full width at half maximum (FWHM), adversely affecting their color purity. This review delineates the advancements in the development of narrow‐bandwidth I–III–VI NCs, focusing on their synthesis strategies, luminescence mechanisms, and applications in QLEDs. It concludes with a discussion on the challenges confronting narrow‐bandwidth I–III–VI‐based QLEDs and outlines potential strategies for improving device performance.
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