Colloidal semiconductor nanocrystals (SCNCs) or, more broadly, colloidal quantum nanostructures constitute outstanding model systems for investigating size and dimensionality effects. Their nanoscale dimensions lead to quantum confinement effects that enable tuning of their optical and electronic properties. Thus, emission color control with narrow photoluminescence spectra, wide absorbance spectra, and outstanding photostability, combined with their chemical processability through control of their surface chemistry leads to the emergence of SCNCs as outstanding materials for present and next-generation displays. In this Review, we present the fundamental chemical and physical properties of SCNCs, followed by a description of the advantages of different colloidal quantum nanostructures for display applications. The open challenges with respect to their optical activity are addressed. Both photoluminescent and electroluminescent display scenarios utilizing SCNCs are described.
Bibliographical noteFunding Information:
U.B. wishes to thank the generations of students, postdoctoral researchers, and co-workers who worked with him over the years on research into SCNCs, and the employees of Qlight Nanotech who participated in the development of SCNCs for display applications. This project received funding in part from the European Research Council (ERC) under the European Union≫s Horizon 2020 research and innovation programme (grant agreement No ), as well as from the Israel Science Foundation (ISF, Grant No. 811/13). U.B. holds the Alfred & Erica Larisch Memorial Chair.
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- quantum confinement
- quantum dots