Concepedia

Precursor reaction kinetics control compositional grading and size of CdSe<sub>1−x</sub>S<sub>x</sub> nanocrystal heterostructures

Leslie S. Hamachi, Haoran Yang, Ilan Jen‐La Plante, Natalie Saenz, Kevin Qian, Michael P. Campos, Gregory T. Cleveland, Iva Rreza, Aisha Oza, Willem Walravens,

Chemical Science · 2019 · 38 citations · 64 references

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Concepts

Abstract

= 2.4) display two longitudinal optical phonon modes with composition dependent frequencies characteristic of the alloy microstructure. When one precursor is more reactive than the other, its conversion reactivity and mole fraction control the number of nuclei, the final nanocrystal size at full conversion, and the elemental composition. The utility of controlled reactivity for adjusting alloy microstructure is discussed.

References

64

Solution-processed, high-performance light-emitting diodes based on quantum dots

Xingliang Dai, Zhenxing Zhang, Yizheng Jin et al. · Nature · 2014 · 2.7K citations

, , +14

Large-Scale Synthesis of Nearly Monodisperse CdSe/CdS Core/Shell Nanocrystals Using Air-Stable Reagents via Successive Ion Layer Adsorption and Reaction

J. Jack Li, Y. Andrew Wang, Wenzhuo Guo et al. · Journal of the American Chemical Society · 2003 · 1.5K citations

, , +17

Compact high-quality CdSe–CdS core–shell nanocrystals with narrow emission linewidths and suppressed blinking

Ou Chen, Jing Zhao, Vikash P. Chauhan et al. · Nature Materials · 2013 · 1.4K citations

, , +15

Formation of High-Quality CdS and Other II-VI Semiconductor Nanocrystals in Noncoordinating Solvents: Tunable Reactivity of Monomers

William W. Yu, Xiaogang Peng · Angewandte Chemie International Edition · 2002 · 1.3K citations

, , +16

“Giant” Multishell CdSe Nanocrystal Quantum Dots with Suppressed Blinking

Yongfen Chen, Javier Vela, Han Htoon et al. · Journal of the American Chemical Society · 2008 · 942 citations · Full text

, , +17