In situ SAXS probing the evolution of the precursors and onset of nucleation of ZnSe colloidal semiconductor quantum dots

Xiaoyu Hao; Meng Chen; LinXi Wang; Zhaopeng Cao; Yan Li; Shuo Han; Meng Zhang; Kui Yu; Jianrong Zeng

doi:10.1039/c9cc09274a

In situ SAXS probing the evolution of the precursors and onset of nucleation of ZnSe colloidal semiconductor quantum dots

Chem Commun (Camb). 2020 Feb 13;56(13):2031-2034. doi: 10.1039/c9cc09274a.

Authors

Xiaoyu Hao¹, Meng Chen, LinXi Wang, Zhaopeng Cao, Yan Li, Shuo Han, Meng Zhang, Kui Yu, Jianrong Zeng

Affiliation

¹ Institute of Atomic and Molecular Physics, Sichuan University, 610065, P. R. China. kuiyu@scu.edu.cn.

PMID: 31965120
DOI: 10.1039/c9cc09274a

Abstract

The whole evolution processes, from precursors to quantum dots (QDs), were in situ investigated by SAXS and UV-vis. Diphenylphosphine (HPPh2) accelerates the dissolution of zinc oleate lamellar mesophase in the presence of selenide tri-n-octylphosphine (SeTOP) at a low temperature of 40 °C via the equilibrium of SeTOP + HPPh2 ⇔ SePPh2H + TOP.