Stable Submicron Aggregates of InP/ZnS Nanocrystals

IF 0.9 4区化学 Q4 CHEMISTRY, PHYSICAL

High Energy Chemistry Pub Date : 2023-12-23 DOI:10.1134/s0018143923080118

A. V. Gadomska, S. A. Tovstun, M. G. Spirin

引用次数: 0

Abstract

High-temperature colloidal synthesis was used to produce InP nanocrystals with a mean diameter of 2 nm covered with a thin ZnS shell and organic ligands ~1 nm in length. The addition of acetonitrile to a toluene solution of these nanoparticles led to the formation of aggregates with a hydrodynamic diameter of 0.2 μm. The aggregates were stable at acetonitrile/toluene ratios from 1/1 to at least 14/1. A close distance between nanocrystals in the aggregates enabled interparticle Förster resonance energy transfer. The addition of an excess of toluene to a solution of these aggregates promoted their disaggregation into individual InP/ZnS nanocrystals.

Abstract Image

查看原文本刊更多论文

稳定的 InP/ZnS 亚微米级纳米晶体聚集体

摘要利用高温胶体合成技术制备出平均直径为 2 纳米的 InP 纳米晶体，其表面覆盖着一层薄薄的 ZnS 壳和长度约为 1 纳米的有机配体。将乙腈加入这些纳米粒子的甲苯溶液中，可形成水动力直径为 0.2 μm 的聚集体。聚合体在乙腈/甲苯比率为 1/1 至至少 14/1 时都很稳定。聚合体中纳米晶体之间的距离很近，因此可以实现粒子间的佛斯特共振能量转移。在这些聚集体的溶液中加入过量甲苯可促进它们分解成单个的 InP/ZnS 纳米晶体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

High Energy Chemistry 化学-物理化学

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： High Energy Chemistry publishes original articles, reviews, and short communications on molecular and supramolecular photochemistry, photobiology, radiation chemistry, plasma chemistry, chemistry of nanosized systems, chemistry of new atoms, processes and materials for optical information systems and other areas of high energy chemistry. It publishes theoretical and experimental studies in all areas of high energy chemistry, such as the interaction of high-energy particles with matter, the nature and reactivity of short-lived species induced by the action of particle and electromagnetic radiation or hot atoms on substances in their gaseous and condensed states, and chemical processes initiated in organic and inorganic systems by high-energy radiation.