Issue 45, 2020

Synthesis of small Ag–Sb–Te nanocrystals with composition control

Abstract

Ternary telluride nanocrystals have gained increasing interest as materials for thermoelectric, optoelectronic, and phase-change memory applications. Synthetic approaches for colloidal multicomponent tellurides however remain sparse. Here, we report a convenient, amide-promoted synthesis for Ag–Sb–Te nanocrystals with small sizes and narrow size distributions (e.g., nanocrystal diameters of 3.5 ± 0.8 nm). We focus on achieving composition control for Ag–Sb–Te nanocrystals by adjusting the ratio of cationic precursors and find a broad solid solution range for AgxSb1−xTe1.5−x nanocrystals (x is from 0.3 and 0.6), which extends beyond that measured in Ag–Sb–Te thin films. The ability to produce size- and composition-controlled Ag–Sb–Te nanocrystals is a first step in achieving bottom-up assembled Ag–Sb–Te semiconductors for device applications.

Graphical abstract: Synthesis of small Ag–Sb–Te nanocrystals with composition control

Supplementary files

Article information

Article type
Communication
Submitted
19 feb 2020
Accepted
07 okt 2020
First published
14 okt 2020
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. C, 2020,8, 15985-15989

Synthesis of small Ag–Sb–Te nanocrystals with composition control

A. Moser, O. Yarema, M. Yarema and V. Wood, J. Mater. Chem. C, 2020, 8, 15985 DOI: 10.1039/D0TC00880J

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