Colloidal Control of Branching in Metal Chalcogenide Semiconductor Nanostructures

Faris Horani, Kusha Sharma, Azhar Abu-Hariri, Efrat Lifshitz

Research output: Contribution to journalReview articlepeer-review

Abstract

Colloidal syntheses of metal chalcogenides yield nanostructures of various 1D, 2D, and 3D nanocrystals (NCs), including branched nanostructures (BNSs) of nanoflowers, tetrapods, octopods, nanourchins, and more. Efforts are continuously being made to understand the branching mechanism in colloidally prepared metal chalcogenides for tailor-making them into various morphologies for dedicated applications in solar cells, light-emitting diodes, stress sensor devices, and near-infrared photodetectors. The vital role of precursors and ligands has widely been recognized in directing nanocrystal morphology during the colloidal synthesis of metal chalcogenide nanostructures. Moreover, a few basic branching mechanisms in nanocrystals have also been derived from decades-long observations of branching in NCs. This Perspective (a) accounts for the mediation of branching in In2S3, PbS, MoSe2, WSe2, and WS2; (b) analyzes the underlying mechanisms; and (c) gives a future perspective toward better controlling the BNSs’ morphologies and their impact on applications.

Original languageEnglish
Pages (from-to)3794-3804
Number of pages11
JournalJournal of Physical Chemistry Letters
Volume14
Issue number16
DOIs
StatePublished - 27 Apr 2023
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society

Funding

This work was supported by the Deutsch–Israel Program (DIP, Project No. NA1223/2-1), the Israel Science Foundation (ISF, Project No. 2528/19), and the Binational Science Foundation – NSF (Project 2017/637). The authors thank Dr. Adam K. Budniak (Department of Materials Science and Engineering, National University of Singapore) for his contribution to our previously published work on PbS nanostars. This work was supported by the Deutsch-Israel Program (DIP, Project No. NA1223/2-1), the Israel Science Foundation (ISF, Project No. 2528/19), and the Binational Science Foundation - NSF (Project 2017/637). The authors thank Dr. Adam K. Budniak (Department of Materials Science and Engineering, National University of Singapore) for his contribution to our previously published work on PbS nanostars.(22)

FundersFunder number
Department of Materials Science and Engineering
Deutsch-Israel Program
Deutsch-Israel ProgramNA1223/2-1
National Science Foundation2017/637
National University of Singapore
United States-Israel Binational Science Foundation
Israel Science Foundation2528/19

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