ArticleScience advances2022
Facet-selective etching trajectories of individual semiconductor nanocrystals.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Graphene-Based Liquid Cell Designs for In Situ Liquid-Phase Transmission Electron Microscopy: Recent Developments and Perspectives.Small science · 2025Review
- Improved Facet and Edge Passivation in Near-Infrared III-V Colloidal Quantum Dot Photodetectors.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Filming evolution dynamics of Hg nanodroplets mediated at solid-gas and solid-liquid interfaces by in-situ TEM.Nature communications · 2025Article
- The Influence of Ionizing Radiation on Quantification for In Situ and Operando Liquid-Phase Electron Microscopy.Advanced materials (Deerfield Beach, Fla.) · 2025Review
- Time-resolved Brownian tomography of single nanocrystals in liquid during oxidative etching.Nature communications · 2025Article
- Unveiling Corrosion Pathways of Sn Nanocrystals through High-Resolution Liquid Cell Electron Microscopy.Nano letters · 2024Article
- Structural Diversity Design, Four Nucleation Methods Growth and Mechanism of 3D Hollow Box TiOACS omega · 2024Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The size and shape of semiconductor nanocrystals govern their optical and electronic properties. Liquid cell transmission electron microscopy (LCTEM) is an emerging tool that can directly visualize nanoscale chemical transformations and therefore inform the precise synthesis of nanostructures with desired functions. However, it remains difficult to controllably investigate the reactions of semiconductor nanocrystals with LCTEM, because of the highly reactive environment formed by radiolysis of liquid. Here, we harness the radiolysis processes and report the single-particle etching trajectories of prototypical semiconductor nanomaterials with well-defined crystalline facets. Lead selenide nanocubes represent an isotropic structure that retains the cubic shape during etching via a layer-by-layer mechanism. The anisotropic arrow-shaped cadmium selenide nanorods have polar facets terminated by either cadmium or selenium atoms, and the transformation trajectory is driven by etching the selenium-terminated facets. LCTEM trajectories reveal how nanoscale shape transformations of semiconductors are governed by the reactivity of specific facets in liquid environments.
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Registered trials
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