Related Experiment Video
Updated: Jul 15, 2025
08:14
Atom Probe Tomography Analysis of Exsolved Mineral Phases
Published on: October 25, 2019
7.4K
Chemical Analysis for Alkali Ion-exchanged Glass Using Atom Probe Tomography
Se-Ho Kim1,2, Leigh T Stephenson1, Torsten Schwarz1
1Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung, Max-Planck-Straße 1, 40237 Düsseldorf, Germany.
Summary
Chemically strengthened glass for foldable displays is crucial, but its composition and compression layer remain unclear. Atom probe tomography (APT) offers sub-nanoscale analysis of alkali metals, providing a new method for imaging glass chemistry in mobile devices.
Area of Science:
- Materials Science
- Nanotechnology
- Analytical Chemistry
Background:
- Flexible ultrathin glass is a key alternative to rigid glass in foldable electronic displays.
- Understanding the compositional effects and compression layer characteristics of chemically strengthened glass is essential.
- Current analytical methods lack clarity on the spatially resolved chemistry and depth of tempered glass compression layers.
Purpose of the Study:
- To comparatively investigate the elemental distribution in non- and chemically tempered smartphone glass.
- To elucidate the compositional effects and compression layer properties of chemically strengthened glass.
- To evaluate atom probe tomography (APT) as a technique for analyzing glass chemistry in mobile applications.
Main Methods:
- Utilized X-ray spectroscopy techniques for elemental analysis.
- Employed atom probe tomography (APT) for sub-nanoscale investigation.
- Analyzed two representative smartphone glass samples: non-tempered and chemically tempered.
Main Results:
- APT enabled sub-nanoscale analysis of alkali metals (Li, Na, K, and Ca) in the glass samples.
- Detailed distribution of constituent elements was investigated.
- Spatially resolved chemistry and depth of the compression layer were examined.
Conclusions:
- Atom probe tomography (APT) is a viable alternative technique for imaging chemical distribution in glass for mobile applications.
- The study provides insights into the compositional effects and compression layer of chemically strengthened glass.
- This research contributes to the development of advanced materials for foldable displays.
Related Concept Videos
01:29Atomic Emission Spectroscopy: Lab
194
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
194
01:25Atomic Absorption Spectroscopy: Atomization Methods
559
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
559
01:21Atomic Absorption Spectroscopy: Lab
476
For AAS measurements, samples must be introduced as clear solutions, often requiring extensive preliminary treatment to dissolve materials like soils, animal tissues, and minerals. Common methods for sample preparation include treatment with hot mineral acids, wet ashing, combustion in closed containers, high-temperature ashing, or fusion with reagents.
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing...
476
03:46Qualitative Analysis
22.4K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
22.4K
01:25Atomic Absorption Spectroscopy: Interference
813
Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
813
01:23Atomic Spectroscopy: Absorption, Emission, and Fluorescence
1.1K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
1.1K