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Updated: Mar 11, 2026
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Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−
Published on: July 27, 2018
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Ambient pressure photoelectron spectroscopy: Practical considerations and experimental frontiers
Lena Trotochaud1, Ashley R Head1, Osman Karslıoğlu1
1Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
Summary
Ambient pressure X-ray photoelectron spectroscopy (APXPS) enables in situ study of chemical reactions. This review covers APXPS applications on various interfaces, highlighting techniques, challenges, and future directions for condensed matter research.
Area of Science:
- Surface Science
- Materials Science
- Analytical Chemistry
Background:
- Ambient pressure X-ray photoelectron spectroscopy (APXPS) allows chemical analysis under realistic atmospheric conditions.
- Traditional methods require ultra-high vacuum, limiting in situ and operando studies.
- APXPS bridges the gap between surface science techniques and real-world chemical environments.
Purpose of the Study:
- To review exemplary APXPS experiments across diverse condensed matter interfaces.
- To critically evaluate the experimental techniques, challenges, and limitations of APXPS.
- To discuss the current experimental frontiers and future potential of APXPS.
Main Methods:
- Focus on APXPS applications for solid/vapor, liquid/vapor, and liquid/solid interfaces.
- Examines 2D materials like graphene and hexagonal boron nitride on metal substrates.
- Considers intercalated gas molecules and their impact on interfacial properties.
Main Results:
- Demonstrates APXPS's power for in situ and operando investigations of chemical reactions.
- Highlights successful APXPS studies on various interfaces, including novel liquid-based systems.
- Identifies persistent challenges and limitations in current APXPS methodologies.
Conclusions:
- APXPS is a versatile technique for probing chemical reactions at interfaces under ambient conditions.
- Further development is needed to overcome existing limitations and expand APXPS capabilities.
- Future research will likely focus on refining techniques and exploring new interfacial systems with APXPS.
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