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Updated: May 13, 2026
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Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
Light-Driven On-Surface Synthesis: Mechanisms, Strategies, and Architectures.
Yinghui Fu1, Ying Han1, Jiuan Gong1
1School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.
Nanomaterials (Basel, Switzerland)
|May 12, 2026
Summary
Light-driven on-surface photochemistry offers precise control for creating carbon nanomaterials. This review explores light-induced reactions, focusing on molecular pathways and strategies to enhance selectivity and efficiency for advanced material design.
Area of Science:
- Surface science and nanotechnology
- Photochemistry and materials synthesis
Background:
- Molecular on-surface photochemistry is a novel method for fabricating carbon nanomaterials, distinct from thermal methods.
- Challenges exist in controlling photoreaction selectivity and efficiency due to complex interactions.
Purpose of the Study:
- To review recent advances in light-driven on-surface synthesis under ultra-high vacuum.
- To focus on molecular photoexcitation pathways observable via scanning tunneling microscopy and spectroscopy (STM and STS).
Main Methods:
- Overview of light-driven reactions: dehalogenative C-C coupling, cycloadditions ([2+2], [4+4]), and photoisomerization.
- Utilizing scanning tunneling microscopy and spectroscopy (STM and STS) to probe photoexcitation pathways.
- Examining strategies for reactivity control, including self-assembly, surface passivation, and light parameter tuning.
Main Results:
- Demonstrated successful case studies of light-driven on-surface reactions.
- Highlighted strategies for tuning reactivity, such as molecular pre-organization and surface modification.
- Showcased the potential for designing functional low-dimensional architectures.
Conclusions:
- Advances in on-surface photochemistry deepen the fundamental understanding of light-matter interactions.
- This field inspires the creation of novel functional nanomaterials and light-responsive devices.
