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Updated: Sep 16, 2025

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction

A Method to Manipulate Surface Tension of a Liquid Metal via Surface Oxidation and Reduction

Published on: January 26, 2016

Tailoring optoelectronic properties of TMDs through atomic-scale solid-liquid interface engineering.

Jiale Lv¹, Dongliang Jia¹, Pei Yin¹

¹School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, People's Republic of China.

|July 10, 2025

Summary

This summary is machine-generated.

We studied electron transfer in transition metal dichalcogenides (MoS2, MoSe2, MoTe2) at water interfaces. Atomic-scale charge transfer and band gap narrowing were observed, enabling optical property tuning for optoelectronics.

Keywords:

electron transfer first-principles calculations optoelectronic properties solid–liquid interface work function

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Last Updated: Sep 16, 2025

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Patterning via Optical Saturable Transitions - Fabrication and Characterization

Patterning via Optical Saturable Transitions - Fabrication and Characterization

Published on: December 11, 2014

Area of Science:

Materials Science
Physical Chemistry
Surface Science

Background:

Transition metal dichalcogenides (TMDs) show potential in photoelectrochemical applications.
Understanding electron transfer at aqueous interfaces is crucial but challenging.

Purpose of the Study:

Investigate atomic-scale electron transfer dynamics of MoS2, MoSe2, and MoTe2 at water interfaces.
Elucidate the physical principles governing interfacial charge transfer.
Explore the impact on optical properties and potential for interface engineering.

Main Methods:

First-principles calculations were employed to simulate TMD-water interfaces.
Analysis included work functions, external pressure effects, and band structure.
Joint density of states and critical points were evaluated.

Main Results:

Interfacial charge transfer occurs between surface atoms and water molecules.
Directionality of charge transfer depends on work functions and water pressure.
Aqueous contact induces band gap narrowing via conduction band downshift.
New peaks emerge in optical response, broadening high-intensity regions.

Conclusions:

Established a theoretical framework for interfacial electron transfer in semiconductors.
Demonstrated atomic-scale modulation of optical properties through solid-liquid interface engineering.
Provides insights for designing next-generation optoelectronic devices.