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Related Experiment Video

Updated: Feb 4, 2026

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets

Published on: August 18, 2023

Communication: Nickel hydroxide as an exceptional deviation from the quantum size effect.

Michael Nagli¹, Maytal Caspary Toroker¹

¹Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa 3200003, Israel.

The Journal of Chemical Physics

|October 15, 2018

Summary

This summary is machine-generated.

Monolayers of nickel hydroxide defy the quantum size effect, exhibiting smaller bandgaps than bulk materials. This unexpected behavior is attributed to unique surface states influencing electronic properties.

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Area of Science:

Solid State Physics
Materials Science
Quantum Mechanics

Background:

The quantum size effect dictates that reducing material size increases bandgap due to quantum confinement.
This principle is fundamental in understanding semiconductor and solid-state properties.

Purpose of the Study:

To investigate the electronic properties of nickel hydroxide monolayers.
To identify exceptions to the established quantum size effect in nanoscale materials.

Main Methods:

Utilized state-of-the-art first-principles calculations.
Analyzed the electronic band structure of nickel hydroxide at the monolayer and bulk levels.

Main Results:

Nickel hydroxide monolayers exhibit smaller bandgaps compared to their bulk counterparts.
Observed surface states within the bandgap region of monolayers are responsible for this deviation.

Conclusions:

Nickel hydroxide monolayers present a novel exception to the quantum size effect.
Surface states play a critical role in determining the electronic properties of low-dimensional materials.