Related Experiment Video
Updated: Jan 20, 2026

Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
Published on: May 28, 2016
Characterization of semiconductor photocatalysts
Liping Zhang1, Jingrun Ran, Shi-Zhang Qiao
1Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, USA. jaroniec@kent.edu.
This review details essential characterization methods for semiconductor photocatalysts. It covers chemical, physical, and band structure properties, aiding researchers in selecting appropriate techniques for materials analysis.
Area of Science:
- Materials Science
- Chemistry
- Physics
Background:
- Semiconductor photocatalysis is popular for diverse applications, driving the development of numerous photocatalysts.
- This necessitates a comprehensive understanding of various characterization techniques for these materials.
Purpose of the Study:
- To review and summarize key characterization methods for semiconductor photocatalysts.
- To aid materials chemists, physicists, and students in selecting appropriate analytical techniques.
Main Methods:
- Characterization of chemical composition (elemental, chemical state/structure).
- Assessment of physical properties (structure, crystallography, optical absorption, charge dynamics, defects, stability).
- Analysis of band structure (band gap, band edges, Fermi level).
Main Results:
- Detailed discussion of fundamentals and examples for each characterization method.
- A correlation chart linking semiconductor properties with characterization techniques.
- Outlook on future characterization needs.
Conclusions:
- Provides a guide for selecting suitable characterization methods for semiconductor photocatalysts.
- Facilitates deeper understanding and advancement in photocatalyst research and development.
More Related Videos
08:30A Complete Method for Evaluating the Performance of Photocatalysts for the Degradation of Antibiotics in Environmental Remediation
Published on: October 6, 2022
08:12Ohmic Contact Fabrication Using a Focused-ion Beam Technique and Electrical Characterization for Layer Semiconductor Nanostructures
Published on: December 5, 2015
Related Concept Videos
Semiconductors
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Types of Semiconductors
Metal-Semiconductor Junctions
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...
Band Theory
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...
The Periodic Table