Standard Article

Ultraviolet and Visible Absorption Spectroscopy

Optical Imaging and Spectroscopy

  1. Brian M. Tissue

Published Online: 18 MAY 2012

DOI: 10.1002/0471266965.com059.pub2

Characterization of Materials

Characterization of Materials

How to Cite

Tissue, B. M. 2012. Ultraviolet and Visible Absorption Spectroscopy. Characterization of Materials. 1–13.

Author Information

  1. Virginia Polytechnic Institute and State University, Department of Chemistry, Blacksburg, VA, USA

Publication History

  1. Published Online: 18 MAY 2012

Abstract

This article describes the principles and applications of absorption spectroscopy in the ultraviolet (UV), visible (Vis), and near-infrared (NIR) regions of the electromagnetic spectrum. UV/Vis spectroscopy is used for (1) quantitative measurements of material components and precursors and (2) characterization of the optical and electronic properties of a material. Most measurements can be made with commercially available spectrophotometers and sampling accessories.

Keywords:

  • absorbance;
  • transmittance;
  • reflectance;
  • spectrophotometer;
  • electronic transition;
  • band gap