fundamental absorption

of solid photocatalysts
synonym: intrinsic absorption
https://doi.org/10.1351/goldbook.14016
Absorption of ultraviolet, visible, or infrared radiation in semiconductors and insulators inducing optical transitions of electrons originating exclusively from the valence band to the conduction band to yield free electron-hole pairs and/or exciton absorption bands.
See: extrinsic absorption
Source:
PAC, 2011, 83, 931. (Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)) on page 954 [Terms] [Paper]
Citation: 'fundamental absorption' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.14016 RIS BibTex EndNote
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