catalysed photochemical reaction

https://doi.org/10.1351/goldbook.14000
Enhancement (alteration) of efficiency of photochemical reactions upon direct excitation of photoactive reactants via an intermediate interaction of these reactants with certain compounds that act as catalysts (promoters) of the appropriate chemical transformations of the reactants.
Note: Sometimes this process can be identical with photocatalysis.
Source:
PAC, 2011, 83, 931. (Glossary of terms used in photocatalysis and radiation catalysis (IUPAC Recommendations 2011)) on page 944 [Terms] [Paper]