photoelectrochemical
/ˌfəʊtəʊɪˌlɛktrə(ʊ)ˈkɛmɪkl/Physics and Chemistry
adjective
Of, relating to, or designating an electrochemical cell or reaction in which the electrode potential or the current flowing depends upon the degree of illumination.
Origin
1940s; earliest use found in Chemical Review. From photo- + electrochemical.