photoelectronics
/ˌfəʊtəʊɪlɛkˈtrɒnɪks/ /ˌfəʊtəʊɛlɛkˈtrɒnɪks/Physics and Electronics
noun
The branch of science and technology that deals with photoelectronic phenomena.
Origin
1940s; earliest use found in Chambers's Technical Dictionary. From photo- + electronics, after photoelectronic.