photoconduction vs photoconductivity

photoconduction and photoconductivity both are nouns.

Word	Noun	Adjective	Verb	Adverb
photoconduction	Yes	No	No	No
photoconductivity	Yes	No	No	No

As nouns, photoconduction and photoconductivity are synonyms defined as:

photoconduction and photoconductivity: change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation

photoconduction (noun)	photoconductivity (noun)
change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation	change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation