The Collaborative International Dictionary of English v.0.48:

Photo-electric \Pho`to-e*lec"tric\, a. [Photo- + electric.]
   Acting by the operation of both light and electricity; --
   said of apparatus for producing pictures by electric light.
   [1913 Webster] Photo-electric

The Collaborative International Dictionary of English v.0.48:

Photo-electric \Pho`to-e*lec"tric\, Photo-electrical
\Pho`to-e*lec"tric*al\, a.
   Pertaining to, or capable of developing, photo-electricity.
   [Webster 1913 Suppl.]

Moby Thesaurus II by Grady Ward, 1.0:

25 Moby Thesaurus words for "photoelectric":
   battery-powered, cathodic, dynamoelectric, electric,
   electric-powered, electrified, electrifying, electrochemical,
   electrodynamic, electrokinetic, electromechanical, electrometric,
   electromotive, electronic, electropneumatic, electrostatic,
   electrothermal, galvanic, galvanometric, hydroelectric,
   photoelectronic, piezoelectric, static, thermionic, voltaic