Phototransistor: A transistor with a collector junction that is exposed to light, producing more sensitivity to light than a photodiode does. Related posts: Personnel Management Operative Functions Administrative Role of PM Competency HR Management Role Change Personnel Policies Personnel Procedures Appealed Policies Implied Policies Specific Policies Personnel records Research Pure research Personnel research Attitude or Opinion Survey Turnover Secondary research Applied research Personnel audit Read more articles Previous PostPhotodiode Next PostPierce Crystal Oscillator