Photoconductivity is an optical and electrical phenomenon in which a material becomes more electrically conductive due to the absorption of electromagnetic radiation such as visible light, ultraviolet light, infrared light, or gamma radiation.
What is photoconductivity?
Photoconductivity, the increase in the electrical conductivity of certain materials when they are exposed to light of sufficient energy.
How is photoconductivity measured?
Experimental Methodology
- Check the ohm law in the contacts in the dark.
- Measure the residual conductivity (residual or dark current Io)
- Measure the steady state photoconductivity for each wavelength.
- Measure the lamp signal for each wavelength, correct according to the detector response (using a rule of three)
