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photoconductivity

[foh-toh-kon-duhk-tiv-i-tee] /ˌfoʊ toʊˌkɒn dʌkˈtɪv ɪ ti/
noun, Physics.
1.
the increase in the electrical conductivity of a substance, often nonmetallic, caused by the absorption of electromagnetic radiation.
Origin
1925-1930
1925-30; photo- + conductivity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for photoconductivity
  • Finally, wavelength tuning is also useful in identifying impurity-activated photoconductivity in semiconducting materials.
  • Luminescence and photoconductivity of cerium compounds.
British Dictionary definitions for photoconductivity

photoconductivity

/ˌfəʊtəʊˌkɒndʌkˈtɪvɪtɪ/
noun
1.
the change in the electrical conductivity of certain substances, such as selenium, as a result of the absorption of electromagnetic radiation
Derived Forms
photoconductive (ˌfəʊtəʊkənˈdʌktɪv) adjective
photoconductor, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for photoconductivity

the increase in the electrical conductivity of semiconductors and insulators when they are exposed to light of sufficient energy. Photoconductivity serves as a tool to understand the internal processes in these materials, and it is also widely used to detect the presence of light and measure its intensity in light-sensitive devices.

Learn more about photoconductivity with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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