Photoconductivity
Photoconductivity at Amazon
Buy books at Amazon.com and save. Qualified orders over $25 ship free.
Amazon.com/books
Buy Photoconductor
Computers, Networking & More. Photoconductor on Sale.
www.NexTag.com/computers
Photoconductivity
Buy Atomic Absorption products using auctions, for sale, wanted Ads.
www.labx.com
Photoconductor
Find Bargain Prices On photoconductor.
BizRate.com
Photoconductivity - Wikipedia, the free encyclopedia
Photoconductivity is an optical and electrical phenomenon in which a material ... Retrieved from "http://en.wikipedia.org
en.wikipedia.org
photoconductivity: Definition from Answers.com
photoconductivity n. , pl. -ties . Electrical conductivity affected by exposure to light. photoconduction pho ' toconduc ' tion n
www.answers.com
Photoconductivity
Photoconductivity refers to the difference of electrical conductivity of a ... Measurement of photoconductivity consists of I - V measurements conducted under ...
www.fisk.edu
photoconductivity - Wiktionary
photoconductivity. Plural. uncountable. photoconductivity (uncountable) ... Retrieved from "http://en.wiktionary.org
en.wiktionary.org
Selected Papers on Photoconductivity - Joshi: Publications: SPIE.org
109 Spectral oscillation of impurity photoconductivity and the photo-Hall effect ... 121 High resolution photoconductivity studies of residual shallow donors in ...
spie.org
www.chalcogen.infim.ro/Pal.doc
Temperature dependence of photoconductivity measurements indicate that photo ... A persistence photoconductivity is also observed which increases at higher ...
www.chalcogen.infim.ro
Warning: mkdir() [function.mkdir]: Permission denied in /home/webs/affiliatelib2/CacheManager.php on line 12
Warning: mkdir() [function.mkdir]: No such file or directory in /home/webs/affiliatelib2/CacheManager.php on line 12
Warning: fopen(/home/templatecore2cache//*cluesnet.com/92/92a499b724f41396e8c3e5d8eea6100c40e719cd.tc2cache) [function.fopen]: failed to open stream: No such file or directory in /home/webs/affiliatelib2/CacheManager.php on line 130
Warning: fwrite(): supplied argument is not a valid stream resource in /home/webs/affiliatelib2/CacheManager.php on line 131
Warning: fclose(): supplied argument is not a valid stream resource in /home/webs/affiliatelib2/CacheManager.php on line 132
Photoconductivity is an optical phenomenon and electrical phenomenon phenomenon in which a material becomes more electric conductance due to the absorption of electro-magnetic radiation such as visible light, ultraviolet light, infrared light,or gamma rays. Lead content of the surrounding area can be a factor in the effectiveness of this, however. When light is absorbed by a material like a semiconductor, the number of free electrons and holes changes and raises the electrical conductivity of the semiconductor. To cause excitation the light that strikes the semiconductor must have enough energy to raise electrons across the forbidden bandgap or by exciting the impurities within the bandgap. When a bias voltage and a load resistor are used in series with the semiconductor, a voltage drop across the load resistors can be measured when the change in electrical conductivity varies the current flowing through the circuit. Two classic examples of photoconductive materials are the polymer polyvinylcarbazole, which is used extensively in photocopy (xerography); and Lead(II) sulfide, used in infrared detection applications, such as the U.S. Sidewinder missile and Russian Vympel K-13 heat-seeking missiles and selenium, as employed in early television and xerography experiments.
See photoconductor.
Application solar cell
photoconductive antenna