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 (ˌphotoconˈductor)
noun
photoconductivity in American English
(ˌfoutouˌkɑndʌkˈtɪvɪti)
noun
Physics
the increase in the electrical conductivity of a substance, often nonmetallic, caused by the absorption of electromagnetic radiation
Word origin
[1925–30; photo- + conductivity]This word is first recorded in the period 1925–30. Other words that entered Englishat around the same time include: Nazi, distinctive feature, dropout, payload, turnaroundphoto- is a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compoundwords. Other words that use the affix photo- include: photocell, photogenic, photogravure, photorealism, photosensitivity
Examples of 'photoconductivity' in a sentence
photoconductivity
Electronic properties were measured by dark conductivity, σd, and photoconductivity, σph.
Meysam Zarchi, Shahrokh Ahangarani 2015, 'A Comparison between Thin-Film Transistors Deposited by Hot-Wire Chemical Vapor Depositionand PECVD', Metallurgical & Materials Engineeringhttp://metall-mater-eng.com/index.php/home/article/view/128. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We also show photoconductivity that depends on an applied magnetic field.
Brian S. Holinsworth, Nathan C. Harms, Shiyu Fan, Dipanjan Mazumdar, Arun Gupta, StephenA. McGill, Janice L. Musfeldt 2018, 'Magnetic field control of charge excitations in CoFe2O4', APL Materialshttp://dx.doi.org/10.1063/1.5021792. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Photoconductivity analysis gives the variation of the photocurrent and dark current.
P. Baskaran, M. Vimalan, P. Anandan, G. Bakiyaraj, K. Kirubavathi, K. Selvaraju 2017, 'Synthesis, growth and characterization of a nonlinear optical crystal: l-Leuciniumperchlorate', Journal of Taibah University for Sciencehttp://www.sciencedirect.com/science/article/pii/S1658365516300036. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The electronic and ionic transports were studied by temperature dependent photoconductivity and impedance spectroscopy, respectively.
Peter Staffeld, Martin Kaller, Philipp Ehni, Max Ebert, Sabine Laschat, Frank Giesselmann 2019, 'Improved Electronic Transport in Ion Complexes of Crown Ether Based Columnar LiquidCrystals', Crystalshttps://www.mdpi.com/2073-4352/9/2/74. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A linear increase of the photocurrent on illumination suggests the positive photoconductivity of the crystal.
Jayaprakash Jeyaram, Krishnakumar Varadharajan, Boobas Singaram, Ranjith Rajendhran 2017, 'Optical, photoconducting, thermal and anisotropic mechanical behaviours of Benzimidazoliumsalicylate single crystals', Journal of Science: Advanced Materials and Deviceshttp://www.sciencedirect.com/science/article/pii/S2468217917301259. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The transient photoconductivity studies on the co-polymer confirmed the presence of traps.
I.M. Ashraf, Adel A. El-Zahhar 2018, 'Studies on the photoelectric properties of crosslinked-poly(acrylamide co-acrylicacid) for photo detector applications', Results in Physicshttp://www.sciencedirect.com/science/article/pii/S2211379718324021. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Sm doping further enhanced the photoconductivity of these films.
Pathak K.K., Pateria Mimi Akash, Deshmukh Kusumanjali, Jha Piyush 2019, 'Effect of Sm concentration on optical and electrical properties of CdSe nanocrystallinethin film', Materials Science-Polandhttp://www.degruyter.com/view/j/msp.2019.37.issue-1/msp-2019-0006/msp-2019-0006.xml?format=INT. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Interestingly, the wire network shows persistence of photoconductivity for several hours after switching off the photoexcitation.
B. K. Barick, Carlos Rodríguez-Fernández, Andres Cantarero, S. Dhar 2015, 'Structural and electronic properties of InN nanowire network grown by vapor-liquid-solidmethod', AIP Advanceshttp://dx.doi.org/10.1063/1.4921946. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
An understanding of the mechanism for persistent photoconductivity could lead to mitigation in future device applications.
James C. Moore, Cody V. Thompson 2013, 'A Phenomenological Model for the Photocurrent Transient Relaxation Observed in ZnO-BasedPhotodetector Devices', Sensorshttp://www.mdpi.com/1424-8220/13/8/9921. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)