Photoconductivity - Wikipedia
网页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. [1]
Photoconductivity | Definition, Examples & Usage | Britannica
网页Photoconductivity, the increase in the electrical conductivity of certain materials 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.
Photoconductivity: Fundamental Concepts - Wiley Online Library
网页2022年6月17日 · Photoconductivity is defined, and the importance of electrical contacts are highlighted by examining the origin of the dark current flowing through a photoconductor. The Shockley–Ramo theorem is explained and the photoconductive gain and the necessary prerequisites for its manifestation are discussed. Major recombination kinetics are ...
How do photoelectric cells work? - Explain that Stuff
网页2023年3月6日 · Photoelectricity is about light energy being converted into electrical energy and it happens in three different (though, on the face of it, quite similar) ways. They're known as the photoconductive, photoemissive, and photovoltaic effects—and we'll look at …
Photoconductivity and Photoconductive Materials | Wiley Online …
网页2022年6月28日 · In Photoconductivity and Photoconductive Materials, Professor Kasap delivers a definitive guide to the basic principles of photoconductivity and a selection of present topical photoconductive materials. Divided into two parts, the set begins with basic concepts and definitions and coverage of characterization using steady state, transient …
Photoconductivity - an overview | ScienceDirect Topics
网页Photoconductivity is the enhancement in the dark conductivity of materials on absorption of electromagnetic radiation, especially in 400 nm–800 nm. The phenomenon of photoconductivity was observed by Willoughb Smith in 1873 with a selenium resistor.
Photoconductivity - SpringerLink
网页2023年2月3日 · Photoconductivity provides information about carrier excitation and relaxation processes and hence about electronically significant imperfections. Photoconductors can be substantially sensitized by doping with slow recombination centers. An exceedingly long dwell time for carriers captured in traps may induce persistent …
Photoconductive Materials - Wiley Online Library
网页2022年6月17日 · Their sheer number and diversity promote a wide range of sensitivities covering almost all electromagnetic spectrum, from terahertz to γ-ray wavelengths. This chapter focuses on the phenomenon of photoconductivity from a materials point of view and how it is evolving.
Photoconductivity in Materials Research | SpringerLink
网页2017年1月1日 · Photoconductivity , defined as the increase in conductivity of a material resulting from the absorption of optical photons, has traditionally played a significant role in materials research, most notably in the study of covalently bonded …
网页Photoconductivity experiments have been extensively used by numerous researchers to characterize semiconductor materials. The tutorial will address some typical photoconductivity experiments such as ac photoconductivity and time-of-flight (TOF) transient photoconductivity techniques.
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