Help with photoelectric effect

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SUMMARY

The discussion centers on utilizing the photoelectric effect for a classroom presentation, specifically exploring its application in creating a simple solar cell. A suggestion is made to use a metal with a low work function, shaped into a parabola, to focus light and collect ejected electrons at the focal point. The feasibility of this concept is questioned, particularly regarding the trajectory of the emitted electrons and the method of collecting them for practical use. Clarification is sought on whether the photoelectric effect is synonymous with the photoconductive effect.

PREREQUISITES
  • Understanding of the photoelectric effect and its principles
  • Knowledge of materials with low work functions
  • Familiarity with parabolic shapes and their optical properties
  • Basic concepts of electron collection and circuit design
NEXT STEPS
  • Research the properties of metals with low work functions for solar cell applications
  • Learn about the design and construction of parabolic reflectors
  • Investigate methods for collecting and measuring emitted electrons
  • Explore the differences between the photoelectric effect and the photoconductive effect
USEFUL FOR

Students in physics, educators preparing presentations on the photoelectric effect, and hobbyists interested in solar energy projects.

rspandher
how can i use photoelectric effect to do a in class presentation. hoe can i exploit this phenomenan to make something meaningful from physics point of view. please give appropriate suggestions.
 
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Is the photoelectric effect the same as a photoconductive effect? If so, I have an idea.
 
You could try to make a very simple solar cell. Find a metal with a very low work functin, shape it into a parabola, shine a light onto it, and put something to pick up the ejected electrons at the focus and use it to make a christmas light shine or something. Of course this makes an assumption I'm not sure I'm totally justified in making. I know that if you were to shine light in a parabola it would reflect and go to the focus, however I don't know that I can assume the ejected electrons would travel with the same trajectory? Also I don't know what you could use to collect the emitted electrons and put them through a wire. Perhpas someone smarter could help.
 

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