"Violating" Einstein's Photoelectric Effect Model - Comments

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Discussion Overview

The discussion revolves around potential violations of Einstein's photoelectric effect model and their implications for improving photovoltaic cell efficiency. Participants explore theoretical extensions and practical applications related to this phenomenon.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested, Experimental/applied

Main Points Raised

  • Some participants appreciate the elegance of Einstein's original model while acknowledging that extensions like electric field effects and multi-photon processes are more complex but technologically significant.
  • One participant questions whether violations of Einstein's rule could enhance the efficiency of photovoltaic cells, particularly in the context of concentrated solar power.
  • Another participant mentions ideas about converting infrared light to visible light by combining the energy of multiple photons, suggesting that while the efficiency gain may be minimal, it could still be beneficial.
  • It is noted that mirrors used in concentrated solar power are independent of the discussed ideas regarding photon energy conversion.

Areas of Agreement / Disagreement

Participants express a mix of appreciation for the foundational model and curiosity about its extensions, indicating that multiple competing views and ideas remain without a clear consensus on their implications for photovoltaic efficiency.

Contextual Notes

The discussion includes assumptions about the applicability of Einstein's model to modern technologies and the potential for efficiency improvements, which remain unresolved.

Who May Find This Useful

Readers interested in the intersections of theoretical physics and practical applications in solar energy technology may find this discussion relevant.

ZapperZ
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ZapperZ submitted a new PF Insights post

"Violating" Einstein's Photoelectric Effect Model

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Thank you ZapperZ for a thoughtful insight article! The simplest cases such the one addressed by Einstein are typically the most beautiful and elegant ones. The extensions that comes later such as the electric field effect, heat effect or mutli-photon processes are typically the most labor-intensive less beautiful but technologically important cases.
 
Nice article Zz!
 
I was wondering if these violations of Einstein's rule could be used to make photo voltaic cells more efficient? Keep in mind that with the concentrated solar principal (more info here http://www.technologyreview.com/news/540856/doe-attempts-to-jump-start-concentrated-solar/ ) acres of mirrors can concentrate light onto a few solar cells. Thank you for your time!
 
There are some ideas how infrared light can get converted to visible light (with sufficient energy per photon to be used by the cell) by combining the energy of at least two photons. The efficiency gain won't be large, but maybe better than nothing.
Mirrors are independent of all those ideas.
 

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