09.02.2018 Views

Practical Guige to Free Energy Devices

eBook 3000 pages! author: Patrick J. Kelly "This eBook contains most of what I have learned about this subject after researching it for a number of years. I am not trying to sell you anything, nor am I trying to convince you of anything. When I started looking into this subject, there was very little useful information and any that was around was buried deep in incomprehensible patents and documents. My purpose here is to make it easier for you to locate and understand some of the relevant material now available. What you believe is up to yourself and is none of my business. Let me stress that almost all of the devices discussed in the following pages, are devices which I have not personally built and tested. It would take several lifetimes to do that and it would not be in any way a practical option. Consequently, although I believe everything said is fully accurate and correct, you should treat everything as being “hearsay” or opinion. Some time ago, it was commonly believed that the world was flat and rested on the backs of four elephants and that when earthquakes shook the ground, it was the elephants getting restless. If you want to believe that, you are fully at liberty to do so, however, you can count me out as I don’t believe that. " THE MATERIAL PRESENTED IS FOR INFORMATION PURPOSES ONLY. SHOULD YOU DECIDE TO PERFORM EXPERIMENTS OR CONSTRUCT ANY DEVICE, YOU DO SO WHOLLY ON YOUR OWN RESPONSIBILITY -- NEITHER THE COMPANY HOSTING THIS WEB SITE, NOR THE SITE DESIGNER ARE IN ANY WAY RESPONSIBLE FOR YOUR ACTIONS OR ANY RESULTING LOSS OR DAMAGE OF ANY DESCRIPTION, SHOULD ANY OCCUR AS A RESULT OF WHAT YOU DO. ​

eBook 3000 pages!
author: Patrick J. Kelly

"This eBook contains most of what I have learned about this subject after researching it for a number of years. I am not trying to sell you anything, nor am I trying to convince you of anything. When I started looking into this subject, there was very little useful information and any that was around was buried deep in incomprehensible patents and documents. My purpose here is to make it easier for you to locate and understand some of the relevant material now available. What you believe is up to yourself and is none of my business. Let me stress that almost all of the devices discussed in the following pages, are devices which I have not personally built and tested. It would take several lifetimes to do that and it would not be in any way a practical option. Consequently, although I believe everything said is fully accurate and correct, you should treat everything as being “hearsay” or opinion.

Some time ago, it was commonly believed that the world was flat and rested on the backs of four elephants and that when earthquakes shook the ground, it was the elephants getting restless. If you want to believe that, you are fully at liberty to do so, however, you can count me out as I don’t believe that. "

THE MATERIAL PRESENTED IS FOR INFORMATION PURPOSES ONLY. SHOULD YOU DECIDE TO PERFORM EXPERIMENTS OR CONSTRUCT ANY DEVICE, YOU DO SO WHOLLY ON YOUR OWN RESPONSIBILITY -- NEITHER THE COMPANY HOSTING THIS WEB SITE, NOR THE SITE DESIGNER ARE IN ANY WAY RESPONSIBLE FOR YOUR ACTIONS OR ANY RESULTING LOSS OR DAMAGE OF ANY DESCRIPTION, SHOULD ANY OCCUR AS A RESULT OF WHAT YOU DO.

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Solving the general problem of screening in a ferroelectric is difficult. Many of the principles involved can be<br />

demonstrated by solving a special case. The special case is meant <strong>to</strong> be particularly applicable <strong>to</strong> the Pb(Zr 0.53 ,<br />

Ti 0.47 )0 3 + 1% by weight of Nb 2 O 5 material.<br />

Utilised, only for simplicity, is a two dimensional model, with pho<strong>to</strong>-produced carriers limited <strong>to</strong> those of a single<br />

sign. It will be assumed that these are electrons generated from deep trapping levels midway in the band gap, and<br />

that the illumination empties all the traps leaving fixed positive charges <strong>to</strong> replace the original traps. The complete<br />

emptying of a deep trapping level would produce the long wave length pho<strong>to</strong>-voltages and the phenomena of an<br />

intensity saturation of the pho<strong>to</strong>-emf typical of the Pb(Zr 0.53 , Ti 0.47 )O 3 + 1% by weight of Nb 2 O 5 .<br />

Consider a two dimensional illuminated slab of length l within which is an internal field Epsilon and within which,<br />

light generates a uniform density of electrons n o (n electrons per unit length). Schematically the situation is shown<br />

in Fig.25, where Phi.(x) is the potential at a point x.<br />

The carriers respond <strong>to</strong> the internal field and occupy a Boltzman distribution<br />

if the fields due <strong>to</strong> the electrons could be neglected, then<br />

This is, of course, <strong>to</strong>o rough an approximation. With n(O) the density of electrons at x=0, and n o , the density of the<br />

immobile donor ions<br />

with Phi(x) is given by Poisson's equation,<br />

Since for Phi = 0 n(0) =n o , and since all traps are emptied, assuming electrical neutrality,<br />

If the crystal is neutral there must be no electric field at the boundary except the applied field -E o<br />

These two boundary conditions allow the solution of Poisson's equation.<br />

A - 322

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