Diode breakthrough
Lately people are asking about my diode research. It is on pause, but my final recommendation for anyone wanting to build a diode or diode array is as thus -->
My Diode Recommendations
- Find a good diode with *high* zero bias resistance.
That's it! 
Just one priority, high zero bias resistance, Rz. Not too high, otherwise the shunt resistance becomes an issue.
Given present data, here's my final mathematical diode model for the DC voltage produced by a diode -->
Vout ~= Rzt * 10pA
where Vout is the DC voltage produced by the diode, and Rzt is the total zero bias resistance of the entire diode array series/parallel group. For example, if you have 25 diodes, 5 in parallel, and 5 in-series, then that's one group. On the other hand, if you have 5 diodes in-series, and we call that a diode line with two wires on each end of the diode line, and then connect other diode lines together (only connecting the two wire ends of each diode lines together) then that does *not* count as a diode group. In such a case, we would need to calculate each diode line separately. So if there are 108 diodes in direct parallel connection, and then 10 of those in series where the zero bias resistance, Rz, of each diode is 688Kohms, then Rzt is 688Kohms * 10 / 108 = 63.7Kohms, and Vout ~= 63.7Kohms * 10pA = 0.64uV.
Here are a few real examples -->
Photodiode - Part # is unknown. Appears to be an infrared photodiode:
Rz ~= 0.9G ohms
Vout (predicted) = 0.9G ohms * 10pA = 9mV DC. This photodiode has shown a preferred DC voltage of ~ 10mV.
My 156 in-series SMS7630 diode array:
Rz = 858K ohms
Vout = 858K ohms * 10pA = 8.58 uV DC. That's about as close to measured values as I could provide while my diode array was connected to a 1Mohm load.
Tom Schum's 32-parallel x 32-series 1N34A diode array:
Rz ~= 55K ohms.
Vout ~= 55K ohms * 10pA = 0.55 uV DC. According to Tom Schum's measurements, the average DC voltage produced by his diode array is 0.57uV DC.
Charles M. Brown 108-parallel x 10-series SMS7621 diode array made by Tom Schum:
Rz = 64K ohms
Vout ~= 64K ohms * 10pA = 0.64 uV DC. That's about as close to Tom's measurements on CMB's diode array as I can see.
Cheap green LED - part # is unknown:
Capacitor = 1.0uF
Charge time: ~ 10 hours
Predicted capacitor voltage: 360mV
Measured capacitor voltage: 353mV
Created on 2009-04-26 20:44:29 by EnergyMover
FE diodes, FE Misc devices, Free energy, Free energy devices, Science