Yes - this is very good news for many potential energy applications -
the problem being: is platinum absolutely necessary?
There are a number of exotic cold cathode materials already in mass
production - going back to one of the great unsung heroes of invention:
Philo Farnsworth.
Here is
In reply to Jones Beene's message of Thu, 18 Jan 2007 07:11:49 -0800:
Hi,
[snip]
Yes - this is very good news for many potential energy applications -
the problem being: is platinum absolutely necessary?
There are a number of exotic cold cathode materials already in mass
production - going
Semiconductor coating lowers the work function of metal
plates:
http://focus.aps.org/story/v6/st3
If this effect can be combined with field emission from
points that are covered with the semiconductor as they are
exposed flush with a flat composite matrix of embedded
consistent diameter
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