In reply to Jones Beene's message of Wed, 26 Apr 2017 17:32:42 -0700: Hi, [snip] >A double miracle.... since ostensible OU was reported by Nature, the >anti-miracle(anti-LENR) mag... > >There may or may not be an LENR connection here. > >https://www.sciencedaily.com/releases/2017/04/170425124226.htm > >An overunity giant step toward producing hydrogen fuel? Essentially, >they created what is known as a quantum dot photoelectrochemical cell >that catalytically achieved quantum efficiency for hydrogen gas >production exceeding 100% -- approaching 114% ... > >...but hey - we can be happy, even elated with 99% since solar to >electric only gives about 18%. However, you may want to contemplate how >quantum efficiency differs from the normal variety...
I think quantum yield is just the number of electrons per photon. In which case it's not surprising that they exceed 100%, since some high energy photons are capable of creating multiple free electrons. This may happen when a high energy photon is absorbed, ionizing an atom and leaving the electron with enough excess kinetic energy to ionize another atom. Hence two free electrons iso one. Last year (I think) I tried pointing out to Mills that his optical spectrum was ideal for taking advantage of this principle, but it seems to have fallen on deaf ears. (Most of the energy he produces is in the UV to soft x-ray band.) Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
