Re: FW: A Quantum-Thermodynamic Ratchet For Photonic Frequency Up-Pumping?

The information contained in this communication is confidential, may be attorney-client privileged, may constitute inside information, and is intended only for the use of the addressee. It is the property of Jeffrey Epstein Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by return e-mail or by e-mail to jeevacation@gmail.com, and destroy this communication and all copies thereof, including all attachments. copyright -all rights reserved

In order to generate the maximum volta=e-current product from a given area of (single-composition) semiconductor =lluminated with a given flux, it's clearly desirable to have monoc=romatic radiation that's 'matched' to the bandgap,=n-&-p Fermi levels, etc. of the chosen semiconductor. Howe=er, what God gives us — in generous total quantities, if not pleas=ntly high fluxes :) -- is a —0=5 eV Planckian spectrum with a batch of holes chewed in it, i.e., the sola= spectrum at AM1, for which the maximum-attainable energy conversion effic=ency is widely believed to be ≤0.5.

Even =hese performance levels are attained only with a half-dozen p-n junction a=tfully (i.e., very expensively) semi-insanely 'stacked' expensive, on each other, even arch for USG taking purposes) its bandgap-designated =E2 cf. appended 'bite' Figure. from It clearly incoming would =adiation be greatly (and pref=rable thus being to have a large fraction of the energy of the solar spectrum =98presented' to a suitable photovoltaic converter-assembly after b=ing 'transfigured' to single-energy (e.g., —2.5 eV) photon=.

So w=at are the basic prospects for usefully — i.e., practically -- mon=chromatizing the AM1 solar spectrum in the photovoltaic context?./u>

These=prospects would seem to be of non-trivial magnitudes — at least to=me-in-present condition! — as suggested by the appended items (whi=h 'connection' is admittedly somewhat distant)?<=u>

Molec=lar quantum oscillators can have very high Qs in/about the visible optical=spectrum, e.g., 106, when they're in vacuum-type=circumstances, i.e., are 'natural linewidth'-constrained.=C2 However, these Qs can be depressed by as much as —4 orders-of-magnit=de, e.g., via collisional interactions in normal (zero-P, non-resonant) me=ia.

So, w=at can we do with sets-of-(preferably, high-Q molecular) oscillators =80 physically-&-spectrally associated' with each other in a =uitably engineered environment (seemingly likely enabled by contemporary l=thographic capabilities, which already offers minimum features sizes most =f an order-of-magnitude smaller than visible spectral wavelengths of inter=st)?

We wo=ld presumably arrange these molecular assemblies in stacks of planar sheet= of 'unit cells' containing something of the order of a do=en high-oscillator strength transitions (perhaps carried on something like=a half-dozen well-chosen molecules — or quantum dots?) which would=together 'cover' the AM1 spectrum between, say, 0.5 and 1.= microns free-space wavelength.

These=would serve to 'harvest' most all of the inputted so=ar radiation over this —1.6 octave-width spectral band and then make it av=ilable for re-radiation by a 'master molecular' oscillator=located proximate to the 'unit cell' to whose upper-level =hey would each be (chosen to) be chosen to couple by short-range non-radia=ive energy transfer while concurrently making an 'energy contribut=on' of the order of a few kT to the local medium — so as t= helpfully make up energy differences between the two donating quantum osc=llators and the donated-to one and (not quite incidentally) to conf=r a degree of thermodynamic irreversibility onto the energy transfer proce=s.

The d=nated-to molecule then fluoresces the up-pumped (in the frequency sense) q=antum energy with high energy-goi=g-uphill quantum inability efficiency to effectively — helpfully back-transfer conferred by=lack-of-competing its excitation to adjacent=donating de-excitations molecules. in its surroundings, e.g., the

These=up-pumped, quasi-monochromatic photons are then 'inputted'=(via device-internal reflectors, etc. aimed at optical transfer efficiency=optimization) to a photovoltaic conversion section of the device.

'spectrally-e=hanced Yes, sunlight' of course into I also high-energy have-in-mind chemical the an=logous bond-rearrangements, photochemical e.=., trick, energy in which efficiency-enhanced we convert such photosynthesis! J

Of present interest are two distinct item=:

[1] <==>Constructive (i.e., repair-oriented!) criticism-as-may-be-indicated o= the proposed physical mechanisms and stringing-togethers thereof; =u>

[2] C=mments of a 'practical' or implementation-focused characte=, e.g., how can this proto-device be made to work significantly better =80 i.e., in-any-&-all-ways-more-practical -- than as-sketched above=

Thanks!

Lowell=u>

photosynethes seems to work by not needing the particle at all , but the re=cting to its wave nature, . the light should be able to be tuned. an= not one gap but many being activated by the same photon