Hey there!
I got two pictures of PCF's cross sections.
Can anybody tell me if these PCF are the same? I mean, why there is an outer ring of smaller air holes in the pic 2, what does that ring represents? (core, cladding)
aby book explainig that pheno? It is written in every book I' ve examined that these two currents should be approx the same, what in my case obviously is not met.
From that I get:
1) Characteristic U(I):
IL=ID+ISh and ISh= 0, so IL=ID=0,5
2) Characterisitic P(U):
0,5=IL=ID+1,17(it's measured ISh), so ID=-0,67 mA
sth wrong
It is my graph ;)
The current from P(U) is the current through the shut resistance, and Im from current-voltage characteristic shows the current without shut resistance. It is that what you mean?
In here http://www.instsani.pl/images/PV8.ht4.jpg you can see, that these currents are equal...
Hello there !
I got question regarding PV cell.
The current at maximum power Im calculated from current-voltage characteristic doesn't equal to the one calculated from P(Ushunt, as you can see in the attached picture. http://prnt.sc/b864hx
Furthermore, the Im from P(U) characteristic is about...
Hello there!
There is a problem with calculating the uncertainty from semi- ln plot. The linear fitting gives standard errors as you can see in attached picture. In the Y axis are ln J values, obviously. If the intersection with y-axis, x=0, then we get the point y=b=-33,21, and it's ln J', so...
Hey there !
Does anybody have got any, any literature describing the effect of slit width and orientation of colloid Earth dopped nanocrystals (example NaGdF4 : Er, Y b) influence on PL Spectra?
I will be very grateful for any book, article or your own helpful depiction ;)
Hello there!
The picture attached in file shows typical spectrum of transient absorption spectroscopy. Is it possible to have the same components in quantum dots?
Hi there,
My question is regarded to PP spectroscopy, I studied this method, expertimental set-up, transient absorption, and it is quite familiar to me. But nowhere I can't find any material that shows how this method can be used to study Nanocrystals, and that is what I am seeking for now...
Rebound, I think that the most used pomp and probe method to study NCs is Transient-absorption spectroscopy, but I am not quite sure. Could anybody verify this, and maybe know any other methods?