In the time resolved emission spectroscopy, how to find the lifetime from the graph?

More Issac Nelson's questions See All

How to estimate Internal photon conversion efficiency from Photo-luminescence Spectra? or What is the appropriate way to estimate it?

We have observed quenching in luminescence intensity for our prepared thin films. How to calculate Internal photon conversion efficiency (IPEC)? Does quantum yield is necessary to measure IPEC?

11 December 2018 2,882 3 View

What is the relation between annealing and reduction in grain size?

The grain size of the as deposited film was higher when compared to lower temperature annealed films and found to increase on 350C annealing. Material is copper based alloy..

06 July 2017 1,233 12 View

What is the signficance of W-H plot over scherrer equation in terms of Strain crystallite size calculations?

I have seen papers estimating crystallite size using scherrer formula and strain line broadening using W-H plot. whats the reason behind it?

02 March 2017 2,645 7 View

How to the calculte the dipole moment of ground state by using the formula given below?

where S1= 164 cm-1 S2= -400 cm-1 a= 3.64 angstron h plancks constant c velocity of light Answer should be expressed in debye (D) Help needed for the calculation.

10 November 2016 2,073 1 View

What is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

Why does intensity drops as concentration increases?

Is there any reason for decrease in fluorescence emission intensity of HSA,BSA when increase the concentration ?

28 February 2021 3,653 4 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Can I use a graph from a another source in a thesis?

I have a permission from X company to use their graph from a report, but they have a reference in the bottom left corner of the graph as follows: "Source: Database Y". Is it OK to use this graph...

24 February 2021 2,269 3 View

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Could you please suggest to me research in which a relation between the shear wave velocity and the degree of saturation for stone was discussed?

Hi all, I am looking for a graph or a relation that relates the degree of saturation and the shear wave velocity for the marlstone. Looking forward to your suggestions Best Regards

24 February 2021 9,690 1 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Hamit Can

https://www.google.com.tr/amp/s/www.researchgate.net/post/How_to_find_full_width_at_half_maximum_FWHM_using_Origin/amp

https://www.google.com.tr/amp/s/www.researchgate.net/post/What_is_the_importance_of_measuring_full_width_at_half_maximum_in_dipole_surface_plasmon_resonance_what_does_the_values_of_fwhm_mean/amp

Issac Nelson

Hamit can i have meant to say that i am familiar with FWHM calculations. They have found T1 T2 T3 where from my graph i can find only T directly by measuring my FHWM.

Hugh J Byrne

Lifetimes for emission decays are normally calculated from Ln(Intensity) vs time.

If the decay is exponential, it should give a straight line with (negative) slope of the inverse lifetime.