Emission of LIGHT when ELECTRONS return to the electronic ground state from an excited state and lose the energy as PHOTONS. It is sometimes... | Contact experts in Luminescence to get answers
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Questions related to Luminescence
When presenting a unified gray display, strongly illuminated, an illusion of dark line in the middle of it is present. Can one explain why? Is it another instance of lateral inhibition or is it...
05 May 2018 8,539 0 View
Dears, Solid state photoluminous measurements on Dy and Ho indicate that only Dy based complex shows a measurable emission. Why only the dysprosium shows measurable emission peaks (cyan...
04 April 2018 2,650 10 View
1) I have attached my xrd result .Please provide JCPDS Card for same if avilable. 2) Peaks(2theta) observed are 20.12, 19.7, 12.3, 21.96 .(As per my findings (Luminescent cellulose fibers...
04 April 2018 3,553 2 View
Molecular oxygen can quench luminescence signal of fluorophores. I want to know if I can attribute this phenomenon only to singlet oxygen generation in a organic media. I plan to perform...
04 April 2018 8,163 3 View
no
04 April 2018 7,404 0 View
Using this kit, I have found a greatly reduced luminescent signal in my treatment groups that have bacteria, and I am wondering if the bacteria have the ability to alter the kit reagents.
03 March 2018 6,955 4 View
Hi Guys, I need some info regarding UV-Vis spectrum and excitation spectrum. I understand excitation spectrum is scanning the excitation wavelengths by fixing one luminescence wavelength. And...
03 March 2018 9,384 5 View
we need a high-symmetry site occupation for enhanced luminescence
03 March 2018 7,582 0 View
What is the best zinc precursor for Zinc Oxide Nanotubes (ZnO)?
06 February 2018 4,786 6 View
I have a compound where, which is fluorophore in itself and quenches the luminescence due to lanthanides. It might have two lanthanides in the same crystal structure, since luminescence is not an...
02 February 2018 8,732 3 View
can anyone explain or suggest what aspect of the molecular design leads to Cooperative Upconversion luminescence in solution?
02 February 2018 5,130 0 View
I had a student present some work on carbonate diagenesis of paleosol and siliciclastic cements at GSA and a few people came up to him and asked if he had considered doing cathode luminescence...
02 February 2018 9,164 2 View
How to calculate CRI and CCT values for a light emitting material ? I have the PL data at ambient temperature, PLQE values and CIE co-ordinates.
02 February 2018 2,836 5 View
Hi All, I find many literatures report that the luminescence properties of a luminophor could be affected by the solvents, ion strength, temperature, etc. The viscosity, dielectric constant,...
01 January 2018 4,627 4 View
I am doing Ubiquitination assay of my target protein. Unluckily, most of the time i got black background hiding the smeared ubiquitinated protein. i tested it by changing various experimental...
21 December 2017 3,256 4 View
Hi, When can we use either intensity (of luminescence) or the decay rate to calculate the activation energy in an Arrhenius plot? I mean can we use intensity at all? And if we can, is there...
12 December 2017 1,231 1 View
Which nanocrystal have high luminescence, 3D or 2D nanocrystal of lead based perovskite ?
12 December 2017 7,574 3 View
Hi all, I prepared some transitional metal oxide solution by mixing nano powder transitional metal with organic solvent and some H2O2. Then I deposited the solution on silicon using spin coating....
19 October 2017 5,628 9 View
I have used a Si CCD detector setup to measure the electroluminescence of a LED. The y axis unit is given as counts/sec. I want to extract the output power density of the LED. Is there a way to...
14 September 2017 2,862 3 View
CdSe Quantum Dots Photoluminescence Ligand Field transition
09 September 2017 1,881 3 View
Two peaks in my PL spectra keep shifting towards each other when temperature is taken from 7K to 295K and finally merge into one. I need to deconvolute them at each stage to have better...
09 September 2017 470 8 View
It is basically related to the sensing of an analyte by MOF .
08 August 2017 6,759 3 View
We prepare a powder mixture of oxygen deficient zinc oxide (ZnO1-x) and carbon dots from zinc nitrate and citric acid precursor. Actually, we aim to prepare ZnO1-x only but carbon dots also appear...
08 August 2017 9,638 5 View
Lets say we have a room temperature PL spectrum. If an oxide material (eg: Cu2O) have very strong defect related PL emissions (O vacancies, Cu vacancies) and weak band-to-band PL emissions (but...
07 July 2017 2,220 3 View