Why the oxide ratio of nanoparticles fluctuates in different liquid media?

04 May 2017 5,100 4 View

Why the PL peaks in tensity increases when we reduces the laser energy ?

01 February 2017 6,573 5 View

Why double band appears during tauc plot?

I have prepared nanoparticle in de-ionized water using laser ablation at 180 mJ laser energy...i calculated band gap as 4.26 eV using tauc plot and kept my sample in liquid for and after 15 days...

31 December 2016 9,585 2 View

What is the exact relationship between intensity and 2 theta in XRD?

11 December 2016 616 19 View

Why XRD shows different plane of different intensity for samples prepared using LA?

07 August 2016 5,255 8 View

Why the absorbance decreases with an increase in laser energy?

06 July 2016 3,937 9 View

Why the nanoparticles prepared in ethanol using laser ablation method produced less oxide compare to other liquid?

I am doing research on tin and tin oxide nanoparticles using laser ablation method.I have varied the liquid media from de-ionized water to acetone ,methanol and ethanol.The all the...

06 July 2016 3,503 3 View

Why the XRD peaks shows and increase in intensity when an increase in laser fluence?

06 July 2016 5,945 10 View

Why using lader ablation method the oxide ration decreases with an increase in laser fluence when compare it to other liquid media?

06 July 2016 7,963 2 View

Why the nanoparticles size decreases with an increase in laser fluence?

05 June 2016 4,761 7 View

Is it possible to have two luminescence bands of the same peak position but with different intensities in single spectrum??

Hi! If it is possible to have two luminescence bands of the same peak position in a spectrum, what is the reason behind formation of two separate bands instead of one? This phenomenon is related...

26 February 2021 4,963 5 View

Why use STOP solution in ELISA?

At the last step for data analysis, we always use a STOP solution to stop the TMB oxidized by HRP. Why do we have to stop the reaction? Couldn't we measure the color wavelength of...

17 November 2020 5,177 3 View

What would cause Cell Titre Glo assay wells to luminesce less than the media only wells?

Hi all, I'm doing a bunch of Cell Titre Glo assays to assess the effects of several inhibitors on 2 cell lines. Problem is, for some of the wells they seem to be luminescing less than the...

30 October 2020 1,513 2 View

How I can find the quantum efffcincy from the measured and calculated decay time when the measured decay time is greater than the calcualted decay ?

I am working on the luminescence properties of Nd3+ ions doped phosphate glasses for which I have to study the decay time. I measured the decay time experimentally and also calculated the decay...

16 October 2020 951 7 View

How to find molecular energy transition from given chemiluminescent emission wavelength?

Hello, As part of my master's thesis, we are gasifying biomass in an entrained flow reactor. We are collecting the light emitted by the flame via a collimating lens and an optical fibre in order...

09 September 2020 1,262 2 View

I have got the following photo luminescence spectra data of AU-PD tio2 film for diffrent depotion rates ,can some one help me to analyse it broadly?

i have got the following photo luminescence spectra data of AU-PD tio2 film for diffrent depotion rates ,can some one help me to analyse it broadly? can we discuss it ??

02 September 2020 3,260 6 View

How to avoid getting organic particles to charr(become black) during calcination?

I am trying to synthesize SrHfO3:Eu2+ nanoparticles. To reduce from Eu3+ to Eu2+, we calcinate it under Ar/H2 conditions but it ends giving a black coloured product. We need this for luminescence...

22 August 2020 448 3 View

Does anyone use normal clear 96wells plate to test cell viability by using CellTiter-Glo?

In our lab, we use Corning 3903 White 96 wells plate to culture cells and use Celltiter-Glo (Promega G7570) to test cell viability, I wonder if we could use normal clear 96 wells plate, such as...

19 July 2020 8,029 3 View

Glass luminescence after high electromagnetic pulse?

In a Z-pinch test using Pulsotron-3 fusion reactor, I have seen at high-speed camera that a pyrex glass generated a beautiful green light during some milliseconds after the electromagnetic pulse...

18 July 2020 2,488 2 View

Calibration of radiocarbon and luminescence ages?

The radiocarbon ages (say for the Holocene) is calibrated to Before Present (1950) by using calibration curves and with software such as OXCal. If you use other dating methods such as U series or...

28 May 2020 3,759 13 View