Tazzy Bee

13 Questions 12 Answers 0 Followers

Questions related from Tazzy Bee

How we can dertermine the irreducible represrnation for higher order of J?

Metane belongs too Td MS group . The irreducible representions or symmteries for this group are A, E, T. When know that for J= 0 , I= 2 we have A1 or A2 symmetry for J=1,I =1 we have F1 or F2...

03 May 2019 6,929 3 View

Why PL and Raman peaks increases or decreases randomly???

I have prepared nanoparticles using laser ablation method. I have used 2nd harmonic beam, and prepared four different samples in de-ionized water by changing laser energy (60, 120, 180 and 240...

11 June 2017 8,717 3 View

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

I have prepared tin and tin oxide nanoparticles using laser ablation method. I have fixed the time and wavelength but vary the laser energy and liquid media ( acetone, ethanol and methanol). The...

01 May 2017 6,301 3 View

In UV spectroscopy what is the exact reason of blue and red shift?

I have prepared nanoparticles using laser ablation method.I have shined Nd: YAG laser (532nm) for 40 minutes and used different liquids(acetone,ethanol and methanol) at 30 and 60 mJ laser energy....

12 January 2017 2,674 2 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...

12 January 2017 8,955 2 View

Why oxidation rate is not constant for all liquid media in Laser ablation method?

I am doing research on tin and tin-oxide nanoparticle using laser ablation method and used de-ionized water, acetone, ethanol and methanol as liquid media. I have varied the energy from 60 to 240...

19 August 2016 1,060 3 View

Why in laser ablation method changing the liquid media produces different oxides?

I am producing tin and tin oxide nanoparticles using laser ablation method.I have used de-ionized water, methanol, ethanol and acetone as a liquid media for every liquid varied the energy. The X...

21 July 2016 4,014 4 View

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

I am doing research on nanoparticles using laser ablation method.I am varying different parameters and Xrd results show an increase in intensity with increase in laser fluence.

11 July 2016 9,533 9 View

Why band gap decreases when nanoparticles places in liquid a week?

I am doing my research on metal nanoparticles by using laser ablation in de-ionized water.The day i prepared my sample i did Uv-vis Characterization to determine the band gap.I placed the sample...

20 June 2016 8,718 6 View

Why in laser ablation method with increase in energy the band gap of of nano particles also increases ?

I am doing research on tin and tin oxide nanoparticles using laser ablation method. Using Nd:YAG laser in visible range (532nm) .By increasing the energy i have absorbed an increase in bandgap....

12 May 2016 5,608 5 View

Why the oxide percentage increases with the increase in energy of Nd:YAG laser in laser ablation method?

I am doing research on tin and tin oxide nanoparticles using laser ablation method. Using Nd:YAG laser in visible range (532nm) .By increasing the energy i have observed the decrease in the...

12 May 2016 7,438 12 View

How can I calculate the absorbance coefficient to calculate the band gap from tauc plot

I have got uv-vis spectroscopic data of tin-oxide in the form of graph of absorbance peak and now i want to find the band gap using Tauc plot.I need alpha(absorbance coefficient )for tauc plot...

16 February 2016 4,447 5 View

How can I analyse the absorbance and transmittance UV-VIS Spectrum of metal nanostructures?

I am working on tin oxide nano structures ,right now i have not obtained results from UV/Vis spectroscopy but want to analyse the spectrum from previous work. Unfortunately not much detail is...

04 January 2016 3,659 2 View