Navneet Bhardwaj

9 Questions 10 Answers 0 Followers

Questions related from Navneet Bhardwaj

What is the effect on capacitance of inter-digitated capacitor (IDC) with frequency?

Capacitance of IDC depends on the dielectric material used in IDC. I think, capacitance is decreased with increasing frequency because at high frequency dielectric don't hold the charge so charge...

04 April 2018 1,204 3 View

How can thining the GaN sample on sapphire substrate during sample preparation of X-TEM?

My sample is GaN on sapphire substrate. It is taking lot of time in cutting, lapping, dimpling etc processes. Which material should use for lapping the sample. I have SiC (silicon carbide) lapping...

08 August 2014 4,542 7 View

How can I prepare a sample for TEM imaging of thin film, nanoparticles etc?

Please suggest me how make sample for tem. I have no idea how sample for TEM thin film is prepared. I had made sample for nanocrystal in water as solvent.

08 August 2014 6,255 14 View

In an Eu-doped lanthenide nano crystal, 5D0 to 7F1, the peak is less decreased compared to a 5D0 to 7F2 peak with delay time. Why is this?

I think the 5D0 to 7F1 transition peak is related to a magnetic moment which is changed due to material, less at time delay, while the 5D0 to 7F2 transition peak is related to an electric dipole...

04 April 2014 806 2 View

What is the best sensitizer for Eu doped LaF3 nanocrystal for good luminescence?

I am doing work on LaF3 nanoparticle and studying the photoluminescence.

03 March 2014 6,956 1 View

What is basic difference between Quantum dots and nanoparticles? What is exact size of these?

I think that all quantum dots are nanoparticles but it is not true that all nanoparticles are Quantum dots. I think quantum dots having size 2nm- 10nm diameter and nano particle having size about...

03 March 2014 3,593 16 View

What is an effect of capping ligand on the surface of QDs (cdse,cds) in their optical properties decay time,PL intensity, etc?

I think decay time of QDs, is increase and PL is also increase.

02 February 2014 258 2 View

How can you synthesize CdSe quantum dot with Thioglycolic Acid (TGA) capping ligand?

I am interested in the PL of quantum dots.

02 February 2014 7,233 2 View

What is heterogeneity of polymer thin films? How to analyse and detect it?

I would welcome any suggestions. Thank you.

01 January 2014 3,852 2 View