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...

03 April 2018 1,080 3 View

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

07 August 2014 6,114 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...

03 April 2014 737 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.

02 March 2014 6,886 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...

02 March 2014 3,436 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.

01 February 2014 197 2 View

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

I am interested in the PL of quantum dots.

01 February 2014 7,160 2 View

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

I would welcome any suggestions. Thank you.

31 December 2013 3,788 2 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 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

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View