How to reduce lattice mismatch and dislocation densities in epitaxial films?

what factors affect an epitaxial film's lattice matching and dislocation densities? Are there any possible ways to reduce lattice mismatch and dislocations in various deposition techniques?

10 November 2019 9,343 3 View

What is the difference between fluorescence and luminescence background in Raman spectra?

what is the difference between fluorescence and luminescence background in Raman spectra? What kind of materials give fluorescence background and what kind of materials give luminescence background?

06 July 2019 1,905 2 View

What will the mixture of a direct and indirect band gap semiconductor be?

Cu2O and CuO are direct and indirect band gap materials respectively. We deposited a film that shows the Raman signatures of both CuO and Cu2O, what will be their band gap, direct or indirect?

05 June 2019 3,222 3 View

What are the easiest methods of doping graphene?

I have CVD graphene transferred to substrates. I am interested in p and n-doping of graphene. Are there any simple, easy and controllable methods of doping graphene films?

04 May 2019 1,269 9 View

How sometimes Raman-inactive and IR-active modes are observed in Raman spectra?

Sometimes, we can observe the IR-active and Raman-inactive modes in Raman spectra. What are the reasons behind the Raman activity of such modes?

04 May 2019 7,364 5 View

What can be the possible reasons and solutions of sample's surface going out of focus during in situ temperature dependent Raman spectroscopy?

We tried two different temperature dependent Raman set ups for our study. Every time we do temperature dependent Raman spectroscopy for a sample, the Raman signal is lost or quenched at some...

04 May 2019 3,759 8 View

What materials are highly sensitive to temperature?

what are the most temperature sensitive materials? Are there any materials that respond quickly to the abrupt temperature variations? I am interested in thin films mainly. I want find some...

03 April 2019 8,529 3 View

How to explain the IV data of photodetectors attached?

Its a photodetector.

03 April 2019 9,693 5 View

Which laser source is generally use for Photodetector IV measurements, pulsed laser or continuous laser source?

We have a pulsed laser source, and I have fabricated graphene based photodetectors, I want to study the IV characteristics and photoresponse of the devices. We don;t have a power meter, we have a...

03 April 2019 2,886 5 View

What are the in situ temperature dependent surface analysis techniques availabe?

I want to observe the surface of a sample in situ at different temperatures. Is it possible to take surface images at a particular temperature (mainly cryogenic temperatures)? If not, what in situ...

03 April 2019 5,173 11 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 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

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

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

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

Shall I skip the measurement model in SmartPLS?

Hello everyone, I had run a mediation model in SmartPLS using questionnaires that were already validated among my statistical population. A professor who edited my paper -though she is not...

01 March 2021 3,052 3 View