Tin rich SnS nanoparticles shows higher band gap compare to Stochiometric SnS (Sn:S, 1:1)why?

Tin rich SnS nanoparticles shows higher optical band gap compare to Stochiometric SnS (Sn:S, 1:1) why?

08 September 2016 4,175 1 View

What is reaction between ethanedithiol and ethlynediamine?

mixture of ethanedithiol and ethlynediamine acts as a solvent for inorganic semiconductors. I just want to know to what is mechanism behind this solvent action.

01 February 2015 7,847 1 View

What would be the effect of initial precursor concentration on morphology of nanoparticles?

09 October 2014 2,209 3 View

How do you interpret scanning tunneling spectroscopy of ZnO thin film?

I want to interpret STS graph of ZnO thin film in the image below.

08 September 2014 5,133 1 View

What is difference between Conductive atomic force microscopy and Scanning tunneling spectroscopy

IN Both Conductive atomic force microscopy and Scanning tunneling spectroscopy technique I-V curve are detected. I want to know what is difference between them?

07 August 2014 9,928 2 View

How do you calculate the surface potential values of thin films from SKPFM (Surface kelvin probe force microscope)?

I want to calculate surface potential of ZnO films grown on Glass substrate from SKPFM. I took a image in SKPFM mode with Pt-ir probe in AFM.

06 July 2014 6,434 2 View

Do you have any advice for preparation of Nano-dots by RF sputtering?

I am planning to synthesize Nano-dots by RF sputtering of zinc oxide on glass substrate.

05 June 2014 1,505 2 View

How can I improve the efficiency of SnS based solar cells?

As efficiency of SnS solar cell is still low; theoretical efficiency is about 24%.

03 April 2014 5,567 1 View

Does deconvolution of the UV Vis spectra of SnS nanoparticles help to interpret the graph?

I have done deconvolution of the UV Vis spectra of SnS nanoparticles dispersed in water. The UV Vis spectra contains a continuous decreased graph from lower wavelength to higher wavelength. So...

03 April 2014 4,823 3 View

Why i am getting a continuous decreasing graph from lower wavelength (300nm) to higher wavelength (1000nm) in UV-VIS spectra?

I am getting continuous decreasing spectra in the UV Visible region.

03 April 2014 8,345 4 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

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

SEM or Multiple Regression for an analysis without Latent Variables?

Hello, I have three hypothesis to test, all with the same IV. I am testing if the effect of the IV on the first DV is mediated by awe. I am then measuring whether the effect of the IV on a...

26 February 2021 8,399 5 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

What information can be had from raman at higher wavenumber?

i have recorded raman spectra of strontium oxide thin film. the spectra were recorded in the range 400 to 4000 cm-1. i have reference to peaks upto 1000cm-1. but i couldn't find literature for...

26 February 2021 2,499 1 View

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25 February 2021 5,713 1 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

How can I simulate the optical absorption spectrum of a biomaterial (like DNA or protein) in COMSOL?

I need to simulate the optical properties of a biomaterial, namely DNA, in COMSOL. Basically I need to simulate the IR absorption spectrum of a cylinder filled with a 'concentration' of DNA. I am...

21 February 2021 3,043 3 View