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

Can we compare band gap obtained from optical spectra and scanning tunneling spectroscopy?

I want to compare band gap values obtained from tauc plot and scanning tunneling spectra.

08 September 2014 5,711 0 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

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 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 is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 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