What are all the possible reasons for Spontaneous symmetry breaking in a double quantum well system?

Dear frnds, From my point of view SSB is happening due to following reasons in double quantum wells. 1. Due to variational technique 2. symmetry in envelop function and...

09 October 2019 7,944 2 View

How to account Bandgap renormalization in QWs?

Band gap re-normalization dynamics in nanostructures would induce lot of activities as we study interaction of 2D layer with light. Its understanding needs some clarity as below: 1. Which...

03 April 2019 3,846 5 View

What is the significance of size dependent dielectric screening in optimizing excitonic properties?

Mott-Wannier excitons are formed in a semiconductor material as a result of light-matter interactions. However, their delocalizing properties inside the crystal induce screening effects in their...

01 February 2019 2,333 1 View

What do you mean by band gap renormalisation regarding excitonic materials?

I often read about band-gap re-normalization in excitonic states contained in nanostructures. Please elaborate this effect and its significance.

04 May 2018 5,968 0 View

How to prepare a photoanode of DSSC using GQDs supernatant solution ?

GQDs are synthesized from GO using ammonia solution.After hydrothermal treatment the solution was filtered using 0.22 micrometer membrane. Finally to obtained GQDs as a supernatant liquid. Can...

04 May 2017 1,054 0 View

How to separate GQDs from the synthesized final solution?

04 May 2017 7,328 11 View

Can any body explain the sub-band structure of Quantum Rings?

Quantum Rings are an ideal nanostructure where its subbands are peculiar in nature. It shows higher binding energy than the effective Rydberg at bulk limit. A contrasting behavior than the...

02 March 2016 4,296 1 View

How to increase the exciton concentration in intrinsic semiconductor? can it be possible with doping?

any body

08 September 2015 2,819 0 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

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

Why does blocking with my immunogenic peptide cause nuclear fluorescence in ICC?

Hi all, I am validating a polyclonal antibody raised against human ANT4, through WB and ICC. In most of my controls, the antibody shows very little off-target binding, but when I pre-incubate the...

03 March 2021 5,999 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View