Why the triple cation perovskite film becoming transparent after anti-solvent (CB) dropping while spinning ?

I am preparing triple cation perovskite films using a one-step process (4:1 DMF: DMSO). After the anti-solvent dropping (Chlorobenzene) (5s before the spinning end), the films become transparent...

11 December 2019 7,101 3 View

How metal NW array and transparent conducting films are different when one compares the NIR transmission spectra?

Due to high electron concentration in a metal or transparent conducting film the NIR transmission falls sharply due to free carrier scattering or plasmon resonance.However, in case of metal NW...

08 September 2018 8,143 3 View

Why Cu, Al and Mg are most used X-Ray anode??

In most of the XRD instrument Cu is used and in most of the XPS instrument Al/Mg is used? Is there any specific reason behind this??

07 August 2018 684 5 View

Wll there be any problem to use a magnetic target to do RF/DC sputtering??

I would like to deposit film of Yttrium iron garnet using magnetron sputtering technique. Will there be any problem during deposition?? Any risk to the system??

07 August 2018 468 15 View

Can anyone give an estimate on the market research on the worth of ZnO based TCFs?

I would like to know how much ZnO-based TCF (AZO, GZO) contribute (in % or in US$) to the present TCF market and any future forecast??

06 July 2018 634 5 View

What would form a better quality diode?? simple n-p or n+-n-p-p+???

Suppose I have two material having high carrier density (hole=5x1022 cm-3 and electron =5x1020 cm-3).. will this two film form good quality diode? Or I can make a diode putting one p and n type...

03 April 2018 2,594 8 View

If I prepare film by sputtering a target that contains mixture of three oxides (say ZnO, SnO2 and In2O3) what phase should I expect??

If thin films are prepared from a sputtering target that contains three different oxides in same weight percentage (33.3%)..... what might be the XRD of the film look like?? Will it contain all...

03 April 2018 7,363 11 View

Which metal oxide thin films can be prepared at lowest temperature of <200 deg C through wet chemical process??

I would like to prepare thin films of a metal oxide using only wet chemical process (I don't want to involve any vacuum system) to overcoat my existing sample. The process temperature should be...

03 April 2018 8,879 6 View

Why the plasmon frequency goes to higher energy with increasing electron density?

For metal or doped semiconductor like ITO, FTO, AZO the transmission spectra falls down at visible or NIR region. With increasing electron concentration, one can see the %T graph fall more rapidly...

02 March 2018 6,418 1 View

Is there any direct relation in between surface roughness and reaction rate??

I would like to know in case of chemical bath deposition process at fixed temperature whether a fast reaction rate would produce more rough surface (high RMS value in AFM) or not. Please site if...

31 December 2017 3,976 5 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 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