What wet chemical cleaning treatment as surface preparation should be carried out on the AlN ceramic substrate?

07 August 2015 9,898 2 View

For coating the ceramic AlN substrate with Au, which metal layer should be used at first as an adhesion-promoter?

03 April 2015 9,096 8 View

What is the meaning of my Theta-2 theta scan in XRD measurements for Heteroepitaxial growth of GaAs thin films on silicon?

To evaluate the material quality, I have measured the XRD of my as-grown structures by performing theta-2theta (TTH) scan which exhibits poly-crystallinity as shown in the attached file. I have...

07 August 2014 2,076 54 View

Does anyone have experiences on the uniform/conformal deposition of thin metal layer (e.g. Cr, Ni ) on top of graphene?

07 August 2014 4,920 5 View

What is meant by single-domain graphene? Is the epitaxial graphene considered single-domain graphene?

When people report on epitaxial graphene on SiC(001) in the literature, does it mean that as-grown graphene has single-domain? What does the term, 'single-domain' mean? When we say,...

05 June 2014 1,531 2 View

Removal of PMMA residue from graphene surface - any thoughts?

I am wondering whether the stronger solvents like NMP, PG remover AZ300T, Alleg380 (compared to acetone) can help removing the PMMA residue from CVD graphene surface after it is tranferred into...

02 March 2014 5,114 1 View

Can dry etching damage CVD graphene?

Can anyone tell me whether the dry etching (ICP plasma ) can damage the CVD graphene which is buried under the uniform 25 nm Al2O3 layer? Can the plasma penetrate into the graphene covered by 25...

02 March 2014 2,363 6 View

How important is the ratio of absorption energy to bulk cohesive energy for predicting growth morphology?

Like metals, is Ea/Ec (ratio of absorption energy to bulk cohesive energy) also a good figure of merit to determine the growth morphology of compound material / compound semiconductor on graphene?...

11 December 2013 5,741 4 View

How much is the terrace width (w) in graphene films mechanically exfoliated from HOPG?

I would like to use graphene film as a substrate material lying on SiO2/Si. For predicting the growth mode, I would need to know the width of atomically flat terrace. As it is known, the substrate...

11 December 2013 2,617 1 View

What is the difference between 2theta scan and 2theta/omega-scan in XRD measurements?

As we know, there are different scanning modes like 2theta scan (scanning of the diffracted beam) and 2theta/omega (scanning of the incident and diffracted beam). My question is what additional...

10 November 2013 1,798 10 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 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

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 kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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