How is band gap estimated by UV-Vis spectroscopy?

Usually III-V semiconductors have direct band gap and can be calculated directly by some mathematical manipulation, however few inorganic materials usually don't exhibit a prominent absorption...

07 August 2015 7,536 3 View

How can I obtain JCPDS files for inorganic materials like metal sulfides, Nitrides, Oxides, Phosphides, and alloys?

Is there any software or list for comparison of XRD patterns. Actually i am trying to synthesizing the same materials by different source and different methods in this regard I have to study their...

03 April 2015 3,556 2 View

Which kind of information we can deduce from peak area of X-ray diffraction pattern?

11 December 2014 4,453 8 View

Does the Caping agent affect the geometry of nano-sized materials?

Which type of capping agent should we select for nano-sized semiconducting material synthesis?

10 November 2014 8,693 11 View

Is their any green method for indium phosphide synthesis?

10 November 2014 7,826 1 View

How to estimate the Band gap and nanoparticle size by UV-VIS Spectroscoy

Is their any mathematical tool for band gap and particle size estimation for this technique?

09 October 2014 9,813 2 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

Isolates of Hymenoscyphus fraxineus?

Dear Dr. Cai, my name is Simone Prospero and I work in the team of Phytopathology at the Swiss Federal Institute for Forest Snow and Landscape Research (WSL;...

01 March 2021 1,133 1 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View