How does the level/strength of interfacial contact between a semiconductor & a substrate or dye affect the charge carrier transfer between them?

More Abdullahi B. Makama's questions See All

What is the most efficient method of separating CdS nanoparticles from its mother liquor?

CdS nanoparticles adhere to the side walls of centrifuge tubes during purification which cause severe loss. What is the most effective way of preventing this from happening?

31 December 2013 3,828 4 View

Why is it that not all diffraction peaks appear in a typical XRD diffractogram?

10 November 2013 1,080 17 View

Water Photolysis reaction model

I am interested in developing a reaction model for hydrogen production from water using a photocatalyst, can anybody help?

04 May 2013 2,715 0 View

Renewable Energy Research

I am about to start my PhD work on biomass pyrolysis. kindly let refer me to some good literatur

09 October 2010 7,006 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

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

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

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

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

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

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

Samares Kar

It is not so much a question of strength as of intimacy. An intimate contact is necessary for electron or hole transfer across a semiconductor interface. An intimate contact means that the semiconductor surface should be within a tunnelling distance of the substrate surface.

Z. Ben Hamed

it is question of metal/semi-conductor interface mechanisms such as Contact Métal/SC: diode Schottky or Tunnel contacts. more information in http://ecee.colorado.edu/~bart/book/book/chapter3/ch3_5.htm