What about the advance in x-ray free electron laser applications ?

08 September 2017 1,586 0 View

What is the best technique (TEM or SEM) to characterize ISO and ITO films on an SiO2 substrate?

The two techniques give spectra and follow the surface compound. Analytical results had been visible with TEM with EDS, but SEM gave the only image surface with best accuracy.

03 April 2014 3,078 2 View

How can you explain the additive effect on tin oxide to be more sensitive to pollutant gas detection?

Tin oxide SnO2 is used to detect pollutant gas due to its properties of being twice in configuration Sn4+ and Sn2+. But what is amazing is that it is more active when we add additives to it such...

03 April 2014 8,141 4 View

How can I theoretically explain that Ar+ions bombardment form nanostructures on III-V SC surfaces?

The bombardment of the surface of III-V semiconductors lead to the formation of nanostructures on their surfaces Experimentally, at low energy (300 eV) one can obtain nanodots on InSb, InP or...

01 February 2014 5,096 3 View

Can anyone advise me on a theory explaining the dramatic change in band structure of tin oxide when doped?

Experimental results give rise to many applications as gas sensing and solar cells for tin oxide when it is doped by Sb, Ag and Pt. The band structure and the gap change in value and give this...

31 December 2013 4,530 1 View

I need spectra of InGaNAs using MEB, FTIR, and PL technics

Semiconductors , III-V compounds, semiconductor laser

05 June 2013 6,725 2 View

What is the easiest technique to realize gas sensors with SnO2 material?

SnO2 on SiO2 substrate , SnO2 Sb doped

04 May 2013 8,349 6 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 the Ground Plane implantation is performed without damaging (and w/o varying the undoped nature) the top Si (8-10 nm) in FDSOI technology ?

It is a general practice to introduce Ground Plane in FDSOI devices under the BoX. The Ground Planes are introduced by Ion Implantation through Top Si layer and Buried Oxide. I wanted to know that...

24 February 2021 5,974 4 View

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View

How can we determine the band gap of a composite material that is made up of a composition of direct and indirect band gap semiconductor materials?

I have a direct band gap material and an indirect band gap material. If I made a composite of both through physical mixing. Then how can I determine the band gap of such a material as the Tauc...

17 February 2021 8,104 4 View

Any resist stripper which can remove thick metal based polymer residue and which is compatible with doped silicon ?

I am looking some resist strippers which can easily remove metal based polymer residue after post dry etch process. I have some candidates below but not sure if they are compatible with doped...

21 January 2021 3,008 3 View

What is the best way to calculate electrical conductivity of semiconductors and the same system with a layer of oxide using Quantum Espresso?

I have tried BoltzTrap, and EPW but I'm not sure whether Boltzmann Transport Equation is a right approach for a complex system (semi cond. + an Oxide layer or even the semiconductor itself). Also...

11 January 2021 4,597 4 View

How to calculate the band potential of a semiconductor material using energy band gap?

I am looking for methods to calculate the band potential of ZnFe2O4 and Fe2O3.

05 January 2021 6,416 2 View

Application for Ph.D. in Inorganic Chemistry?

I hope to have the opportunity to continue toI hope to have the opportunity to continue to do more in-depth research, do more in-depth research. My main field is to use semiconductor metal oxides...

04 January 2021 1,148 2 View

What is the physical significance of series resistance of a Schottky diode?

Is series resistance a parasitic parameter of the resistance of the semiconductor in a metal-semiconductor contact? Device physics

04 January 2021 5,544 3 View

Websites for virtual lab in semiconductors?

Hello everyone, Because of Covid, now all classes are online. Is there good website that also are easy to use to teach student virtual experiments about PN junctions and semiconductors? Thank...

24 December 2020 6,637 2 View