Who know a society that buy anatase TiO2 thin film?

Hi, I found buying an anatase TiO2 thin film (around 100 nm and 200 nm) deposited on silicon. If anyone have information, please tell me what you know. Best regards. Bouzouraa M.-B.

09 October 2018 8,847 0 View

The Brustein-Moss effect is possible for p type semi-condutor?

Is it possible that Brustein-Moss effect causes the increase of band-gap of p-type semi-conductor? Thanks. Best regards.

02 March 2018 3,829 6 View

What's the relation of bandgap energy of ZnO hexagonal in function of lattice constant?

Hi! In function of temperature, the lattice constant were modified. I want to rely this modification to the redshift of bandgap energy of ZnO. Can you help me !!! Best regards. Bouzouraa Montassar.

09 October 2017 5,332 4 View

In the case of Photoluminescence in UV range, why the ZnO excitonic peaks intensity decrease with temperatures ?

01 January 1970 8,784 2 View

Origin of luminescence in anatase TiO2?

Hi, In literature, they have explicated the origin of luminescence in anatase TiO2 to the self-trapped excitons? What's mean this radiative recombination? In addition, what's the origin of...

01 January 1970 8,032 5 View

In the case of semiconductor, why the gap decreases with temperatures?

I would unterstand why the gap energy of semiconductor decrease in function of temperature!!! This modification is well known and explain by the Varshni formula !! Thanks for your help...

01 January 1970 438 12 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 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

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 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

Why are the modelled and circuit system different in response for controlled buck converter?

[Images are attached at bottom] I am currently working on a buck converter controlled by two different control methods, Reinforcement learning applied to find PID values & a lead-lag...

16 February 2021 5,060 10 View

ZnS oxidizes to ZnO!!why??

when I put my ZnS solution in the chemical bath, the ZnS oxidizes so there are ZnO peaks appearing because of the reaction with the oxygen in the air, despite the fact that I close the beaker...

14 February 2021 5,778 9 View

How do I connect DAB DC DC Converter to a battery in matlab simulation ?

I am trying to model a DAB converter and I need to observe the power transfeered to the load side on varying the phase shift between two bridges, hence I couldnt take a constant load e.g...

09 February 2021 6,489 3 View

Xrd result of ZnO thin film shown better crystallinity at low temperature and the crystallinity decreases as the temperature increased. why?

I have synthesized ZnO thin films at four different substrate temperature say, 300, 350, 400 and 450C. and the samples were annealed at 450C for half an hour. the xrd result shown better...

04 February 2021 7,641 4 View