Dear Maria, please, is it a new project ?

More Nabil Khelifati's questions See All

What is the simplest technique used for protecting one side of Si wafer against etching by NaOH or KOH solution?

POCl3 emitter is formed on both side of Si wafer after P-diffusion process. This step yields n+pn+ structure. I would like to know how I can protect the emitter on the front side of wafer, using a...

10 November 2018 8,395 11 View

In which case a SIMS depth profile shows zero concentrations, is this possible?

I performed some SIMS analyzes of 52Cr and 55Mn in c-Si (in profile mode). The sent findings showed zero concentrations. Please, is it possible to get by SIMS a zero signal "zero counts per...

11 December 2016 2,937 12 View

What are the key parts of a photoluminescence (PL) equipment used in the study of defects in silicon ?

I'm looking for a collaboration with specialists in PL spectroscopy field. My email is: [email protected]

04 May 2016 9,477 2 View

Does anyone have reference(s) that show QSSPC carrier lifetime curves with associated surface recombination velocitiy measured by another technique?

The results will be used just for comparison. Thank you !

11 December 2014 517 0 View

Very interesting, is it a new project ?

Dear all, I'm very attracted by your project, especially because it aims the fabrication of PERT bifacial solar cells. So, please, let us know in which context you created it and what is the...

01 January 1970 9,076 4 View

How can we distinguish between solar grade silicon (SoG-Si) and metallurgical grade silicon (MG-Si)?

I have multicrystalline silicon wafers (mc-Si), and I do not know their grade. Is there a simple method that can be used to classify this material? The minority carrier lifetime measurement, is it...

01 January 1970 8,002 4 View

What are the main aims of your project?

I'm working on the defects control in mc-Si during process fabrication of the solar cell, using in particular gettering technique. So, I find your project interesting. Please Dr Schmidt, could you...

01 January 1970 7,996 4 View

Is there any way to quantify bacterial and fungal cells in their mixed culture?

I am working in fungal fermentation of soybean meal and there is bacterial growth in them at times. I am trying to quantify fungal cell counts and bacterial cells; but I haven't been able to do at...

07 August 2024 7,535 4 View

Stability of the Solar System: Insights from Einstein’s Equations ?

The stability of the Solar System is a complex subject that blends the classical framework of Newtonian mechanics with the modern insights provided by General Relativity (GR). Understanding this...

07 August 2024 2,569 1 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How much total RNA concentration to be extracted from sorted plasma cells from bone marrow of C57BL/6 mice for RT-PCR ?

i have sorted anti-NP specific plasma cells from bone marrow of C57BL/6 mice at certain times after immunization with variable counts and isolated total RNA using TRIZOL method for RT-PCR using...

05 August 2024 8,835 1 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

In the presence of VERY high concentration (1000 ppm) of silicon, the adsorption isotherms of arsenic are showing anomalous trends, why so?

I conducted an adsorption experiment of arsenic on soil in the presence of different doses of silicon as competing ions to see the effect of silicon on arsenic adsorption and desorption. I took 5...

03 August 2024 6,500 3 View

Does continues partial charging/discharging do any harm to the BESS performance and degradation?

For a grid connected BESS (lets say 100 MW/200 MWh system, LFP battery), if we charge the BESS in such a way that whenever we can access power from the solar that will charge the BESS. Hence it...

01 August 2024 9,903 7 View

How can I get my Granzyme B flow cytometry stain to be consistent?

I have used PE and PE-Dazzle 594 fluorochromes and have managed to get NK cells to properly show GranzymeB expression after 4 hr PMA/ionomycin stimulaton, but for some reason my CD8 cells in the...

01 August 2024 7,677 2 View

Best mask design for metal deposition aiming build a Perovskite solar cell device?

What types of mask designs for metal deposition, to be used in a PVD system, are best suited for perovskite-based solar cells?

31 July 2024 4,835 3 View