Dear partners
Does anyone have this book?
quantum theory of the optical and electronic properties of semiconductors 5th edition , hartmut huang and stephan w koch
thanks
Is there a mathematical relation between defect density and temperature? thanks
03 April 2019 2,612 3 View
hi have thermal velocities electron and hole in semiconductors constant? What are they calculated? thanks
01 February 2019 3,256 3 View
hi What is the pressure of plasma for the Titanium Dioxide layer under RF Sputtering?
31 December 2018 8,277 3 View
hi, pleased guide me if i change thickness of different layer perovskite solar cells , or Physical conditions of making layers such as Change in pressure,Change in temperature sunstrate,...
10 November 2018 640 4 View
Hi, I made a thin layer Tio2 in the lab. what methods can now be used to to determine lifetime of the carriers ( e and h ) , their mobility , and the concentration of the carriers ( NA , ND)? thanks
10 November 2018 1,278 4 View
what is stack of HAADF STEM cross section image?
10 November 2018 787 0 View
Hi, I want to use comsol software to simulate provskite solar cells, I dont know what kind of information is needed to simulate different layers and finally extract the best power converting...
10 November 2018 3,643 1 View
Dear colleague Can anyone tell me how to clean ITO coated glass for sputtring magnetron deposition?
09 October 2018 1,854 0 View
hi, Please advise. What is the best conditions for the titanium dioxide coating at what temperatures and under what physical conditions (pressure, ...) is the RF sputtering method? sincerely yours
07 August 2018 5,175 1 View
Advise you. Has anyone simulated Provskite solar cell with Comsol software? What basic information is better to enter in this software? The thickness of the layer?, the temperature substrate?,...
06 July 2018 9,903 3 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
Hi all, my experimental XPS results shown that my C3N5 sample consists of N-H bond, hence in this case I should incorporate the N-H bond into my DFT modelling. However, I do notice several papers...
07 August 2024 8,414 2 View
In order to show people the beauty of control and enhance enthusiasm for learning control theories, are there any good simple systems or platforms to recommend?
05 August 2024 10,034 1 View
Exism movements after gaining power within liberal democracies under majority rule and independent rule of law system become permanent dictatorship threats, but why this is the case is not clear...
04 August 2024 8,125 3 View
Hello everyone I am looking for one or some books for propertes and behaviors of stochastic fibre orientation composites. unfotunately I could not find any suitable reference for thias by...
04 August 2024 3,461 3 View
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
Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...
30 July 2024 8,339 2 View
Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...
30 July 2024 906 2 View
I would like to calculate the formation energy of P2-Na0.67Fe0.5Mn0.5O2 based on DFT, what should I do step by step. Any help would be appreciated. Thanks.
29 July 2024 8,248 2 View
I am editing a book for Springer Nature on recent advancements and future trends in biomaterials for orthopedic and trauma applications, with a publication date slated for early next year. If you...
29 July 2024 5,015 9 View