Please, What is the relationship between crystalline size and the band gap of materials?
In principle, the band gap of a material increases when the grains size decreases (blue shift). See for example:
doi: 10.1021/jp207237dd
or: J Phys Chem 90, 2555 (1986)
Dear David,
I could not find it. Please send it for me or give some more information about it.
Best regards,
Hamed
Dear Hamed,
you can find the direct link to these two papers here:
Article Controlling the Band Gap of ZnO by Programmable Annealing
Article Electronic Wave-Functions in Semiconductor Clusters—Experime...
regards,
David Berardan
When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...
28 February 2021 2,133 3 View
We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...
28 February 2021 1,149 1 View
Hi, I am doing a review and hopefully meta-analysis for my Master thesis but I have the following problems: - Some studies only give the difference between end trial and baseline data and other...
22 February 2021 1,115 4 View
In my opinion, the RG site is useful in solving scientific problems and shows the researcher's ability. Besides, the separation of the H-index from the self-citations and the overall index is an...
22 February 2021 3,894 6 View
Hi, i am conducting a Monte Carlo simulation for my new distribution but the MSE values are increasing while the sample size increase, does any experience this issue before and what should i do...
22 February 2021 3,680 4 View
I have a basic knowledge on Python, R and MATLAB in analysing data. Among those, which is the best and user friendly? Which one should I learn deeply to analyse data?N:B: I want to learn data...
20 February 2021 3,950 15 View
the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please
16 February 2021 8,801 3 View
We collected faecal samples from various species that we want to analyse their microbial communities' DNA via Next-Generation Sequencing. The problem is that due to budgetary constraints, we will...
16 February 2021 5,466 4 View
When you use RNAseq I understand that it must follow certain conditions when you use it. One of them is the insertion of a polyA tail. The insertion of the polyA must include then...
05 February 2021 3,770 4 View
Dear all, I am trying to optimize a bimetallic complex using # opt=tight b3lyp/lanl2dz scf=qc geom=connectivity. The program is running for around 5 days but the size of the .chk remains same...
05 February 2021 8,721 3 View
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
25 February 2021 5,713 1 View
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
I am attaching my design and result of Gains.S11 parameter is less than -10dB from 3.1 to 9.8 Ghz.Z11 magnitude also lies between 40 -60 ohm for this range .Still gain is negative. Pls help
29 January 2021 4,334 3 View
If the intensity of two peaks in the X-ray pattern is the same, which peak is used to calculate the crystalline size in the Scherer formula? and why?
26 January 2021 5,043 5 View
In order to enhance the antenna parameters, meta-material unit cells are added but where to load them is more advantageous either at ground plane or at the patch side, also is it necessary to add...
24 January 2021 2,999 4 View
Hello, Due to project internal reasons I can only obtain samples (multi-oxide systems) having a volume being to small for a quantitave XRD analysis. Is it correct to fill up the sample with a...
15 January 2021 8,389 5 View
The observed bandgaps are 3.8 eV and 3.4 eV for spin-coated and electrospun films, respectively. What are the possible reasons?
08 January 2021 5,646 6 View
I am looking for methods to calculate the band potential of ZnFe2O4 and Fe2O3.
05 January 2021 6,416 2 View
If you have any paper about types of injective modules and applied with GAP programming, please send me to the Email: [email protected]
28 December 2020 9,521 2 View