25 Questions 77 Answers 0 Followers
Questions related from Abbas Rahdar
I want to dissolve ZnO nanoparticles in water, compeletly, but it is not possible. please advice me about this case. please suggest me another solvent along with water. Thank you due to kind...
04 April 2017 3,221 3 View
Thanks in advance for your replies.
12 May 2015 5,286 3 View
Thank you.
15 February 2015 2,837 6 View
Is the absorption in bulk metals stronger than semiconductors , or vice versa ?how about the emission ? Why ?
23 January 2015 5,973 6 View
Is it logical that I observe the x-ray peaks in 20 degree while i use from the GIXRD (low-angle ) for thin film structural study? why ?
15 January 2015 8,301 25 View
Why the hardness may start to decrease when the grain size is below 10 nm in Nano crystalline film ?
11 January 2015 6,617 9 View
What is difference between Hall-Petch and reversed Hall-Petch ?
11 January 2015 7,455 2 View
why the hardness can be further enhanced in the nanocomposite coating design even though the Nano crystalline size is below 10 nm ?
11 January 2015 5,725 2 View
As size change from bulk to nanoscale ,orbit moment increase or spin moment ?
07 January 2015 3,130 1 View
As we know band gap is a forbidden region of energy for carriers but why does create the donor and acceptor levels in forbidden region ?
07 January 2015 7,674 3 View
In the doping, if the impurity atoms size lower the host atoms size ,change in peaks intensities or shifting in X-Ray peaks?
05 January 2015 4,116 3 View
is equal The number of X-Ray peaks in XRD and the number of rings in the electron diffraction pattern by TEM for a same polycrystal thin film/powder sample?
02 January 2015 7,375 6 View
In the doping , if the impurity atoms size higher the host atoms size ,shifting in X-Ray peaks ? or it depend on the dopant concentration also?
30 December 2014 8,255 18 View
Do the XRD peaks of a crystalline shift to the high or low 2θ direction by doping? In other words, does the doping lead to XRD peaks shifting or change in the peaks intensity?
30 December 2014 6,465 5 View
I want to take SAED,did a selected-area aperture locate in the image plane of the objective lens or in the back focal of the intermediate lens ?
28 December 2014 8,377 2 View
What is the Preferred Orientation role in peaks shifting in the XRD?
20 December 2014 9,031 6 View
is it possible identify defects( (point (vacancy) ,linear (dislocation),planar (grain boundary)) with HRTEM ? TEM? STEM?
19 December 2014 7,927 12 View
can anyone tell me about residual stress role in shift the diffraction peak position in XRD?
03 December 2014 7,977 14 View
Why are we likely to overestimate the weight fraction of Ni from the WDS spectrum of a specimen containing Ni and Ag?
01 December 2014 3,957 1 View
can anyone help with lattice parameter difference in surface and bulk due to reconstruction?
14 November 2014 6,618 6 View
In Mie Theory, when the size of the particle is much smaller than the wavelength of the incident light, the nanoparticle experiences a field that is spatially constant, but with a time dependent...
12 November 2014 2,479 4 View
can we take SEM/TEM/AFM image from o/w or w/o microemulsion?
27 October 2014 8,609 1 View
Please answer based on Bragg's law.
21 October 2014 4,351 2 View
How small is a small angle in the TEM and why are scattering angles in the TEM usually this small?
17 October 2014 4,683 3 View
In the other words, suppose the CuCl2 volume is 50 ml ,So for x=0.00 ,1.oo ,2.00 , how much CuCl2 need in ml,respectively?
26 September 2014 287 3 View
