Is the number of publications an unequal indicator of the scientific development of a country?

It is important for a developing country to be sure that it must stimulate the production of scientific articles as a way to reach a more wealthy population.

09 October 2019 8,629 4 View

Usurpation of authorship, how to solve it?

I observe that in several of my publications appear authors who, coinciding initials and surnames, usurp (voluntarily or not) authorship of other colleagues. How to solve this problem in honor of...

04 May 2018 811 1 View

It is posible to obtain a difference of 1.5 eV in the band gap between bulk and thin film samples?

We prepared thin films (30 nm) of Cu3NbSe4 and the measured direct band gap is around 1.5 eV higher than that obtained for bulk samples.

03 April 2016 3,379 9 View

Is there a new procedure to obtain high purity silicon (99.99%) in a single step from sand?

In recent days, economic internet web pages has been announced that a new very cheap procedure to obtain high purity silicon from sand will end the use of oil as energy source.

11 December 2015 1,871 3 View

Would anyone like to establish a collaboration with a semiconductor laboratory in the field of thin films?

31 December 2014 475 21 View

Why does reentrant spin-glass transition precede superconductivity in some semiconductor alloys?

We are observing supercondutivity in semiconductors alloys of the type (CuInTe2)1-x(TaTe)x and (CuGaSe2)1-x(FeSe)x after freezing of magnetic clusters (reentrant spin-glass transition).

04 May 2014 9,846 3 View

It is possible "to see" the size of magnetic clusters using microscopy techniques?

We have prepared semiconductor alloys whose magnetic behavior can be explained by the presence of magnetic clusters

10 November 2013 5,498 1 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How can we limit artifacts caused by rotation in fiber photometry?

We are trying to run fiber photometry experiments for long time scales, but we get these sinusoidal artifacts that come up. We think they may be caused by twisting of the fiber optic subject...

25 February 2021 568 1 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

Is is possible to pole with corona poling pellets of the sample material instead of thin films?

As it is highly probable that pellets will have a higher degree of air gaps and voids than thin films, is it possible to pole the samples with corona poling nevertheless? Or is there the...

24 February 2021 1,349 1 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View

How to improve the adhesion between germanium and silicon monoxide thin film layers using EBEAM evaporation?

I want to deposit multilayer coating of germanium and silicon monoxide on silicon wafer using ebeam evaporation?

21 February 2021 2,141 3 View

How can I measure the thickness of thin layers deposited on textured glass susbtrates?

I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.

21 February 2021 5,465 4 View

How do I calculate absorption coefficient of my thin film if I dont know the thickness? Or how can I calculate the thickness of my sample?

I have done Uv-vis characterisation of my thin film and have received absorbance and transmittance data. Now I want to calculate the absorption coefficient but I dont know the thickness of my...

21 February 2021 7,148 8 View