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Hello I want to know, how to chose appropriate semiconductor material for QD synthesis? it is base on bandgap? or something else? how scientists know that the I-III-VI elements (for example) are...
08 November 2019 870 2 View
I want different new ways for this subject.
07 November 2019 8,146 2 View
I want to select a photo-catalyst which is most suitable for Hydrogen production from water splitting. like TiO2, ZnO, CdS, N-ZnO-gC3N4 or any other composites which give us best results for...
07 November 2019 1,202 7 View
I hve prepared a Doped Zno with diff conc. For photodegradation of a phenolic pollutant I got absorbance value higher. Is it mean that it can't be used for it or I should try something else
05 November 2019 3,863 4 View
I have a nanocomposite with three phases, i.e. Al2O3, TiO2, and Al2TiO5. I want to determine the band gap of this mixture. Is it true to report different band gap values for each phase or should I...
29 October 2019 6,006 2 View
how can i to calculate the alignement as function mobility of a ternary semiconductor InGaN as afunction of Induim molar fraction x?
23 October 2019 4,174 3 View
There could be a possibility to create chanels for elections and holes in metals upon excitation with light.
10 October 2019 8,454 2 View
10 October 2019 7,055 5 View
I am trying to etch Si with DRIE tool. I should etch it only for less than 700nm. I also need to have have rough surface. Any recommendations to increase the surface roughness?
10 October 2019 3,084 3 View
I have a three-electrode cell setup for photocatalytic hydrogen production by water splitting. FTO coated with organic photocatalyst as WE, Pt wire as CE and Ag/AgCl as RE. In my...
19 September 2019 7,773 4 View
For metal-oxide dielectric-semiconductor Schottky diode and metal-semiconductor Schottky dioode, I found that the turn-on voltage of the former was much larger than that of the latter. Is it due...
09 September 2019 8,520 4 View
How can improve the sensitivity of semiconductor metal oxides with suitable dopants for CO2 sensing? Does metal dopants like Au, Ag, Pt and Pd able to improve response and recovery time for CO2...
09 September 2019 8,823 4 View
We are having a very difficult time trying to obtain uniform deposition of Au by electroplating in selective areas. We use TSG-250 solution. Looking for some positive inputs from experienced...
09 September 2019 9,029 4 View
I have examined two compounds band gap having same pyrochlore type structure but one contained carbonate group in the vacant place of pyrochlore structure having negative band gap (-0.22 eV) but...
09 September 2019 4,546 3 View
Hello , I'm wondering to know the easiest method to calculate the ideality factor for my perovskite semiconductor . I've seen couple of paper using light intensity Vs Voc to estimate the...
21 August 2019 9,780 2 View
Dear community. As far as I understand, the dielectric confinement problem is scale invariant, while the quantum confinement problem has a length scale defined by the Bohr radius. I have been...
13 August 2019 3,945 4 View
I am working on an example for InAs. The ultimate goal is to study the thermal properties from the phonons. But first, I must optimize the structure with VASP. It seems like a very easy...
08 August 2019 4,002 6 View
08 August 2019 6,951 2 View
08 August 2019 6,915 5 View
Can anybody know how to get the band gap from the UV-Vis-NIR spectrum? For most of semiconductors, the UV-Vis-NIR spectrum has one absorption peak; so I can calculate the band gap based on a N...
08 August 2019 596 3 View
I have doped Cr, Mn, Co, Ni and Cu in bilayer MoS2 but the band gap reduces after Cr and Mn doping, and other three elements (Co, Ni and Cu) convert the semiconductor into metal. can anybody tell...
09 July 2019 3,288 4 View
Degenerate semiconductor materials tend to act more like a metal than as a semiconductor due to high doping. (for both cases: p- and n-type degenerate semiconductors). For instance, Indium Tin...
07 July 2019 941 3 View
hello respected members, my Raman peaks are 368, 484 1027, 1351, 1596, and 1629 cm-1, i am not sure that how to relate this with my topic ie organic semiconductors?
07 July 2019 3,933 6 View
Hi everyone!! I am trying to measure a frequency response of the sample by using a small signal vibrator and Keithley Semiconductor analyzer. After certain amplitude, I always observe another...
07 July 2019 6,962 3 View