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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 9,703 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 3,879 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 3,897 6 View
08 August 2019 6,887 2 View
08 August 2019 6,829 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 526 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 3,149 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 828 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 3,866 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 6,882 3 View
07 July 2019 1,616 5 View
The optical band gap is the threshold for photons to be absorbed, while the electrical band gap/transport gap is the threshold for creating an electron–hole pair that is not bound together. The...
07 July 2019 676 9 View
I am planning to do selenization on my semiconductor material which requires selenium in vapor form, but i am worried about its enviromental impact. Can anybody please tell me where can i dispose...
07 July 2019 4,469 2 View
Take GaAs as an example. If we assume there are some deep levels inside the GaAs bandgap caused by point defects, like vacancy or antisite, when strain is applied on it, we know the bandgap will...
07 July 2019 6,846 6 View
I'm wondering how we can calculate the absolute electronegativity of KOH. We can't use the equation of semiconductor to calculate right?
07 July 2019 3,128 4 View
02 July 2019 9,660 5 View
I was looking to see the effect of switching frequency on dc -dc converters. I found a PowerPoint presentation from On Semiconductor indicating that as we increase the switching frequency of the...
26 June 2019 8,899 2 View
how energy transfer from carbon dots to p-type semiconductor decreases band gap?
21 June 2019 6,083 1 View
Does the Auger recombination co-efficient of hole and electron of any semiconductor depends on material only or also on defects?? i.e. Does Auger recombination co-efficient is inherently material...
10 June 2019 7,462 1 View
Is a carbon dots exactly semiconductor or conductor? How can i determine its semiconductor or conductor?
06 June 2019 3,998 7 View
06 June 2019 2,128 1 View
The name "transistor" is said to be obtained from "transfer + resistor". It's a good start point to name it. Nevertheless, I wonder how researchers of today would prefer to name it when they...
06 June 2019 2,234 1 View
I am working with lift off technique with a negative photoresist (AZ nLOF2020) which is a cresol novolak based one. The baking and post-exposure baking are done at 100ºC for 60s and the exposure...
06 June 2019 8,416 3 View
Is the Carbon dots Semiconductor or conductor? please i need explanation
06 June 2019 645 3 View