What is mean by sub-bandgap excitations?

10 October 2016 0 6K Report

In PL measurement, above gap excitation,how to observed sub band structure?

Badges
Science topic

Similar topics
Psychometrics
Measurement

More Urmila Rathod's questions See All

Why metal semiconductor connection show ohmic conduction at particular current?

I have metal (In)/ WS2 connection. At 250 microA it is showing ohmic characteristics. If I apply higher or lower current it does not show any ohmic characteristics?

11 December 2017 9,798 2 View

Can we get sheet resistance from hall measuement?

I have done hall measurement. I used Indium metal contact. But I -v Curve is showing saturation at edge. Is this data reliable . Can I take conductivity vale and measured sheet resistance.?

05 June 2017 8,268 13 View

What information we can get if as deposited and annealed film show different background in Raman Spectra. See attach image

Is it mean something.?

03 April 2017 4,950 1 View

How to know the breakdown mechanisms of MIS structure from the I-V curve?

Here I attach the I-V curve and I want to know the diode is ok or not. Why there is no sharp breakdown in reverse and forward directions?

01 February 2017 2,981 15 View

Can glancing angle XRD performed to any films(textured, amorphous,poly crystalline, and single crystalline)?

I have synthesis 15 nm film on quartz substrate. I have used Receiving slit (in plane). Does it gives all peaks from plane normal to the incident beam or it will give all possible peak? I always...

31 December 2016 985 4 View

How to know film is poly crystalline or textured from XRD data? I have attach my XRD file here

I have attach the scanning parameter and resulting data.

31 December 2016 2,528 3 View

How to deconvolucate the raman data?

I am not getting peak matching after using Gaussian functions. I have followed origin pro 9 tutorial but I am not able to find the error. Only one peak is matching

02 March 2016 4,263 5 View

Why does my protein refolded to beta sheet during thermal denaturation analysis?

Hi! So i attempted to understand a novel protein behavior towards heat application by analyzing its secondary structure change. I subjected the protein to a thermal denaturation analysis using...

06 August 2024 1,989 3 View

How does one derive the standard deviation of a scale?

Dear all, I am working on analyzing data from a survey on student satisfaction. The survey contains items with a 7-point Likert response format that produce 12 scales related to different areas...

05 August 2024 2,141 4 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Why is nonpoint source pollution potentially more harmful and difference between point and nonpoint sources of water pollution?

01 August 2024 1,180 2 View

How do living organisms play a role in the water cycle and why is nonpoint source pollution potentially more harmful than point source pollution?

01 August 2024 7,061 2 View

How does nonpoint source pollution affect ocean environment & why point source pollution is often easier to manage than nonpoint source pollution?

How does nonpoint source pollution affect the ocean environment and why point source pollution is often easier to manage than nonpoint source pollution?

01 August 2024 8,014 2 View

¿Are oxygen vacancies in semiconductors capable to change the band gap?

Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...

30 July 2024 8,339 2 View

What is the relationship between protein structure and N or C terminal tagging choosing?

I want to do 2,3-butanediol dehydrogenase(BDH) enzyme purification to confirm its activity for 2,3-butanediol. Before that, I need to confirm which N or C terminal tagging is better for enzyme...

28 July 2024 366 3 View

Why specific capacitance is not proportional with the specific surface area?

Dear researchers, Why specific capacitance is not proportional to the specific surface area? I have material A with a surface area higher than material B, but material B is showing little bit...

26 July 2024 9,156 2 View

Does post-translational protein modification cause devisions on observed pI verses calculated pI?

In running two-dimensional gel electrophoresis on bacterial protein, some spots that appear to match a protein sequence have a significantly more acidic isoelectric point than the calculated pI....

24 July 2024 8,076 3 View