How can I calculate band gap of CZTS thin film from diffuse reflectance (DRS)?

Prashant Ghediya @Prashant_Ghediya

08 August 2013 1 8K Report

band gap of CZTS film

Sergey Marchenko

You could obtain band gap energy from reflectance using Tauc plot for your sample.

Some information about Tauc plot you could see here: http://www2.shimadzu.com/applications/UV/VIS/A428.pdf

Badges
Science topic

More Prashant Ghediya's questions See All

How can I prevent oxidation of CZTS films and powders when annealed at more than 400 C in Ar atm?

CZTS films and powders are converted into oxides like CuO and SnO2, when annealed at more then 400 C in Ar atm. How to prevent oxidation ?

04 May 2015 559 5 View

How can I get CZTS nanoparticles by microwave-assisted methods without using any capping agent?

For CZTS solar cells.

01 February 2014 1,565 0 View

What is the best way to calculate bang gap of any liquid solution from tauc plot?

Band gap of any liquid

06 July 2013 3,677 4 View

Can someone advise on why and how to measure the baseline in UV-visible spectrophotometer before taking the data in optical analysis?

Optical analysis of thin film

06 July 2013 3,949 8 View

How to measure the electrical conductivity of pallet?

Is it possible to measure the electrical conductivity of ZnS pallet?

05 June 2013 8,250 3 View

How can I find the carrier concentration and effective density of the state in valance band of a CZTS thin film?

Carrier concentration and Nv

01 February 2013 8,183 9 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Why almost every element would be metallized in sufficiently high pressure and low temperature?

(This statement is from wikipedia, BTW). What is so special about metallic bond that is limiting high-P low-T state of a matter (as long as individual atoms exist, not white dwarf of neutron star...

02 March 2021 3,309 2 View

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 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