Udayabhanu C Gowda

8 Questions 28 Answers 0 Followers

Questions related from Udayabhanu C Gowda

What is the role of green surfactants (Plant extracts) for the synthesis of Metal oxide nanoparticles?

I was used some plant extracts for the synthesis of metal oxides under the ultrasound irradiation. I got the uniform sized nano particles.

01 January 1970 4,187 4 View

What is the effect, If we use Mn3O4 and Mn2O3 composite material for Li ion battery application?

I have the synthesized manganese oxide material, But the XRD matched with Mn3O4 and Mn2O3. What about the Li ion battery performance, Weather it is good or bad?

01 January 1970 1,442 3 View

Why the crystallinity of metal oxides increases on calcination?

material chemists

01 January 1970 10,046 3 View

How to confirm the dopant? weather it is in crystal lattices or on the surface by XPS?

Dear sir/Madam, I have synthesized the Cu doped TiO2. i got the XPS results. from that the Cu confirmed as Cu (II) state. My question is weather it is in crystal lattices of TiO2 or on the surface...

01 January 1970 4,240 6 View

What is the colour of SnWO4 nanopowder?

I have been synthesizing SnWO4 nano powder with black color. What is the exact color for this compound?

01 January 1970 3,093 7 View

On what basis the semiconductors were named as direct and indirect bandgap semiconductors?

On what basis the semiconductors were named as direct and indirect bandgap semiconductors? What are the properties makes the materials into direct and indirect bandgap semiconductors. Please...

01 January 1970 8,731 10 View

Is TiO2 belongs to direct or indirect bandgap semiconductor?

Weather the TiO2 belongs to direct or indirect band-gap semiconductor?. One of the reviewer mentioned that TiO2 is a Indirect band-gap semiconductor. Please let me know.

01 January 1970 5,639 3 View

Is the Quartz tube allows Visible light radiations?

Is the Quartz tube allows Visible light radiations? or UV radiations? or both radiations? Please let me know.

01 January 1970 4,484 5 View