Nurul Islam

6 Questions 23 Answers 0 Followers

Questions related from Nurul Islam

What is the meaning of negative activation energy?

I am prepared (Al, Co) co-doped TiO2 thin films by spray pyrolysis technique. The electrical measurement was performed by the four-probe point method, in the range of temperature 3ok (Room...

10 October 2019 4,154 5 View

What is the difference between Homojunction and Heterojunction?

I am prepared in the spray pyrolysis technique Al-doped TiO2 thin films samples. Al is a p-type doped and TiO2 is an n-type semiconductor. N-types and P-types channels will occur in our...

04 April 2019 7,091 12 View

What is the exact value of poissions ratio for excellent thin film formation?

Dear all, I have done mechanical properties of oxide based compound TiO2 . The calculated poissions ratios value is 0.25. How i identifiy the correct poissions value? Please suggestion in this...

11 November 2018 6,999 5 View

What peak is mainly dominate photo-catalyst activity of Titanium dioxide?

Hi, I am currently working on titanium dioxide thin films which are growned on glass substrate. TiO2 has several peaks (101), (004), (200), (105), (211), (204), (116). What peak is mainly dominate...

11 November 2018 9,086 1 View

How can i get correct cutoff energy and K-points from the optimize curve?

Dear All, I have done convergence test for my compound. The plot of final energy vs cutoff energy and k-points is as attached file below. Here i am confusing that which value i should take as...

10 October 2018 5,669 2 View

How can i get correct band gap from the band structure?

Dear All, I have done band structure for my compound. The plot of K-points vs Energy E. Here i am confusing which value should take as correct band gap energy Thanking in advance for yours...

10 October 2018 7,858 3 View