Bazlul Karim

5 Questions 14 Answers 0 Followers

Questions related from Bazlul Karim

Which one is more efficient, transient photo-current or time resolved photo-luminescence to measure the minority carrier life time in a semiconductor?

Minority carrier lifetime is a very important parameter for optoelectronic materials used for different photonic devices, such as solar cells or light emitting diode. It is observed that both the...

06 June 2019 6,330 4 View

How photo luminescence (PL) can be used to measure the absorption coefficient of a semiconductor film?

What are the procedures to obtain optical absorption coefficient from PL data of a given semiconductor film? How PL data differs from the UV-Vis-NIR absorption spectroscopy data? Which one is...

03 March 2019 6,395 6 View

Can anyone tell me what is the band gap energy of Zinc selenite (ZnSeO3) with proper references please?

What is the band gap energy and band structure of the metal selenite namely, ZnSeO3? Does it have any semiconductor property?

11 November 2017 8,504 2 View

Is there any co-relation between band gap energy and defect states (reside within the band gap) in a semiconductor material?

Does narrowing or enlargement of band gap energy of a semiconductor material due to different processing conditions like annealing, doping etc have any impact on the defect states (interface, deep...

06 June 2017 8,369 9 View

Is absorption co-efficient synonymous to photo-sensitivity of a semiconductor material especially when it is grown in polycrystalline thin film form?

What could be the possible reason(s) if it is observed that optical absorption of a polycrystalline thin film is increased after annealing, but the photonsensitivity of the material diminished...

06 June 2017 3,072 5 View