Marco Antonio Uscanga Olea

6 Questions 1 Answers 0 Followers

Questions related from Marco Antonio Uscanga Olea

¿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...

31 July 2024 8,309 2 View

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

30 July 2024 2,121 1 View

Which range of pore size is suitable for a glass frit to be used as a membrane in a reference electrode ?

Dear all! I think the main functions of pores are to avoid the contact of the two different liquids and just allow the passage of ions, so I think the pore size should be small enough to...

02 October 2023 6,055 2 View

What is the maximal temperature BDD electrodes can withstand without losing their properties?

Dear all: I want to put a graphene oxide film on top of a BDD to make the thermal reduction of that GO film. Therefore, I need to know what is the maximal temperature BDD electrodes can...

21 April 2023 7,741 2 View

Why oxygen vacancies are black and increase DOS and conductivity ?

Dear colleagues: When metal oxides and graphene oxides are reduced electrochemically, the more negative the reduction potential, the more black they get. In addition, what is the relationship...

21 July 2022 4,863 3 View

How can I get the electrical conductivity or resistivity of usual semiconductor materials ?

Dear colleagues: I need the electrical conductivity or resistivity of the following photocatalytic semiconductors and the following Heterostructures (made of two or more semiconductors joined...

07 July 2020 2,280 1 View