Angel Luis Alvarez

4 Questions 18 Answers 0 Followers

Questions related from Angel Luis Alvarez

Commercial n-doped single layer graphene?

Is it possible to by single layers of n-type graphene (commonly nitrogen-doped)? I've been reviewing this issue in internet, and I find that certain companies (Sigma-Aldrich, etc) provide...

05 July 2021 5,961 4 View

In common thermal evaporators, why do baskets become so fragile after aluminium evaporation, while at the same time accumulating a whitish residue?

I use a commercial thermal evaporator to deposit aluminium contacts on samples through conveniently located shadow masks. During the process of evaporating aluminium we have found that the baskets...

21 November 2018 6,085 8 View

COMSOL Multiphysics: How can I manage individual cell values of a mesh in a convergence process?

Using the module Semiconductors for computing electric potential in a certain geometry, sometimes during convergence process one can observe how few cells of the mesh close to both exterior limits...

03 May 2014 9,006 1 View

In the module "semiconductors," how can I manage simultaneously insulating and semiconductor materials?

When I add the option "space charge conservation" included into the module "semiconductor", and assign a specific domain (characterized by a insulating material) to this option, I can compute the...

30 March 2014 4,386 10 View