 Bipolar electrochemical etching, BEE, has been developed as a method for creating porous germanium, PGE, layers with precise control over the layers thickness and porosity. This technique allows for the production of large-scale, uniform PGE layers with minimal variation in thickness or porosity. Additionally, the process can be tailored to produce PGE layers with desired properties such as porosities between 40% and 80% and thicknesses ranging from 10 nanometers to 100 nanometers. This article was authored by Tadea's heinous, Javier Ariasapada, Burawi Allahi, and others.