I want to know the answer to the following question:
What oxide materials use hydrogen as an electron donor?
All the background I'm provided with is that "It is also a potential electron donor in various oxide materials, including ZnO, SnO2, CdO, MgO, ZrO2, HfO2, La2O3, Y2O3, TiO2, SrTiO3, LaAlO3, SiO2, Al2O3, ZrSiO4, HfSiO4, and SrZrO3.". Is that enough to answer the question?