Germanium oxide removal by citric acid and thiol passivation from citric acid-terminated Ge(100).


Many applications of germanium (Ge) are underpinned by effective oxide removal and surface passivation. This important surface treatment step often requires H-X (X = Cl, Br, I) or HF etchants. Here, we show that aqueous citric acid solutions are effective in the removal of GeOx. The stability of citric acid-treated Ge(100) is compared to HF and HCl treated… (More)
DOI: 10.1021/la503819z