Arsenic doping methods

First, Newman s method was applied to yttrium phosphate, arsenate, and vanadate doped with Eu3+ (Table 9). The best results were obtained with t4 = t6 = 8. 

Sihcon metal of the highest degree of purity is used in solar cells, a new ecofriendly energy source. Sunlight can be converted to electricity in thin-fihn photovoltaic modules of sihcon deposited on titanium dioxide. Another method is to use a wafer, composed of a layer of silicon doped with arsenic (an n-type semiconductor) combined with a layer doped with boron (a p-type semiconductor). When exposed to sunhght electrons flow between the p- and n-layers and thus an electric current is generated. 

---