Table 1.

Impurity levels in the doped ingots determined by GDMS analysis. Data for CdTe:P, CdTe:As, and CdTe:Na are shown in order from left. The units are PPB.

Elements	Top	Bottom	Elements	Top	Bottom	Elements	Top	Bottom
C	400	310	C	410	310	C	390	300
N	20	20	N	20	20	N	20	20
O	700	810	O	720	790	O	700	710
Na	20	140	Na	30	130	Na	7100	8000
Mg	40	30	Mg	40	30	Mg	40	30
Al	10	10	Al	10	10	Al	10	10
Si	10	20	Si	10	20	Si	10	20
P	17,000	18,000	P	80	60	P	80	60
S	30	30	S	30	30	S	30	30
Cu	40	80	Cu	30	70	Cu	30	70
As	40	50	As	22,000	23,000	As	40	50