Suitable p type dopants for use in the present invention include Group 1 , Group 11 , {TAIL ~ Group} 5 , and {HEAD ~ Group} 15 , with arsenic being preferred 
Suitable p type dopants for use in the present invention include Group 1 , Group 11 , { TAIL ~ Group } 5 , and { HEAD ~ Group } 15 , with arsenic being preferred
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH