D. Rajavel et al., PYROLYSIS CHARACTERISTICS OF IODINE PRECURSORS FOR GAS-SOURCE N-TYPE DOPING OF II-VI COMPOUNDS, Journal of crystal growth, 140(3-4), 1994, pp. 327-335
The selection criteria and pyrolysis characteristics of iodine precurs
ors were investigated to determine the best compounds for the n-type d
oping of CdTe during gas source molecular beam epitaxy. Ethyliodide an
d allyliodide were found to have the most suitable properties and to p
roduce iodine dimers for pyrolysis temperatures above 650 and 600-degr
ees-C, respectively. The ethyliodide doping of CdTe was studied and pr
oduced highly conductive CdTe layers with room temperature electron co
ncentrations as high as 3 X 10(18) cm-3 with a mobility of approximate
ly 460 cm2/V . s.