中国物理B ›› 1995, Vol. 4 ›› Issue (7): 531-535.doi: 10.1088/1004-423X/4/7/007
罗晋生1, 严北平2, 章其麟3
YAN BEI-PING (严北平)a, LUO JIN-SHENG (罗晋生)b, ZHANG QI-LIN (章其麟)c
摘要: Heavily C-doped GaAs films, grown by metalorganic chemical vapor deposition with CCl4 as external carbon source, have been studied by Hall-effect measurements, high-resolution double-crystal X-ray diffraction, and secondary-ion-mass spectroscopy (SIMS). Comparison among X-ray diffraction and Hall-effect measurements and SIMS results indicates that carbon is preferentially incorporated as acceptor on As lattice sites and electrical activation rate achieves 100%. There is no evidence of carbon incorporated on Ga sites as donors and incorporated on interstitial lattice sites.
中图分类号: (Nucleation and growth)