EFFICIENT BORON INCORPORATION IN HYDROGENATED AMORPHOUS-SILICON FILMS BY A NOVEL COMBINATION OF RF GLOW-DISCHARGE TECHNIQUE AND HEATED FILAMENT

被引:7
作者
CHATTOPADHYAY, S [1 ]
DAS, D [1 ]
SHARMA, SN [1 ]
BARUA, AK [1 ]
BANERJEE, R [1 ]
KSHIRSAGAR, ST [1 ]
机构
[1] NATL CHEM LAB,POONA,MAHARASHTRA,INDIA
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 10期
关键词
P-TYPE A-SI; H; HWCVD; DOPING EFFICIENCY; BORON ISOTOPES;
D O I
10.1143/JJAP.34.5743
中图分类号
O59 [应用物理学];
学科分类号
摘要
Boron doped hydrogenated amorphous silicon films were prepared by a novel method involving a combination of plasma chemical vapour deposition (PCVD) and a heated filament. The films were characterized by electrical conductivity measurements. A combination of Raman scattering experiment and infrared (IR) vibrational spectroscopy were performed to study the structural characteristics of the a-Si:H films. Higher conductivities were obtained for the films prepared under the heated filament in comparison to those for the films prepared away from it. It was inferred that growth conditions mainly governed by BH3 radicals led to highly conducting films. For conditions conducive to the production of more atomic hydrogen, SiH3 and BH2 radicals were expected to govern the growth and put the boron atoms into the inactive three-fold coordination.
引用
收藏
页码:5743 / 5750
页数:8
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