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Fabrication of Undoped and N+ Microcrystalline si Films Using SiH2Ci2

Published online by Cambridge University Press:  15 February 2011

Jae Seong Byun ,
Hong Bin Jeon ,
Jung Mok Jun ,
Jae Ho Yoo ,
Kyung Ha Lee ,
Min Park  and
Jin Jang
Jae Seong Byun
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Hong Bin Jeon
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Jung Mok Jun
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Jae Ho Yoo
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Kyung Ha Lee
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Min Park
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
Jin Jang
Affiliation:
Department of Physics, Kyung Hee University, Dongdaemoon-ku, SEOUL 130–701, KOREA.
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Abstract

We have studied the growth of undoped and n+ μc-Si:H (:CI) films by Remote Plasma CVD using SiH4/SiH2Cl2/H2/He mixtures. It was found that the μc-Si film can be fabricated by increasing flow rate of SiH2Cl2 and/or H2. The deposited undoped μc-Si film exhibited a maximum crystalline volume fraction of 85 %, obtained from Raman spectroscopy. The n-type μc-Si film, deposited with SiH4/SiH2Cl2/H2/PH3/He mixtures, shows a room temperature conductivity of 2 S/cm, conductivity activation energy of 29.8 meV and optical band gap of-2.0 eV. The optical band gap of n-type μc-S1 deposited using SiH2Cl2 is much higher compared to conventional μc-Si film.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 377: Symposium A – Amorphous Silicon Technology 1995 , 1995 , 75
Copyright
Copyright © Materials Research Society 1995

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References

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