Numéro
J. Phys. Colloques
Volume 42, Numéro C4, Octobre 1981
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors
Page(s) C4-209 - C4-212
DOI https://doi.org/10.1051/jphyscol:1981443
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors

J. Phys. Colloques 42 (1981) C4-209-C4-212

DOI: 10.1051/jphyscol:1981443

STRUCTURAL MODEL OF FLUORINATED AMORPHOUS-SILICON (a-Si : F)

H. Matsumura1, K. Sakai2, Y. Kawakyu2 and S. Furukawa2

1  Department of Applied Electronics, Tokyo Institute of Technology, Nagatsuda, Midori-ku, Yokohama 227, Japan
2  Department of Applied Electronics, Tokyo Institute of Technology, Nagatsuda,, Midori-ku, Yokohama 227, Japan


Abstract
A structural model for fluorinated amorphous-silicon containing no hydrogen (a-Si : F) is presented based on the experimental results of transmission electron microscopic measurement, infrared absorption and Rutherford backscattering measurements and their changes due to chemical etching. It is concluded that a-Si : F consists of many amorphous-silicon grains of about 40 Å in size, grain boundaries are filled by SiF4 molecular gas and that the enlargement of grain size is a key factor to improve properties of a-Si : F such as photoconductivity.