Acta Optica Sinica, Volume. 5, Issue 12, 1111(1985)
A simple analytical method for determining the optical gap of amorphous silicon films
For material research and device design of amorphous silicon solar cells, it is required to determine the refractive indices, thickness and absorption coefficients of a-Si films. Taking interferences and substracte effects into account, we propose a simple analytical method that allows us to determine the thickness, refractive index and absorption coefficient of a film from the usual transmittance spectrum at normal incidence. As an example, we calculated the optical gap of a-Si:H and a-SiC:H films.
Get Citation
Copy Citation Text
ZHU WEIJIA. A simple analytical method for determining the optical gap of amorphous silicon films[J]. Acta Optica Sinica, 1985, 5(12): 1111