D. Dimovamalinovska et L. Nedialkova, INFLUENCE OF GE CONTENT ON VIBRATIONAL AND OPTICAL-PROPERTIES OF ALPHA-SI1-XGEXH THIN-FILMS, Solar energy materials and solar cells, 31(2), 1993, pp. 283-289
The effect of Ge on the optical gap and network short-range order in a
lpha-Si1-xGex:H alloys has been obtained by optical-absorption and Ram
an-scattering measurements. A comparison of the correlation between Ra
man Si-Si transverse optical (TO) peak width and the optical gap for f
ilms with different Ge concentration (0.16 < x < 0.4) allows a separat
ion of the roles of Ge-induced bond angle disordering and alloy energy
band changes.