Optical Absorption in Nano-Structures: Classical and Quantum Models

Table 1

Radiative lifetime of lowest optically active excitons.

System	𝜀1(0)	𝜂	𝐸𝑏 (ev )	𝜆𝑓 (nm)	𝑚^∗𝑒	𝑂𝑠	𝜏 (𝜇s)
Si11-a	1.5	1.2	0.1655	2.55	1.92	0.016	0.152
Si11-b	1.5	1.2	0.2068	3.457	0.58	0.003	0.198
Si11-c	1.5	1.2	0.188	3.1	0.91	0.233	0.004
Si22	3	1.7	0.1314	4.216	0.71	0.051	0.022
Si33	5	2.4	0.1095	5.08	0.58	0.0014	0.955