Table 1.

Summary of wave-interference based light-trapping optimization in 3–20 μm-thick inverted pyramid PhC solar cells.

H(μm)	a(nm)	MAPD corresponding to Lambertian limit (mA/cm2), 300–1200 nm range	MAPD of inverted pyramid PhC solar cell (mA/cm2), 300–1100 nm range	MAPD of inverted pyramid PhC solar cell (mA/cm2), 1100–1200 nm range	Total MAPD of inverted pyramid PhC solar cell (mA/cm2), 300–1200 nm range
3	1300	36.64	39.05	0.31	39.36
5	1800	38.03	40.93	0.63	41.56
7	2100	38.85	41.81	0.98	42.79
10	2500	39.63	42.50	1.09	43.59
12	2700	40.01	42.75	1.24	43.99
15	3100	40.44	43.03	1.36	44.39
18	1900	40.78	43.11	1.34	44.45
20	2900	40.97	43.12	1.39	44.51

The inverted-pyramid PhC solar cells are assumed to have dual-layer ARCs with n₁ = 1.4, t₁ = 45 nm, n₂ = 2.6 and t₂ = 100 nm. Each of our inverted pyramid photonic crystals, optimized through stable and accurate solutions of Maxwell’s equations, has MAPD considerably above the Lambertian limit.