Fig. 1. Structural design of one-dimensional grating at rear surface of thin film silicon solar cells

Fig. 2. Structural designs of continuous one-dimensional gratings with the triangle shapes of (a) right triangle, (b) general triangle and (c) isosceles triangle, respectively

Fig. 3. Rear surface reflectance of the cells with different structures of continuous one-dimensional gratings

Fig. 4. Rear surface reflectance of the cells as a function of the inclination angle θ for the continuous one-dimensional grating structure with the triangle shape of isosceles triangle

Fig. 5. Rear surface reflectance of the cells as a function of the grating period d for the continuous one-dimensional grating structure with the triangle shape of isosceles right triangle

Fig. 6. Rear surface reflectance of the cells as a function of the grating separation b for the discontinuous one-dimensional grating structure with the triangle shape of isosceles right triangle

Fig. 7. Rear surface reflectance of the cells as a function of the grating period for the discontinuous one-dimensional grating structure with the triangle shape of isosceles right triangle. The grating period (d+b) is (a) 1000 nm, (b) 900 nm, (c) 800 nm and (d) 700nm, respectively