Figure 5.

SEM images of CuInSe2 nanoparticles synthesized at (a) 180 °C and (b) 220 °C for 24 h, respectively. SEM images of CuInSe2 nanoparticles prepared at 200 °C for 24 h with the concentration of starting materials decreased to that of half (c) and one-third (d) of the typical synthesis

Chen et al. Nanoscale Research Letters 2009 5:217-223   doi:10.1007/s11671-009-9468-6