Schematic of LSPR light trapping, UV-vis absorption spectra, and PL spectra. (a) Schematic of LSPR light trapping for a hybrid system of ITO/CIGS/P3HT:PCBM in which the CIGS nanoparticles are embedded between the ITO substrate and P3HT:PCBM photoactive layer. (b) The UV-vis absorption spectra of ITO/CIGS, ITO/P3HT:PCBM, and ITO/CIGS/P3HT:PCBM. (c) The PL spectra of ITO/P3HT:PCBM and ITO/CIGS/P3HT:PCBM.
Zhao et al. Nanoscale Research Letters 2014 9:308 doi:10.1186/1556-276X-9-308