Figure 4.

UV–vis absorption spectrum of the ITO/nc-TiO2, ITO/nc-TiO2/CdS(5), and ITO/nc-TiO2/CdS(n)/P3HT:PCBM films (n= 0 and 10).

Chen and Li Nanoscale Research Letters 2013 8:453   doi:10.1186/1556-276X-8-453
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