Additional file 1.

Figure S1. EDS spectrum of the CuInS2 QD-sensitized TiO2 NRA photoelectrode after annealed in sulfur ambiance at 500°C for 30 min. The ratio of Cu/In/S is 1.02:1.00:1.91.

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Zhou et al. Nanoscale Research Letters 2012 7:652   doi:10.1186/1556-276X-7-652