Figure 5.

Electrochemical impedance and Raman spectra of HBH solar cells and film. Electrochemical impedance spectrum of CdTe NT/CdSe QD HBH solar cells (a) and Raman spectrum of NT/QD HBH film (b). The insert in (b) shows the enlarged signals from 150 to 220 cm-1.

Tan et al. Nanoscale Research Letters 2013 8:434   doi:10.1186/1556-276X-8-434
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