Figure 5.

FTIR of CIGS NCs (a) and I-V characteristics of photovoltaic devices (b) with and without pyridine treatment. (a) CIGS NCs unrefluxed and refluxed by pyridine; (b) photovoltaic devices with and without pyridine treatment. (OLA, oleylamine; PYR, pyridine).

Yen et al. Nanoscale Research Letters 2013 8:329   doi:10.1186/1556-276X-8-329
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