fig5
![Ternary organic solar cells featuring polythiophene](https://image.oaes.cc/f2876b93-4a87-4456-b6e2-5303a8db5123/5158.fig.5.jpg)
Figure 5. (A) Energy levels of P3HT, PC61BM and PCPDTBT. Reproduced with permission. Copyright, 2010 John Wiley and Sons[96]. (B) Normalized enthalpy of PCPDTBT:P3HT and PCPDTBT:PC61BM blends with various PCPDTBT contents. Reproduced with permission. Copyright, 2012 Royal Society of Chemistry[98]. (C) X-ray spectra of P3HT:PC61BM blends as a function of P3BT content. Reproduced with permission. Copyright, 2015 Royal Society of Chemistry[99].