Kannappan, SanthakumarElectrochimica ActaLiyakath Reshmaa, Kannappan Santhakumar, High-Efficiency fullerene-free organic solar cell based on P3HT: P(NDI2OD-T2) co-polymers through inte- grated molecular and interfacial engineering, Electrochim. Acta 250 (2017) 267e277....