Abstract
We report on the photovoltaic performance of bulk heterojunction solarcells using novel nanoparticles of 6-palmitate ascorbic acid surface modifiedTiO2 as an electron acceptor embedded into the donor poly(3-hexyl)thiophene (P3HT)matrix. Devices were fabricated by using P3HT with varying amounts of redTiO2 nanoparticles(1:1,1:2,1:3 w–w ratio). The devices were characterized by measuring current–voltage characteristics undersimulated AM 1.5 conditions. Incident photon to current efficiency (IPCE) was spectrallyresolved. The nanoscale morphology of such organic/inorganic hybrid blends was alsoinvestigated using atomic force microscopy (AFM).
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