Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 12, Issue 5, Pages 3725-3731Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2012.6186
Keywords
Zno Nanorods; Organic-Inorganic Hybrid Solar Cell; Interface Between the Organic and Inorganic Nanostructures
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Organic-inorganic hybrid solar cells based on poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl C-61 butyric acid methyl ester (PCBM) hybridized with ZnO nanorods were fabricated by growing vertical ZnO nanorods on indium tin oxide (ITO) substrates and filling with bulk heterojunction polymers (P3HT:PCBM). The interface between the organic and inorganic nanostructures influences the performance of the organic-inorganic hybrid solar cells. In this paper, the influence of the state of the P3HT:PCBM/ZnO interface on the performance of organic-inorganic hybrid solar cells is examined. The solar cell performance was high when the P3HT:PCBM/ZnO junction area was large. The charge separation is effective when the active layer/electron transport layer junction area is large, resulting in increasing photocurrent and a high conversion efficiency. The bulk-heterojunction polymer concentration was kept low to infiltrate into the ZnO nanorods, resulting in a large active layer/electron transport layer junction area.
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