Annealing effect of hybrid solar cells based on poly (3-hexylthiophene) and zinc-oxide nanostructures
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
The structural growth and optical and photovoltaic properties of the organic–inorganic hybrid
structures of zinc
oxide (ZnO)-nanorods/poly-3-hexylthiophene (P3HT) and two variations of organic polymer blends of
ZnO/ P3HT:C60 fullerene and ZnO/P3HT:6,6]-phenyl C61 butyric acid methyl ester were studied in
detail during thermal annealing. The ordering of the P3HT nanocrystals increased during annealing,
which also improved hole transport in the hybrid structures. The optical constants of the
ZnO/P3HT:[6,6]-phenyl C61 butyric acid methyl ester (PCBM) films elevated with annealing temperature
due to the improved crystallisation induced by the formation of P3HT crystalline domains. As a
result, a maximum power conversion efficiency of approximately 1.03% was achieved for the annealed
ZnO/P3HT:PCBM device at 140 °C. These findings indicate that ZnO-nanorods/P3HT:PCBM films
are stable at temperatures up to 160 °C.
Description
Keywords
Poly-3-hexylthiophene, Fullerenes, Annealing, Degradation, Ellipsometry, Photovoltaics, Zinc oxide
Citation
Motaung, D. et al. (2013). Annealing effect of hybrid solar cells based on poly (3-hexylthiophene) and zinc-oxide nanostructures. Thin Solid Films, 537: 90-96