Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1641695 | Materials Letters | 2016 | 4 Pages |
Abstract
1% Al-doped ZnO transparent and conducting thin films on flexible polyimide (PI) substrates were successfully synthesized by the conventional sol-gel spin coating method. All the films with different number of layers (9, 10 and 11) retained a hexagonal wurtzite structure of ZnO and showed preferential c-axis orientation. Good adhesion was evidenced by dense microstructure and homogeneously distributed grains of the films on flexible PI substrates. The average transmittances reached 70% for all the films above a cut-off wavelength of â¼500 nm originated from PI substrates. Comparing to the resistance of films annealed in air, the electrical conductivity could be enhanced by further vacuum (Pâ¼10â2 Pa) post-annealing, and lowest resistivity of 2.52Ã10â1 Ωcm was obtained in the film with 10 layers.
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Authors
Libing Duan, Xiaoru Zhao, Yangyang Zhang, Hao Shen, Ruidi Liu,