Abstract
Ni–P/AAO nano-array composite structure assemblies with Ni and P grown in the pores of anodic aluminum oxide (AAO) membranes were prepared by electroless deposition. The results of SEM, TEM and SAED show that as-deposited Ni–P nanowires have an amorphous structure and a few nanocrystallites form after annealing. The optical absorption spectra reveal that, as the annealing temperature increases, the absorption band edge of the Ni–P/AAO composite structure is obviously blue shifted, which is attributed to a decrease of the internal pressure after heat treatment. Meanwhile, the annealed Ni–P/AAO nano-array composite structure exhibits the absorption behavior of a direct band gap semiconductor. Details of this behavior are discussed together with the implications for potential device applications.
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Liu, YF., Wang, FH., Guo, DL. et al. Effects of heat treatment on optical absorption properties of Ni–P/AAO nano-array composite structure. Appl. Phys. A 97, 677–681 (2009). https://doi.org/10.1007/s00339-009-5289-9
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DOI: https://doi.org/10.1007/s00339-009-5289-9