Journal
ADVANCED OPTICAL MATERIALS
Volume 5, Issue 16, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201601013
Keywords
chirality; circular dichroism; CuO films; nanofilms; optical activity
Categories
Funding
- National Natural Science Foundation of China [21471099, 21601123]
Ask authors/readers for more resources
Chiral semiconductor nanomaterials with optical activity have intrigued magnificent attention due to their potential technological applications, but so far there have been no reports of chiral optically active CuO nanofilms. In this work, a facile chemical method to deposit chiral CuO nanoflowers on an activated quartz substrate is demonstrated. Three levels of chirality in CuO nanofilms are demostrated by structural analysis: tertiary helically arranged nanopetals assembled from secondary helically stacking nanoplates. Primary twisting chiral nanostructure of the nanoplate is believed to exist after careful examination on circular dichroism optical responses given by the CuO nanofilms. Originated from hierarchical chiralites, the CuO films exhibit both the electron transition absorption-based optical activity at the characteristic absorption bands and reflection-based optical activity arising from the long-range periodic structure at the circular Bragg resonance.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available