Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3167354
Keywords
bio-inspired materials; excitons; nanobiotechnology; nanofabrication; nanostructured materials; organic compounds; photoluminescence; quantum dots; self-assembly
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Until now, the wide research field of quantum dots (QDs) focused on inorganic structures. In the present study, we report on quantum confinement phenomena found in peptide nanocrystalline regions formed within self-assembly peptide nanospheres. These bioinspired nanostructures exhibit the optical absorption characteristics of QDs with pronounced luminescence of excitons whose origin is at the UV region. Theoretical estimations based on experimental data show that the radius of the self assembled peptide QDs is 1.3 nm.
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