title: Blue luminescence based on quantum confinement at peptide nanotubes.
abstract: We report on observation of photoluminescence (PL) in blue and UV regions of exciton origin in bioinspired material-peptide nanotubes (PNTs). Steplike optical absorption and PL measurements have allowed finding quantum confined (QC) phenomenon in PNTs. The estimations show that QC in these nanotubes occurs due to a crystalline structure of subnanometer scale dimension formed under the self-assembly process. Our new findings pave the way for the integration of PNT in a new generation of optical devices. A blue PL array of a PNT-patterned device is demonstrated.
authors.affiliation: Department of Molecular Microbiology and Biotechnology, George S Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.
authors.forename: Nadav
authors.initials: N
authors.lastname: Amdursky
authors.forename: Michel
authors.initials: M
authors.lastname: Molotskii
authors.forename: Daniel
authors.initials: D
authors.lastname: Aronov
authors.forename: Lihi
authors.initials: L
authors.lastname: Adler-Abramovich
authors.forename: Ehud
authors.initials: E
authors.lastname: Gazit
authors.forename: Gil
authors.initials: G
authors.lastname: Rosenman
mesh_terms: D049449:Luminescence; D008422:Materials Testing; D036103:Nanotechnology; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D010455:Peptides / Q000737:chemistry*; D011789:Quantum Theory; D013499:Surface Properties
chemical_list: D010455:Peptides