Defect engineering in organic semiconductor based metal-dielectric photonic crystals.

Autor: Thakuri KS; Department of Physics, The University of Vermont, Burlington, VT, 05405, USA., Cleary T; Department of Physics, The University of Vermont, Burlington, VT, 05405, USA., Allemeier D; Material Science Program, The University of Vermont, Burlington, VT, 05405, USA.; Department of Mechanical Engineering, Boston University, Boston, MA, 02215, USA., Kimura T; Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata, 992-8510, Japan., Aizawa N; Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan., Nakayama KI; Division of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan., Masuhara A; Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata, 992-8510, Japan., White MS; Department of Physics, The University of Vermont, Burlington, VT, 05405, USA. mwhite25@uvm.edu.; Material Science Program, The University of Vermont, Burlington, VT, 05405, USA. mwhite25@uvm.edu.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Nov 23; Vol. 14 (1), pp. 29052. Date of Electronic Publication: 2024 Nov 23.
DOI: 10.1038/s41598-024-78971-6
Abstrakt: We investigate the band structure of metal-dielectric photonic crystals comprising stacked organic semiconductor microcavities with silver metal mirrors incorporating crystal defects: individual unit cells with aperiodic dimensionality. Both transfer matrix simulation and experimental verification are performed to investigate the impact on the photonic band structure as a single cavity is varied in size. The resulting mid-gap defect states are shown to hybridize with a photonic band at certain resonant dimensions. The resonance of the defect cavity affects the transmittance of light through the device, disrupting or enhancing the coupling between otherwise resonant cavities. We outline potential applications for defect engineering of these devices through controlled manipulation of the transmission spectrum.
Competing Interests: Declarations. Competing interests: M.S.W. and D.A. are inventors on PCT Patent Application No. PCT/US21/71679 with the University of Vermont and State Agricultural College as applicant. This patent covers light emitting devices with coupled resonant photonic unit cells.
(© 2024. The Author(s).)
Databáze: MEDLINE
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