Chandrasekhar, Naisa ; Basak, Supratim ; Mohiddon, Mahamad Ahamad ; Chandrasekar, Rajadurai (2014) Planar Active Organic Waveguide and Wavelength Filter: Self-Assembled meso-Tetratolylporphyrin Hexagonal Nanosheet ACS Applied Materials & Interfaces, 6 (3). pp. 1488-1494. ISSN 1944-8244
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Official URL: http://doi.org/10.1021/am4039163
Related URL: http://dx.doi.org/10.1021/am4039163
Abstract
We have fabricated nearly monodispersed nanocrystalline sheet waveguides from a well–known red emitting meso-tetratolylporphyrin molecule (1) by following a bottom-up solvent assisted self-assembly technique. The nano-sheets thickness is in the range of 110–180 nm. Localized laser illumination showed excitation position dependent exciton polariton (653 and 719 nm) propagation behavior of the sheets. The spatially resolved fluorescence spectra of the sheets showed optical modes at the input and output points, indicating cavity effect. Additionally, because of the reabsorption of the 653 nm emission, the nanosheets also act as wave length filter by cutting off the 653 nm photons from reaching the output end.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| Keywords: | Porphyrins; Nanosheet; Photonics; Organic Waveguides; Exciton-polariton; Optical Modes. |
| ID Code: | 117409 |
| Deposited On: | 23 Apr 2021 06:39 |
| Last Modified: | 23 Apr 2021 06:39 |
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