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Management of light and scattering in InP NWs by dielectric polymer shell.
Haggren, Tuomas; Anttu, Nicklas; Mäntynen, Henrik; Tossi, Camilla; Kim, Maria; Khayrudinov, Vladislav; Lipsanen, Harri.
Afiliação
  • Haggren T; Department of Electronics and Nanoengineering, Micronova, Aalto University, P.O. Box 13500, FI-00076, Finland. Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia.
Nanotechnology ; 31(38): 384003, 2020 Jun 09.
Article em En | MEDLINE | ID: mdl-32516762
Understanding and management of light is of great importance for nanoscale devices. This report demonstrates enhanced absorption, photoluminescence and scattering in InP nanowires when coated with dielectric polymer shell. The shells increase absorption and emission by a factor of ∼2 and photoluminescence by a factor of ∼4. A thorough optical characterization is provided, including reflectance, transmission, luminescence and scattering to incident and transmitted directions. From this characterization, we derive the distribution of absorbed light within the structure (InP nanowires, Au seed particles and the substrate). Additionally, reflectance, transmission and emission are shown to become increasingly diffuse with the dielectric shells. The results are thought to provide better understanding in light-matter interaction in nanostructures, as well as to provide valuable tools for light and scattering management in nanoscale optoelectronics.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article