Abstrakti

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.
AlkuperäiskieliEnglanti
Artikkeli384003
JulkaisuNanotechnology
Vuosikerta31
Numero38
Varhainen verkossa julkaisun päivämäärä9 kesäkuuta 2020
DOI - pysyväislinkit
TilaSähköinen julkaisu (e-pub) ennen painettua julkistusta - 9 kesäkuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Sormenjälki Sukella tutkimusaiheisiin 'Management of light and scattering in InP NWs by dielectric polymer shell'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.

  • Projektit

    Fotoniikan Tutkimus ja Innovaatio

    Lipsanen, H. & Ahmed, F.

    01/01/201931/12/2022

    Projekti: Academy of Finland: Other research funding

    Fotoniikan Tutkimus ja Innovaatio

    Sun, Z. & Li, D.

    01/01/201931/12/2022

    Projekti: Academy of Finland: Other research funding

    Laitteet

    OtaNano

    Anna Rissanen (Manager)

    Aalto-yliopisto

    Laitteistot/tilat: Facility

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