Jump to main content
Jump to site search


Dipole reorientation and local density of optical states influence the emission of light-emitting electrochemical cells

Abstract

Herein we analyze the temporal evolution of the electroluminescence of light-emitting electrochemical cells (LECs), a thin-film light-emitting device, in order to maximize the luminous power radiated by these devices. A careful analysis of the spectral and angular distribution of the emission of LECs fabricated under the same experimental conditions, allows describing the dynamics of the spatial region from which LECs emit, i.e. the generation zone, as bias is applied. This effect is mediated by dipole reorientation within such emissive region and its optical environment, since its spatial drift yields a different interplay between the intrinsic emission of the emitters and the local density of optical states of the system. Our results demonstrate that engineering the optical environment in thin-film light-emitting devices is key to maximize their brightness.

Back to tab navigation

Supplementary files

Publication details

The article was received on 08 Oct 2019, accepted on 01 Nov 2019 and first published on 05 Nov 2019


Article type: Paper
DOI: 10.1039/C9CP05505C
Phys. Chem. Chem. Phys., 2019, Accepted Manuscript
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Dipole reorientation and local density of optical states influence the emission of light-emitting electrochemical cells

    A. Jiménez-Solano, L. Martinez-Sarti, A. Pertegás, G. Lozano, H. J. Bolink and H. Míguez, Phys. Chem. Chem. Phys., 2019, Accepted Manuscript , DOI: 10.1039/C9CP05505C

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements