Highly efficient, heat dissipating, stretchable organic light-emitting diodes based on a MoO3/Au/MoO3 electrode with encapsulation

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 38
  • Download : 0
Stretchable organic light-emitting diodes are ubiquitous in the rapidly developing wearable display technology. However, low efficiency and poor mechanical stability inhibit their commercial applications owing to the restrictions generated by strain. Here, we demonstrate the exceptional performance of a transparent (molybdenum-trioxide/gold/molybdenum-trioxide) electrode for buckled, twistable, and geometrically stretchable organic light-emitting diodes under 2-dimensional random area strain with invariant color coordinates. The devices are fabricated on a thin optical-adhesive/elastomer with a small mechanical bending strain and water-proofed by optical-adhesive encapsulation in a sandwiched structure. The heat dissipation mechanism of the thin optical-adhesive substrate, thin elastomer-based devices or silicon dioxide nanoparticles reduces triplet-triplet annihilation, providing consistent performance at high exciton density, compared with thick elastomer and a glass substrate. The performance is enhanced by the nanoparticles in the optical-adhesive for light out-coupling and improved heat dissipation. A high current efficiency of similar to 82.4cd/A and an external quantum efficiency of similar to 22.3% are achieved with minimum efficiency roll-off.
Publisher
NATURE RESEARCH
Issue Date
2021-05
Language
English
Article Type
Article
Citation

NATURE COMMUNICATIONS, v.12, no.1

ISSN
2041-1723
DOI
10.1038/s41467-021-23203-y
URI
http://hdl.handle.net/10203/286433
Appears in Collection
EE-Journal Papers(저널논문)ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0