Abstract

An ultrathin metal film with high transmittance and conductivity has been demonstrated to be a promising transparent electrode for organic light-emitting devices (OLEDs). However, mediocre surface morphology and continuity of evaporated metal films and the surface plasmon-polaritons (SPPs) energy loss between the metal electrode and organic layer still limit the external quantum efficiency (EQE) of OLEDs. Here, nanoimprint lithography has been directly applied on the ultrathin Au film with underlying uncured photopolymer to fabricate the nanopillared anode. Both the conductivity and transmittance of the nanopillared ultrathin Au film have been improved due to the improvement of continuity and surface smoothness. As we expected, the SPPs mode has been coupled into photons and further extracted from OLEDs by using the nanopillared Au film anode. Finally, 19.2% and 70.1% enhancement of current efficiency were achieved compared to the planar device with ultrathin Au anode and ITO anode, respectively.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Highly flexible organic–inorganic hybrid perovskite light-emitting devices based on an ultrathin Au electrode

Yu-Shan Liu, Shuang Guo, Fang-Shun Yi, Jing Feng, and Hong-Bo Sun
Opt. Lett. 43(22) 5524-5527 (2018)

Efficiency enhancement of flexible organic light-emitting devices by using antireflection nanopillars

Yu-Hsuan Ho, Chung-Chun Liu, Shun-Wei Liu, Hsun Liang, Chih-Wei Chu, and Pei-Kuen Wei
Opt. Express 19(S3) A295-A302 (2011)

Improved light extraction in all-inorganic perovskite light-emitting devices with periodic nanostructures by nanoimprinting lithography

Shuang Guo, Yu-Shan Liu, Xu-Lin Zhang, Yue-Feng Liu, Yan-Gang Bi, Xue-Mei Wen, Jing Feng, and Hong-Bo Sun
Opt. Lett. 45(18) 5156-5159 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription