Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Conventional waveguide mode decoupling methods for organic light-emitting diodes (OLEDs) are typically not scalable and increase fabrication complexity/cost. Indium-tin-oxide-free transparent anode technologies showed efficiency improvement without affecting other device properties. However, previous works lack rigorous analysis to understand the efficiency improvement. Here, we introduced an ultrathin silver (Ag) film as transparent electrode and conducted systematic modal analysis of OLEDs and report that waveguide mode can be completely eliminated by designing an OLED structure that is below the cutoff thickness of waveguide modes. We also experimentally verified the waveguide mode removal in organic waveguides with the help of index-matching fluid and prism. The negative permittivity, extremely thin thickness (~5 nanometers), and highly conductive properties achieved by a uniform copper-seeded Ag film can suppress waveguide mode formation, enhancing external quantum efficiency without compromising any other characteristics of OLEDs, which paves the way for cost-effective high-efficiency OLEDs in current display industry.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8232906 | PMC |
| http://dx.doi.org/10.1126/sciadv.abg0355 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dual-band mixed-mode bandpass filter based on dual-layer substrate integrated waveguide resonator loaded with A capacitive patch.
PLoS One
September 2025
The School of Electrics and Information Engineering, Yunnan Minzu University, Kunming, China.
To address the growing demand for compact and high-performance microwave filters in modern communication systems, a mixed-mode bandpass filter is proposed in the article. A dual-layer substrate integrated waveguide resonator loaded with a capacitive patch (CP-DSIWR) is proposed and theoretically analyzed, with both patch modes and cavity modes existing. To construct the bandpass filter, two rows of metallic vias are designed in the CP-SIWR to enable coupling between the two types of the modes, with the structure being fed by microstrip line.
View Article and Find Full Text PDFOptimizing noise control in flexible shells with bridging membrane discs variations.
PLoS One
September 2025
Department of Mathematics, College of Science, Jouf University, Sakaka, Saudi Arabia.
This study explores the acoustic behavior of flexible cylindrical shells incorporating membrane discs at structural interfaces, focusing on their influence on wave propagation characteristics. The dynamics of the embedded membrane discs are modeled at the junctions between different shell segments, and the resulting boundary value problem is addressed using a combination of the Mode-Matching (MM) and Galerkin methods. The governing equations comprise the Helmholtz equation in the fluid domain and the Donnell-Mushtari shell equations in the elastic guiding regions.
View Article and Find Full Text PDFOn-chip near-infrared gas sensing based on slow light mode multiplexing in photonic crystal waveguides.
Lab Chip
September 2025
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China.
Photonic crystal slow light waveguides present a breakthrough in the manipulation of optical signals and enhancing the interaction between light and matter. In particular, two-dimensional (2D) photonic crystal waveguides (PCWs) on silicon photonic chips hold promise in improving the sensitivity of on-chip gas sensors. However, the development of the gas sensors based on 2D PCWs suffers from a high propagation loss and a narrow slow light bandwidth.
View Article and Find Full Text PDFUnidirectional perfect absorption induced by chiral coupling in spin-momentum locked waveguide magnonics.
Nat Commun
August 2025
Zhejiang Key Laboratory of Micro-Nano Quantum Chips and Quantum Control, State Key Laboratory for Extreme Photonics and Instrumentation, School of Physics, Zhejiang University, Hangzhou, China.
Chiral coupling offers alternative avenues for controlling and exploiting light-matter interactions. We demonstrate that chiral coupling can be utilized to achieve unidirectional perfect absorption. In our experiments, chiral magnon-photon coupling is realized by coupling the magnon modes in yttrium iron garnet (YIG) spheres with spin-momentum-locked waveguide modes supported by spoof surface plasmon polaritons (SSPPs).
View Article and Find Full Text PDFDemonstration of Monolithic Integration of InAs Quantum Dot Microdisk Light Emitters and Photodetectors Directly Grown on On-Axis Silicon (001).
Micromachines (Basel)
July 2025
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Silicon-based microcavity quantum dot lasers are attractive candidates for on-chip light sources in photonic integrated circuits due to their small size, low power consumption, and compatibility with silicon photonic platforms. However, integrating components like quantum dot lasers and photodetectors on a single chip remains challenging due to material compatibility issues and mode field mismatch problems. In this work, we have demonstrated monolithic integration of an InAs quantum dot microdisk light emitter, waveguide, and photodetector on a silicon platform using a shared epitaxial structure.
View Article and Find Full Text PDF