Advanced Optical Materials
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: Peter Gregory, Deputy Editor: Eva Rittweger
Online ISSN: 2195-1071
Associated Title(s): Advanced Electronic Materials, Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Advanced Science, Laser & Photonics Reviews, Particle & Particle Systems Characterization, Small
Recently Published Articles
- Polarization Control in Terahertz Metasurfaces with the Lowest Order Rotational Symmetry
Longqing Cong, Ningning Xu, Weili Zhang and Ranjan Singh
Article first published online: 28 APR 2015 | DOI: 10.1002/adom.201500100
A planar metamolecule with twofold rotational symmetry that shows giant cross polarization transmission leads to strong optical activity and behaves as a perfect circular polarizer. Such planar metasurfaces would be used to design active polarization control devices and high efficiency wave deflector by carefully engineering the phase discontinuities for real applications in optical and terahertz technologies.
- Enhanced Light Extraction from Mechanically Flexible, Nanostructured Organic Light-Emitting Diodes with Plasmonic Nanomesh Electrodes
Sung-Min Lee, Yunil Cho, Dong-Young Kim, Joon-Sik Chae and Kyung Cheol Choi
Article first published online: 28 APR 2015 | DOI: 10.1002/adom.201500103
Characteristics of light extraction from nanostructured organic light-emitting diodes (OLEDs) incorporating plasmonic metal nanomesh anodes are investigated for achieving high-performance, flexible OLEDs. A highly efficient OLED is available when an off-optimal metal nanomesh electrode for high transmittance is used as an anode because the surface plasmon loss is singnificantly reduced at a nanomesh period inconsistent with its optimal period.
- Hybrid Graphene–Perovskite Phototransistors with Ultrahigh Responsivity and Gain
Yusheng Wang, Yupeng Zhang, Yao Lu, Weidong Xu, Haoran Mu, Caiyun Chen, Hong Qiao, Jingchao Song, Shaojuan Li, Baoquan Sun, Yi-Bing Cheng and Qiaoliang Bao
Article first published online: 24 APR 2015 | DOI: 10.1002/adom.201500150
A photoconductive gain of ≈ 109 electrons per photon and a responsivity of ≈6.0 × 105 A W−1 are demonstrated in a hybrid photodetector that consists of monolayer graphene covered with a thin layer of dispersive organolead halide perovskite (CH3NH3PbBr2I) islands with sizes up to micrometers. The s-scanning near-field optical microscopy and photocurrent mapping results provide real-space evidence for the charge transfer and photogating effect.
- High-Performance Organic Solar Cells with Broadband Absorption Enhancement and Reliable Reproducibility Enabled by Collective Plasmonic Effects
Xuanhua Li, Xingang Ren, Fengxian Xie, Yongxing Zhang, Tingting Xu, Bingqing Wei and Wallace C. H. Choy
Article first published online: 22 APR 2015 | DOI: 10.1002/adom.201500107
A significant enhancement of organic solar cell (OSC) performance from a power conversion efficiency (PCE) = 7.7% up to a maximum of 9.62% is reported, which is one of the highest efficiencies for plasmonic OSCs reported thus far for a single junction OSC. Importantly, the as-proposed device shows an excellent reproducibility of these devices, which is more applicable for the practical application.
- Controlling Emitting Dipole Orientation with Methyl Substituents on Main Ligand of Iridium Complexes for Highly Efficient Phosphorescent Organic Light-Emitting Diodes
Kwon-Hyeon Kim, Jae-Yeol Ma, Chang-Ki Moon, Jeong-Hwan Lee, Jang Yeol Baek, Yun-Hi Kim and Jang-Joo Kim
Article first published online: 21 APR 2015 | DOI: 10.1002/adom.201500141
Orientation of emission dipoles of heteroleptic iridium complexes in an emitting layer is controlled toward the horizontal direction by substituting the hydrogen atoms of the cyclometalated ligand by methyl groups and demonstrates an organic light-emitting diode with an unprecedentedly high external quantum efficiency of 34.1% and power efficiency of 157.6 lm W−1 using a new green emitter.