Advanced Optical Materials
Editor-in-Chief: Peter Gregory, Deputy Editors: Eva Rittweger, Guido Fuchs, Anja Eberhardt
Online ISSN: 2195-1071
Associated Title(s): Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Laser & Photonics Reviews, Particle & Particle Systems Characterization, Small
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Recently Published Articles
- ITO-Free, Compact, Color Liquid Crystal Devices Using Integrated Structural Color Filters and Graphene Electrodes
Jinbao Guo, Chad M. Huard, Yang Yang, Young Jae Shin, Kyu-Tae Lee and L. Jay Guo
Article first published online: 7 MAR 2014 | DOI: 10.1002/adom.201300525
A compact, indium tin oxide-free, color liquid crystal device is demonstrated using a transmission-mode Fabry–Perot cavity filter and graphene. This work points to a way to utilize these multifunctional structures for ITO-free liquid crystal applications.
- Terahertz Plasmonic Structures Based on Spatially Varying Conductivities
Barun Gupta, Shashank Pandey, Sivaraman Guruswamy and Ajay Nahata
Article first published online: 7 MAR 2014 | DOI: 10.1002/adom.201400018
Terahertz plasmonic structures with spatially varying conductivity are printed using commercially available inkjet printers. Using conductive silver ink and resistive carbon ink, different fractional amounts are printed in each dot to allow for the spatially varying conductivity. Using a periodic array of subwavelength holes as a test structure, the effect of this variation on the terahertz beam profile is measured using terahertz imaging.
- High Yields of Singlet Excitons in Organic Electroluminescence through Two Paths of Cold and Hot Excitons
Yuyu Pan, Weijun Li, Shitong Zhang, Liang Yao, Cheng Gu, Hai Xu, Bing Yang and Yuguang Ma
Article first published online: 6 MAR 2014 | DOI: 10.1002/adom.201300467
A very high singlet exciton ratio (∼93%) in the electroluminescence of the triphenylamine-thiadiazole molecule TPA-NZP is attributed to reverse intersystem crossing (T→S) along the high-lying charge-transfer state channel, denoted the “hot exciton” mechanism. Compared with a “cold exciton” mechanism, this may be a good strategy to design the next generation of organic light-emitting materials with high exciton utilization efficiency and high exciton radiation efficiency.
- Surface Plasmon Enhanced Hot Exciton Emission in Deep UV-Emitting AlGaN Multiple Quantum Wells
Jun Yin, Yang Li, Shengchang Chen, Jing Li, Junyong Kang, Wei Li, Peng Jin, Yonghai Chen, Zhihao Wu, Jiangnan Dai, Yanyan Fang and Changqing Chen
Article first published online: 4 MAR 2014 | DOI: 10.1002/adom.201300463
Significant deep UV emission enhancement, as high as 3.2-fold, in AlGaN-based multiple quantum wells (MQWs) via the energy-matched coupling of local surface plasmons (SPs) with hot excitons is demonstrated. This work provides not only a promising way to improve the internal quantum efficiency (IQE) in deep UV-emitting QWs, but also an insight into SP-enhanced hot carrier emission.
- Analysis of Deep-UV Nonlinear Optical Borates: Approaching the End
Wenjiao Yao, Ran He, Xiaoyang Wang, Zheshuai Lin and Chuangtian Chen
Article first published online: 28 FEB 2014 | DOI: 10.1002/adom.201300535
The access to deep-UV (DUV) sources depends greatly on the performance of nonlinear optical (NLO) crystals used in all-solid-state lasers. This paper discusses the structure-induced properties of the declared promising DUV NLO borates since the development of KBe2BO3F2, and forecasts their prospects of application. The KBe2BO3F2 is so far the best DUV NLO borate, and has yet to be surpassed.