News

Nature14h
Liquid crystal display and organic light-emitting diode display: present status and future perspectives
Recently, ‘Liquid crystal display (LCD) vs. organic light-emitting diode (OLED) display: who wins?’ has become a topic of heated debate. In this review, we perform a systematic and comparative ...
Nature3d
Ultraviolet light-emitting diodes based on group three nitrides
Research and development on III-nitride semiconductors gained momentum much later than other conventional semiconductors such as silicon and gallium arsenide. This was due to the difficulty in ...
IEEE4d
A Si MMIC compatible ferroelectric varactor shunt switch for microwave applications
Abstract: This letter describes a ferroelectric thin-film based varactor shunt switch, for microwave and millimeterwave switching applications. Our implementation is based on a coplanar waveguide ...
IEEE5d
300-GHz Balanced Varactor Doubler in Silicon CMOS for Ultrahigh-Speed Wireless Communications
Abstract: This letter presents a 300-GHz varactor doubler suitable for ultrahigh-speed wireless communications. The doubler employs balance configuration to enhance the second harmonic efficiently.
C&EN4d
Theoretical Prediction of Semiconductor-Free Negative Differential Resistance Tunnel Diodes with High Peak-to-Valley Current Ratios Based on Two-Dimensional Cold Metals
Institute of Physics, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle (Saale), Germany Article Views are ...
C&EN2d
Analyzing Bipolar Carrier Transport Characteristics of Diarylamino-Substituted Heterocyclic Compounds in Organic Light-Emitting Diodes by Probing Electroluminescence Spectra
Center for Future Chemistry, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan, Chitose Institute of Science and Technology, 758-65 Bibi, Chitose, Hokkaido 066-8655, Japan, and Koei Chemical Co.