Bifunctional Electrocatalysts of MOF-Derived Co-N/C on Bamboo-Like MnO Nanowires for High-Performance Liquid and Solid-State Zn-Air Batteries

J. Mater. Chem. A, 2018, Accepted ManuscriptDOI: 10.1039/C8TA01859F, PaperYanan Chen, Yibo Guo, Huijuan Cui, Zhaojun Xie, Xin Zhang, Jinping Wei, Zhen ZhouExploration of cost-effective electrocatalysts that could replace noble metals to promote oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) holds great…

A nanomaterial to make your phone battery last

A nanomaterial to make your phone battery lastA nanomaterial to make your phone battery last, Published online: 20 April 2018; doi:10.1038/d41586-018-04884-wCompound prevents deterioration of an inexpensive component. Published in: Published in: Nature

Perovskite nanostructures for photovoltaic and energy storage devices

J. Mater. Chem. A, 2018, Accepted ManuscriptDOI: 10.1039/C8TA01964A, Review ArticleAthanasia Kostopoulou, Emmanuel Kymakis, Emmanuel StratakisExploring prospective materials for efficient energy production and storage is a big challenge in this century. Numerous research groups working in this field focus on novel materials for such…

Homogeneous growth of TiO 2 -based nanotubes on nitrogen-doped reduced graphene oxide and its enhanced performance as a Li-ion battery anode

The pursuit of a promising replacement candidate for graphite as a Li-ion battery anode, which can satisfy both engineering criteria and market needs has been the target of researchers for more than two decades. In this work, we have investigated the synergistic effect…

Highly Interconnected Hollow Graphene Nanospheres as an Advanced High Energy – High power Cathode for Sodium Metal Batteries

J. Mater. Chem. A, 2018, Accepted ManuscriptDOI: 10.1039/C8TA00153G, CommunicationRanjith Thangavel, Aravindaraj G Kannan, Rubha Ponraj, Xueliang Sun, Dong-Won Kim, Yun-Sung LeeDeveloping sodium based energy storage systems that retain high energy density at high power along with stable cycling is of paramount importance to…

Transient Thermal Characterization of AlGaN/GaN HEMTs Under Pulsed Biasing

The development of steady-state thermal characterization techniques for AlGaN/GaN high-electron mobility transistors (HEMTs) has been used to measure the device’s peak temperature under DC conditions. Despite these methods enabling the accurate quantification of the device’s effective thermal resistance and power density dependence, transient…

The Possibility of mW/cm2-Class On-Chip Power Generation Using Ultrasmall Si Nanowire-Based Thermoelectric Generators

A simple structure of planar silicon nanowire (SiNW)-based thermoelectric (TE) generators (TEGs) is presented in this paper, which has the ability to sustain temperature difference along SiNW under ultrashort channel length for achieving mW/cm2-class power output from environmental heat energy. The TE performance…

Pulse Switching Study on the HfZrO Ferroelectric Films With High Pressure Annealing

Hf0.5Zr0.5O2 (HfZrO) thin-film ferroelectric materials have recently drawn considerable attention due to their attractive properties such as large bandgap (>5 eV), extreme thin thickness ( ${le} 10$ nm), and good Si-compatibility. However, high crystallization temperature (600 °C–1000 °C) and relatively low remanent polarization…

Origin of Nonideal Graphene-Silicon Schottky Junction

In this paper, we investigate the origin of the nonideal turn- ON characteristics of the graphene-silicon Schottky junction. Native oxide (SiO2) is proved to play a critical role in determining the behavior of a graphene-Si junction. Within the metal–oxide–semiconductor structure, the effective voltage…

Impact of Nonhomoepitaxial Defects in Depleted Diamond MOS Capacitors

In this paper, we introduce a set of experiments and analyses to comprehensively correlate the epitaxial structural defects and electrical characteristics in the pseudovertical homoepitaxial boron-doped oxygen-terminated (001) diamond metal–oxide–semiconductor capacitors (MOSCAPs). Current–voltage I(V), capacitance–voltage C(V), and capacitance–frequency C(f) characteristics of the MOSCAPs…