Material

Perovskites have generated huge interest in recent years because of their potential for solid-state lighting and displays, despite lagging behind other state-of-the-art technologies in efficiency and longevity. Now two independent teams have reported light-emitting diodes (LEDs) based on perovskites that have surpassed a milestone in efficiency [Cao et al., Nature …

Over the past two decades, many wireless systems have been developed and widely used around the world. The most important examples are cellular mobile radio and Wi-Fi systems. Just like radio and television broadcasting systems, they radiate electromagnetic waves/energy into the air but a large amount of the energy is …

Since the 1980’s, the electronics industry has undergone explosive growth, as higher transistor densities have fueled substantial performance advances while paving the way for miniaturization.  In order for these systems to function properly, the electronic circuits within them must be protected from extreme temperatures, contaminants, shock and vibration, and harsh …

Many alternatives to silicon are being developed, as it is believed that silicon transistors will reach their technological limits after 2020. Two-dimensional (2-D) nanomaterials have shown promise for a new generation of nanoelectronic devices. The most widely studied 2-D nanomaterial is graphene, a single layer of carbon atoms and packed …

Magneto resistor is a type of resistor whose resistance changes when an external magnetic field is applied. In other words, the flow of electric current through the magneto resistor changes when an external magnetic field is applied to it.   Magnetic field is the region present around a magnetic object …

“Electronics have dramatically changed the way we live, conduct business, communicate, and educate. Visions of the future foretell of ubiquitous computing and sensing. However, the environments in which electronics can reliably operate are limited. In consumer applications, typical operating temperatures range from -40° to 85°C. The “wider” military temperature range …

The phonon is the physical particle representing mechanical vibration and is responsible for the transmission of everyday sound and heat. Understanding and controlling the phononic properties of materials provides opportunities to thermally insulate buildings, reduce environmental noise, transform waste heat into electricity and develop earthquake protection.   The concept of …

Normal solid surfaces are wetted by liquids such as water and oil. In many cases, surface wetting is undesirable due to the fact that the liquids may largely deteriorate the functionality of the surface, or cause unwanted effects. For example, evaporation of liquid droplets could leave behind chemical or dirt …

After nearly a century of dominance as the material of choice for aircraft, metals are seeing increased competition from composite materials in use on Aircrafts. In the modern age, the aerospace industry is also looking ahead to tougher, lighter, and more heat-resistant materials that would lessen emissions, cut fuel costs, …

Norwegian oil and gas industry is heading into the Arctic, and its looking for Work clothing specifically tailored to Arctic conditions is hard to find. Industrial designers have now joined forces with researchers to create the perfect clothing concept. Wenaas is a leading supplier of work clothing to the oil …