category » Materials
Quantum dot light emitting diodes (QD-LEDs) are promising devices for the next generation of solid-state lighting and other optoelectronic applications….
Graphene is a two-dimensional (2D) material that has attracted great interest for electronic devices since its discovery in 2004 [1]…
With its all-surface 2D structure combined with very high carrier mobility, graphene is an extremely promising candidate for high sensitivity…
Gas sensors are essential in the monitoring, control, and reduction of harmful emissions in the environment [1] . Conductometric gas…
Solid oxide fuel cells (SOFCs) directly convert chemical to electrical energy with high efficiency and can operate using a wide…
Detection of high-energy radiation (e.g., γ-rays) is key in nuclear non-proliferation strategies. When a wide-band gap semiconductor detector intercepts a…
Because thin films are usually unstable in the as-deposited state, at sufficiently high temperatures atomic motion will occur and lead…
Combustion of fossil fuels, essential for electricity generation and vehicular propulsion, is generally incomplete, leading to harmful NOx, CO, and…
With continuously growing energy demands, new alternative energy solutions become essential. In order to achieve sustainability, efficient conversion and storage…
Micro-batteries provide a critical component for self-powered autonomous microsystems. Lithium-ion batteries provide relatively high energy storage capacities. Significant improvement in…
Perovskite oxides can have a range of electronic, optical, and magnetic properties that make them valuable in devices. In this…
Due to their mechanical, thermal, and electrical properties and their natural ability to grow on a variety of metallic and…
Two-dimensional photonic crystals (PhCs) are fabricated using dual-beam focused ion beam (FIB) in Er3+-TeO2 thin films and demonstrate broadband enhancement…
Hexagonal boron nitride (h-BN) is very attractive for many applications, particularly as a protective coating, dielectric layer/substrate, transparent membrane, or…
Nano-electromechanical systems (NEMS) are an emerging area of research with potential applications as low-power switches for electronic circuits. The proliferation…
Nanowires are an exciting architecture for light emitting diodes (LEDs). To address the challenges of solid state lighting, III-V nitride…
GaN-based high electron mobility transistors (HEMTs) are an important platform for the realization of high-power, high-frequency devices. Nanoribbon (NR) HEMT…
Achieving a sharp subthreshold swing is crucial to enable the supply voltage scaling that is necessary to reducing power consumption…
Paulo T. Araujo has been using MTL facilities through 2011/2012 to fulfill one step of his device fabrication. In general,…
Tunnelling devices based on semiconductor heterojunctions offer the potential for computation with very high energy efficiency. This potential exists because…
Semiconducting alloys of InxGa1-xAs, GaAsySb1-y, and InAszP1-z can be fabricated to exhibit band gaps between 0.5 and 1.0 eV, which…
Yellow-green LEDs with emission at the wavelengths of 570-580 nm are commercially interesting because they can be combined with blue…
Photovoltaics and sustainability have received much attention lately. We seek a tandem photovoltaic device using silicon as both the substrate…
Organic/inorganic hybrid solar cells based on the integration of conductive polymers into semiconducting nanowire arrays offer opportunities for the development…
As silicon MOSFETs approach the limits of their capabilities, III-V field-effect transistors show promise to replace them. The low-effective mass…
Nanostructured solar cells are attracting increasing attention as a promising photovoltaic (PV) technology [1] . Generation of free charge carriers…
Water oxidation is the thermodynamically demanding step of the water-splitting reaction. Efficient sunlight-driven water splitting into molecular oxygen and hydrogen…
Thin-film solar cells incorporating colloidal quantum dot active layers have recently emerged as a notable third-generation photovoltaic (PV) technology, largely…
Disordered semiconductors exhibit poor electronic transport properties due to their amorphous nature. Low carrier mobility and lifetime limits the diffusion…
Colloidal lead sulfide quantum dot (PbS QD) solar cells have recently shown attractive improvements in efficiency [1]. PbS QDs have…
Self-assembled block copolymer structures are useful in nanolithography applications, producing patterns with high resolution and throughput. We previously showed control…