There are so many materials properties leading to memory that a unifying description seems impossible. However, it is easy to show that the majority of two-terminal electronic devices based on memory materials and systems behave simply as, or as a combination of, memristors, memcapacitors, and meminductors.
04 January 2012
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Organic non-volatile memory devices based on ferroelectricity are a promising approach towards the development of a low-cost memory technology based on a simple cross-bar array. In this review article we discuss the latest developments in this area with a focus on the most promising opto-electronic device concept.
04 January 2012
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This paper reviews the key physical properties that make this phase so special, the quantitative framework of cell performance, and the future perspectives of phase-change memory devices at the deep nanoscale.
04 January 2012
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This paper reviews the current status of research in nanocrystal memory and focuses on its materials, fabrication, structures, and treatment methods to provide an in-depth perspective of state-of-the-art nanocrystal memory.
04 January 2012
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The efficiency of solar cells made from a conjugated polymer blended with a fullerene derivative has risen from around 1 % to over 9 % in the last ten years, making organic photovoltaic technology a viable contender for commercialization.
10 October 2011
Research on organic light emitting diodes (OLEDs) has been revitalized, partly due to the debut of the OLED TV by SONY in 2008. While there is still plenty of room for improvement in efficiency, cost-effectiveness and longevity, it is timely to report on the advances of light emitting materials, the core of OLEDs, and their future perspectives.
10 October 2011
It has been recently shown that hybrid materials formed by nematic liquid crystals incorporated in complex micro-structured porous matrices are often capable of indefinitely retaining the alignment direction imposed by an electric field. This review examines this new class of material.
10 October 2011
Applications of colloidal semiconductor quantum dots (QDs) have recently begun to move from the laboratory into the commercial sector. This article provides a brief description of QDs and their associated optical properties, highlighting the concept that QD size is now a parameter used to tune photophysical properties.
23 August 2011
Exploration of the Stranski-Krastanow growth of strained semiconductor heterostructures marked the major breakthrough for easy fabrication of defect-free quantum dots (QDs). For the first time, single QDs are facilitating the development of electrically operated emitters of single polarized or entangled photons on demand: an essential component for quantum communication systems.
23 August 2011
Many electronic systems such as flat-panel displays, optical detectors, and sensor arrays would benefit greatly from mechanical flexibility. Ultraflexible and foldable electronics demonstrate ultimate flexibility, and are highly portable. A major obstacle toward the development of foldable electronics is the fundamental compromise between operation voltage, transistor performance, and mechanical flexibility.
23 August 2011