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Saturday, March 8, 2014

#279 2D fascination

Interest in ultimate 2D, i.e. one atom/molecule thick, semiconductor material systems is expanding rapidly. In terms of attention, there is no doubt that graphene leads the field. In fact, in this very blog I commented on graphene on five different occasions starting six years ago in entry #30 followed by #31, 116, 138, and 154. More recently, 2-dimensional molybdenum disulfide, MoS2, also attracts a great deal of attention in semiconductor community because, unlike graphene, it actually features an energy gap, and hence, allows implementation of a switching transistor essential in logic ICs.


The most recent addition to the field is a 2D silicon known as silicene (see blog #229). Assuming adequate progress in the fabrication of silicene will be accomplished, one atom thick Si sheets could become 2D material system of choice in next, next, next ... generation transistor technology. You may wonder why this fascination with 2D material systems for device application? Reasons are many, but the most important is electron mobility being orders of magnitude higher in 2D confined materials as compared to their 3D equivalents.

Posted by Jerzy Ruzyllo at 07:59 PM | Semiconductors | Link is the personal blog of Jerzy Ruzyllo. With over 35 years of experience in academic research and teaching in the area of semiconductor engineering (currently holding position of a Distinguished Professor of Electrical Engineering and Professor of Materials Science and Engineering at Penn State University), he has a unique perspective on the developments in this progress driving technical domain and enjoys blogging about it.

With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.

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