(Source: University of California - Berkeley) An emerging class of atomically thin materials known as monolayer semiconductors has generated a great deal of buzz in the world of materials science. Monolayers hold promise in the development of transparent LED displays, ultra-high efficiency solar cells, photo detectors and nanoscale transistors. Their downside? The films are notoriously riddled with defects, killing their performance. Schematic of a laser beam energizing a monolayer semiconductor made of molybdenum disulfide, or MoS2. The red glowing dots are particles excited by the laser. (Image by Der-Hsien Lien) But now a research team, led by engineers at UC Berkeley and Lawrence...
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