Iranian develops defect-free, molecule-thick film

Iranian develops defect-free, molecule-thick film

Iranian develops defect-free, molecule-thick film

 

 
 
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.
 
But now a research team, led by University of California, Berkeley’s Iranian professor of electrical engineering and computer sciences Ali Javey, who is also a faculty scientist at Berkeley Lab engineers and Lawrence Berkeley National Laboratory, has found a simple way to fix these defects through the use of an organic superacid. The chemical treatment led to a dramatic 100-fold increase in the material’s photoluminescence quantum yield, a ratio describing the amount of light generated by the material versus the amount of energy put in. The greater the emission of light, the higher the quantum yield and the better the material quality, sciencenewsline.com wrote.
 

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