Currently, the p-doping process, achieved by the ingress and diffusion of oxygen into the hole transporting layer, is time intensive (several hours to a day), making commercial mass production of perovskite solar cells impractical. The Tandon team, led by André D. Taylor, a professor of chemical and biomolecular engineering at NYU Tandon, and Jaemin Kong, a post-doctoral associate, discovered a method of vastly increasing the speed of this key step through the use of carbon dioxide (CO2) instead of oxygen. The research, “CO2 doping of organic interlayers for perovskite solar cells,” appears in
Background. In perovskite solar cells, doped organic semiconductors are normally required as charge-extraction interlayers situated between the photoactive perovskite layer and the electrodes. The conventional means of doping these interlayers involves the addition of lithium bis(trifluoromethane)sulfonimide (LiTFSI), a lithium salt, to spiro-OMeTAD, a π-conjugated organic semiconductor
A closer look at how COVID-19 damages human lungs
A recent study conducted at the United States Department of Energy’s (DOE) Brookhaven National Laboratory provides the first atomic-level detailed model of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) envelope protein when bound to human proteins within the lungs. The study was recently published in
The utility of cryo-EM
Cryo-electron microscopy (cryo-EM) is a high-resolution imaging technology that uses frozen samples, gentle electron beams, and sophisticated imaging software to acquire highly detailed images. The electrons used in cryo-EM, as well as other forms of EM, allow scientists to visualize biological molecules at a much smaller scale as a result of their extremely short wavelength. In fact, it is estimated that the wavelength of electrons is 100,000 times shorter than that of visible light.
A new quantum computing hub is growing in Greater Washington — and could reap serious rewards bizjournals.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bizjournals.com Daily Mail and Mail on Sunday newspapers.
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Valedictorian Ashlynne Xavier and Salutatorian Fiona McEvoy, who are seen here with Rocky Point High School Principal Jonathan Hart, will be leading the Class of 2021. (Rocky Point School District
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Rocky Point High School 2021 Valedictorian Ashlynne Xavier. (Rocky Point School District
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Rocky Point High School Salutatorian Fiona Grace McEvoy. (Rocky Point School District
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ROCKY POINT, NY Rocky Point High School officials have named Ashlynne Xavier the Class of 2021 s valedictorian, and Fiona McEvoy, its salutatorian.
Xavier has made the most out of her high school career, taking part in Stony Brook University s Women in Science and Engineering program and the high school s science research program, according to a school district news release. She plays viola in the pit orchestra, is a member of the Human Rights Club, and has played soccer and lacrosse at both the junior varsity and varsity levels, school district officials said.