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Gwangju Institute of Science and Technology researchers demonstrate improved performance of transition metal oxide based organic miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
Innovative Process That Removes Key Hurdle for Next-Generation Solar Cells Is Also a Lockbox for Greenhouse Gases bnl.gov - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bnl.gov Daily Mail and Mail on Sunday newspapers.
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 semicon ....
Perovskite solar cells have progressed in recent years with rapid increases in power conversion efficiency, making them more competitive with silicon-based photovoltaic cells. ....
A team at the NYU Tandon School of Engineering has advanced a critical step in fabrication of Perovskite solar cells: p-type doping of organic hole-transporting materials within the cells. The research, CO2 doping of organic interlayers for perovskite solar cells, appears in Nature. ....