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United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
This disclosure provides systems, methods, and apparatus related to photodetectors. In one aspect, a photodetector device comprises a substrate, a polycrystalline layer disposed on the substrate, and a first electrode and a second electrode disposed on the polycrystalline layer. The polycrystalline layer comprises nanograins with grain boundaries between the nanograins. The nanograins comprise a semiconductor material. A doping element comprising a halogen is segregated at the grain boundaries. A length of the polycrystalline layer is between and separating the first electrode and the second electrode.
Alivisatos, A. Paul (Berkeley, CA), Salmeron, Miquel (Kensington, CA), Zhang, Yingjie (Urbana, IL), Hellebusch, Daniel J. (Oakland, CA)
The Regents of the University of California (Oakland CA)
15/ 359,882
November 23, 2016
STATEMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy. The government has certain rights in this invention.