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Years Active: 2004-2015
Title: The Innovative Contributions of Kin Man Yu
Introduction
Kin Man Yu is a prominent inventor based in Lafayette, CA (US). He has made significant contributions to the field of solar energy through his innovative inventions. With a total of 8 patents, Yu has focused on developing advanced technologies that enhance the efficiency of solar cells.
Latest Patents
One of Yu's latest patents is for dilute group III-V nitride intermediate band solar cells with contact blocking layers. This invention provides an intermediate band solar cell (IBSC) that includes a p-n junction based on dilute III-V nitride materials. The design features a pair of contact blocking layers positioned on opposite surfaces of the p-n junction. These layers electrically isolate the intermediate band of the p-n junction by blocking charge transport in the intermediate band. This innovative approach does not affect the electron and hole collection efficiency of the p-n junction. As a result, it increases the open circuit voltage (V) of the IBSC and enhances the photocurrent by utilizing the intermediate band to absorb photons with energy below the band gap of the absorber layers. Consequently, the overall power conversion efficiency of an IBSC is significantly higher than that of a conventional single junction solar cell. Additionally, the p-n junction absorber layers may have compositionally graded nitrogen concentrations to provide an electric field for more efficient charge collection.
Career Highlights
Throughout his career, Kin Man Yu has worked with esteemed organizations such as the University of California and Rosestreet Labs Energy, Inc. His work has been instrumental in advancing solar technology and improving energy efficiency.
Collaborations
Yu has collaborated with notable individuals in the field, including Wladyslaw Walukiewicz and Junqiao Wu. These collaborations have further enriched his research and development efforts.
Conclusion
Kin Man Yu's innovative work in the field of solar energy has led to significant advancements in solar cell technology. His contributions continue to influence the industry and pave the way for more efficient energy solutions.