The latest edition of the World Record for Solar Cell Efficiency was released on 27 November 2020. The perovskite solar module created by Professor Jinsong Huang and Dr. Yee-hao Deng from the University of North Carolina at Chapel Hill in the United States increased the photoelectric conversion efficiency to 18.6 percent under 30 cm2 of light area, setting a new world record.

Latest Solar Cell Efficiency Record Form (57th Edition)

The perovskite solar panel efficiency test was conducted by the National Renewable Energy Laboratory (NREL) and certified (part of the certificate is shown below). The strict steady-state certification method required that the relative fluctuation of the output power of the battery component under each test voltage within a total time of more than 10 minutes was less than 0.1%, which reflected that the battery component had high efficiency and high stability during the test.
Certification certificate

Professor Huang Jinsong said, "In the past five years, we have successfully developed a set of low-cost scraping and coating processes that can rapidly prepare perovskite films in atmospheric environment, greatly reducing the cost of perovskite battery modules. This time, we further developed a new type of perovskite that does not contain methylamine ions, achieving the purpose of improving efficiency and stability at the same time. We are very happy to see that all the inventions can be put together effectively."
Efficiency and stability remain the major constraints to large-scale deployment of clean photovoltaic energy, and determine the cost of photovoltaic power generation systems. In response to this challenge, the Ministry of Science and Technology of China has put forward specific requirements for the development of perovskite solar cell technology in the guidelines for the 2019 and 2020 "Renewable Energy and Hydrogen Energy Technology" key special application. This performance improvement makes perovskite solar cell modules closer to practical application.
Several companies have expressed interest in using the technology to commercialize perovskite.






Major team members:

Deng Ye-hao: Postdoctoral fellow and chief scientist, Perotech Inc., Department of Applied Physics, University of North Carolina at Chapel Hill. He received his Ph.D. in Applied Physics from the University of North Carolina at Chapel Hill in 2019. The main research direction is efficient and stable large-area perovskite solar cell module. Apply for three patents for invention. She has published 10 papers on journals such as Nature Energy, Science Advances, Joule, Energy & Environmental Science, Advanced Materials, and Advanced Energy Materials, citing factor H 36 for more than 6000 times. Relevant research results have been highlighted twice by Nature Energy.

Deng Ye-hao: Postdoctoral fellow and chief scientist, Perotech Inc., Department of Applied Physics, University of North Carolina at Chapel Hill. He received his Ph.D. in Applied Physics from the University of North Carolina at Chapel Hill in 2019. The main research direction is efficient and stable large-area perovskite solar cell module. Apply for three patents for invention. She has published 10 papers on journals such as Nature Energy, Science Advances, Joule, Energy & Environmental Science, Advanced Materials, and Advanced Energy Materials, citing factor H 36 for more than 6000 times. Relevant research results have been highlighted twice by Nature Energy.

Source: Nano