Jingbi You

Perovskite & Organic devices

Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China

Email: jyou@semi.ac.cn

Biography

Jingbi You, he got his PhD degree from Institute of Semiconductors, Chinese Academy of Sciences in 2010. And then he worked as postdoc at University of California, Los Angeles, USA. He moved back to Institute of Semiconductors, Chinese Academy of Sciences as a full professor, now his research interests mainly in perovskite optoelectronic devices, including solar cells, light-emitting diodes. He has published over than 100 papers. The total citation of his paper is over than 30000 times.

Abstract for Presentation

Efficient perovskite solar cells and light-emitting diodes

Halide perovskite materials own excellent semiconductor properties, which showed great potential in photovoltaic and emission display. In this talk, I will summarize our recent work in perovskite solar cells (PSCs) and light-emitting didoes (PeLEDs). 1). By charge transport layer and perovskite composition engineering, for the bandgap around 1.5 electron volt, we have achieved close to 25 percent efficiency with the FF around 85 percent of organic-inorganic PSCs; 2). By surface re-construction, we have pushed the PCE of inorganic perovskite CsPbI3 based solar cells to 20 percent efficiency; 3). According to several strategies, such as non-radiative recombination suppression, band structure modulation and charge injection balance, we have achieved over than 25 and 16 percent external quantum efficiency electroluminescence in red and blue region, respectively.

References

[1] Z. Chu et al., Nature Communications, 2020, 11, 4165.

[2] Q. Jiang et al., Nature Photonics, 2019, 13, 460.

[3] Q. Jiang et al., Nature Energy, 2016, 2, 16177.

[4] P. Wang et al., Nature Communications, 2018, 9, 2225.

[5] Q. Ye et al., Advanced Materials, 2019, 31, 1905143.