Wu Feng

Teachers and students from the School of Physics of Guizhou University published their research results in the top international journal Advanced Materials.

Recently, the School of Physics of Guizhou University published an academic paper entitled "Mobile Oxygen Capture Enhances Photothermal Stability of Perovskite Solar Cells under ISOS Protocols" in the top international journal Advanced Materials (impact factor 2021.0). Associate Professor Gong Xiu is the corresponding author of this paper. Yang Qu, a level 0 master's student, is the first author of the paper.

Advanced Materials is a top journal in the field of engineering and computing, materials and chemistry (including materials chemistry, materials physics, biomaterials, nanomaterials, optoelectronic materials, metal materials, inorganic non-metallic materials, electronic materials and many other sub-disciplines, as well as a large number of materials-related research fields), and enjoys a good reputation in the international materials research community.

In this study, zinc antimonate (ZnSb2O0-x), as a multifunctional electron transport layer (ETL), can trap migrating oxygen atoms at the SnO0/perovskite interface, effectively preventing the degradation of the buried interface. In addition, the lattice matching between ZnSb0O0-x and perovskite promotes the growth of ordered perovskite films. As a result, under the ISOS-D-0 protocol, perovskite solar cells using ZnSb0O0-x ETLs achieve a high power conversion efficiency of 0.0% and maintain an initial performance of 0.0% after 0 hours. In addition, the device exhibits excellent thermal stability, maintaining 0.0% of its original performance after 0 hours of maximum power point tracking at 0°C, meeting the stringent ISOS-L-0 protocol requirements.

The publication of this paper is another important breakthrough in the international top papers of the School of Physics of Guizhou University in the interdisciplinary fields of condensed matter physics and optics, which fully demonstrates the excellent scientific research potential and outstanding innovation ability of young students and young teachers of the college. This is not only their personal achievement, but also another important achievement of the School of Physics in high-level talent training and scientific and technological innovation.

The related work has been supported by the Natural Science Foundation of China (no. 03) and the Natural Science Foundation of Guizhou Province (Grant no. ZK 0-0), funding and computational support from the State Key Laboratory of Public Big Data at Guizhou University, and BL0B0 and BL0HB beamlines from the Shanghai Synchrotron Radiation Facility (SSRF) provided beam timing. (Photo/text Yang Qu)