After three years of grinding a sword, the team of Professor Yang Xudong of Shanghai Jiaotong University issued Science again

High-efficiency perovskite solar cells continue to set efficiency records, but their stability still faces huge challenges

Constantly breaking through the stability problem of perovskite batteries, he has published many top papers

Professor Yang Xudong has been working in the field of semiconductor physics and semiconductor materials for 20 years, after entering the research field of halide perovskite materials and devices, focusing on the international problem of poor stability of materials and devices, focusing on its deep mechanism and material properties, for the pain point problem of iodine ions diffusing easily and destroying battery performance, successively in perovskite thin film crystallization (Nature 2017, 550, 92), perovskite heterojunction structure stability (Science 2019, 365, 687) and other key issues published by the first corresponding author papers

Perovskite photovoltaics are in the ascendant boost China's energy strategic layout

With the development of society and population growth, the energy crisis and environmental problems are becoming increasingly prominent, threatening the long-term survival and development of

A: Regulation of charge distribution in the hole transport layer by ion exchange strategy; B: Hole conductivity increase; C: Energy level distribution regulation; D: Schematic diagram of energy level distribution; E: Conductivity under 120 degrees thermal aging; F: Conductivity under iodine ion invasion

In this work, Professor Yang Xudong's team reported the stabilization strategy and internal mechanism

The research work was supported

Future outlook

Encouraged by the national policies of "carbon peaking" and "carbon neutrality", as well as the background of global energy and environmental problems, scientific research and industrial technology in the field of perovskite solar cells in China have flourished