Recently, a research team helmed by Professor Zhao Yixin from the School of Environmental Science and Engineering at Shanghai Jiao Tong University unveiled a research paper in the prestigious journal Nature. The paper introduces a groundbreaking concept—the 'matrix-confined molecular layer' hole transport layer. This innovative breakthrough transcends the constraints of conventional self-assembled monolayer systems, paving the way for a novel technological approach to charge transport layers. These new layers boast broad molecular applicability and high process scalability. This technology effectively tackles issues like uneven thin films and unstable interfaces that often arise during the preparation of perovskite photovoltaic modules. Through a collaborative effort with CATL's 21C Innovation Lab, the research team successfully crafted a large-scale perovskite photovoltaic module measuring 1m×2m. This module achieved a remarkable photoelectric conversion efficiency exceeding 20%, thereby setting a new world record in this domain.