Recently, the School of Physics of Zhengzhou University has made important progress in regulating perovskite solar cells based on the interface of rare earth doped nanocrystals. The relevant results have been published in the internationally renowned journal Nano Energy as a paper entitled “Europium Ions Doped Wox Nanorods for Dual Interfacial Modification Facilitating High Efficiency and Stability of Perovskite Solar Cells”. Dr. Chen Xu, a young teacher from the School of Physics, is the first author. Associate Professor Shi Zhifeng, associate professor Xu Wen and professor Song Hongwei from Jilin University are the corresponding authors; Zhengzhou University is the first author affiliation.