@article{Du2022, 
author = {Yujing Du and Shiping Wang and Lei Wang and Shengye Jin and Yifan Zhao and Tai Min and Zhuangde Jiang and Ziyao Zhou and Ming Liu},
title = {Improving solar control of magnetism in ternary organic photovoltaic system with enhanced photo-induced electrons doping},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {3},
pages = {2626-2633},
keywords = {magnetic anisotropy, multiferroic heterostructure, magnetoelectric coupling, ferromagnetic resonance, interface charge doping},
url = {https://www.sciopen.com/article/10.1007/s12274-021-3841-x},
doi = {10.1007/s12274-021-3841-x},
abstract = {The growing demand for storage space has promoted in-depth research on magnetic performance regulation in an energy-saving way. Recently, we developed a solar control of magnetism, allowing the magnetic moment to be manipulated by sunlight instead of the magnetic field, current, or laser. Here, binary and ternary photoactive systems with different photon-to-electron conversions are proposed. The photovoltaic/magnetic heterostructures with a ternary system induce larger magnetic changes due to higher short current density (JSC) (20.92 mA·cm−2) compared with the binary system (11.94 mA·cm−2). During the sunlight illumination, ferromagnetic resonance (FMR) shift increases by 80% (from 169.52 to 305.48 Oe) attributed to enhanced photo-induced electrons doping, and the variation of saturation magnetization (MS) is also amplified by 14% (from 9.9% to 11.3%). Furthermore, photovoltaic performance analysis and the transient absorption (TA) spectra indicate that the current density plays a major role in visible light manipulating magnetism. These findings clarify the laws of sunlight control of magnetism and lay the foundation for the next generation solar-driven magneto-optical memory applications.}
}