异质结
放松(心理学)
电子
自旋(空气动力学)
光诱导电子转移
化学物理
电子转移
从头算
自旋工程
化学
材料科学
凝聚态物理
光电子学
物理
自旋极化
物理化学
量子力学
有机化学
热力学
社会心理学
心理学
作者
Yuli Lei,Zhenfa Zheng,Luis Vásquez,Jin Zhao,Jing Ma,Haibo Ma
标识
DOI:10.1021/acs.jpclett.2c01177
摘要
The circumstances of transferred electrons across organic/inorganic interfaces have attracted intensive interest because of the distinctive electronic structure properties of those two components. Leveraging ab initio nonadiabatic molecular dynamics methods in conjunction with spin dynamics induced by spin-orbital couplings (SOCs), this study reports two competitive channels during photoinduced dynamical processes in the prototypical ZnPc/monolayer MoS2 heterojunction. Interestingly, the electron-transfer and relaxation processes occur simultaneously because of the enhancement of electron-phonon couplings and expansion of dynamical pathways by SOCs, suggesting that the electron-transfer rate and relaxation processes can be tuned by SOCs, hence yielding the performance promotion of photovoltaic and photocatalytic devices. Additionally, approximately half of the transferred electrons flip their spin within 1.6 ps because of strong SOCs in MoS2, achieving great agreement with experimental measurements. This investigation provides instructive perspectives for designing novel devices and applications based on organic/inorganic heterojunctions, demonstrating the importance of spin dynamics simulations in exploring sophisticated photoinduced processes in materials.
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