MAPbCl3钙钛矿中甲胺阳离子运动的固体2H NMR研究 |
梁佳琪,乔文成,姚叶锋 |
Solid-state 2H NMR Study of the Motion of CH3NH3+ in MAPbCl3 Perovskite |
Jia-qi LIANG,Wen-cheng QIAO,Ye-feng YAO |
图4 (a) MA的运动模型Ⅲ;(b)基于模型Ⅲ的拟合2H NMR谱,拟合过程中,Ω=1 000 kHz,θ值从50˚增加到60˚;(c)基于模型Ⅲ的拟合2H NMR谱,拟合过程中,θ=54.7˚,Ω值从100 kHz增加到2 000 kHz.为了使图更加清晰,MA中部分原子被省略 |
Fig.4 (a) The motion model Ⅲ of MA cation; (b) Simulated 2H NMR spectra based on the motion model Ⅲ. In the simulation, Ω is set to 1 000 kHz and θ varies from 50˚ to 60˚; (c) Simulated 2H NMR spectra based on the motion model Ⅲ. In the simulation, θ is set to 54.7˚ and Ω varies from 100 kHz to 2 000 kHz. Some atoms in the MA cation are omitted for clarity |