Fig. 3: NMR spectra of the interaction between [Bcmim]Cl and MACl. | Nature

Fig. 3: NMR spectra of the interaction between [Bcmim]Cl and MACl.

From: Dopant-additive synergism enhances perovskite solar modules

Fig. 3

a, 1H NMR spectra of MACl solution as a function of concentration for four ionic liquids: [Bcmim]Cl, 1-cyanomethyl-3-methylimidazolium chloride ([Cmmim]Cl), 1,3-dimethylimidazolium chloride ([Dmim]Cl) and 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). Full width at half maximum (FWHM) shift (b) and chemical shift of the MA+ NH peak as a function of ionic liquid/MACl concentration ratio (c).

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