含不同杂原子共轭单元的有机光敏染料的超快发光动力学 刘娇,霍继存,张敏,董献堆 1 中国科学院长春应用化学研究所，长春130022 2 天津理工大学新能源材料与低碳技术研究院，天津300384 3 中国科学院大学，北京100049 Normalized absorption transients upon nanosecond laser pulse excitation of transparent titania films grafted with: (a) C210, (c) C214, and (e) C216 immersed in an inert electrolyte composed of 0.5 mol·L –1 N -butylbenzoimidazole (NBB) in EMITFSI; (b) C210, (d) C214, and (f) C216 immersed in an ionic liquid composite electrolyte. The excitation wavelength was selected according to a 0.5 optical density of dye-grafted titania films to yield an alike distribution profile of vertically excited states in our testing samples. Excitation wavelength: 579 nm for C210, 596 nm for C214, and 620 nm for C216 in contact with an inert electrolyte, while 583 nm for C210, 595 nm for C214, and 619 nm for C216 in contact with an ionic liquid composite electrolyte. Pulse fluence: 20 μJ·cm –2 . Probe wavelength: 785 nm. Multi-exponential fittings were shown as solid gray lines. 物理化学学报,2018,34(4),424-436.DOI:10.3866/PKU.WHXB201709082