低维钙钛矿太阳能电池(Low-Dimensional Perovskite Solar Cells,LD PSCs)是一种稳定性好、疏水性强的新型钙钛矿光伏器件,在新能源领域受到了广泛的关注.本实验以领域内的前沿进展为出发点,提供丁胺(Butylammonium,BA)离子、半胱氨酸(2-氨基-3-巯基丙酸,Cysteine,Cys)离子作为有机间隔阳离子,合成了低维钙钛矿晶体并制备出以(BA)2(MA)n-1PbnI3n+1或(Cys)2(MA)n-1PbnI3n+1为活性层的钙钛矿太阳能电池,并通过X射线衍射检测、紫外-可见吸收检测等手段对产品进行表征,之后测定了钙钛矿器件的能量转换效率.本实验难度适中,涉及光伏器件的制备与表征,旨在激励本科生对前沿光电研究产生兴趣、培养其科研能力.
Study on the Fabrication and Photoelectronic Properties of Low-Dimensional Perovskite Solar Cells:A Recommended Comprehensive Chemistry Experiment
Low-dimensional perovskite solar cells(LD PSCs)are a new type of stable and hydrophobic perovskite photovoltaic device,which have attracted broad interest in the field of renewable energy.In this experiment,focusing on the advanced development of LD PSCs,butylammonium and cysteamine(2-Amino-3-mercaptopropionic acid,Cys)are employed as organic spacer cations to synthesize LD perovskite crystals,and(BA)2(MA)n-1PbnI3n+1 or(Cys)2(MA)n-1PbnI3n+1 is used as the active layer to fabricate PSCs.Detections of X-ray diffraction and UV-Vis absorption spectroscopy are employed to characterize the morphology and optical properties of the perovskite film.Finally,the power conversion efficiency of the LD PSCs is measured.The difficulty of this experiment is moderate,involving in the fabrication and characterization of photovoltaic devices.This designed experiment aims for stimulating undergraduates'interest on the cutting-edge optoelectronic research and cultivate their scientific research ability.
Low-dimensional perovskitePerovskite solar cellsComprehensive chemical experimentOptoelectronic properties
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