Effect of tertiary butylpyridine in stability of methylammonium lead iodide perovskite thin films

被引：6
作者：
Ezike, S. C. [1 ,3 ]
Alabi, A. B. [1 ,2 ]
Ossai, A. N. [1 ]
Aina, A. O. [1 ]
机构：
[1] Kwara State Univ, Dept Phys & Mat Sci, Malete, Nigeria
[2] Univ Ilorin, Dept Phys, Ilorin, Nigeria
[3] Modibbo Adama Univ Technol, Dept Phys, Yola, Nigeria
来源：
BULLETIN OF MATERIALS SCIENCE | 2020年 / 43卷 / 01期
关键词：
Degradation; perovskite material; surface modification; temperature; thin film; SOLAR-CELLS; CH3NH3PBI3; PEROVSKITE; ANNEALING-FREE; DEGRADATION; EFFICIENCY; TEMPERATURE; DEPOSITION;
D O I：
10.1007/s12034-019-2002-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Perovskite material is a great visible light absorber in perovskite solar cells (PSCs). PSC has reported power conversion efficiency (PCE) of 22.1%. However, performance instability of the solar device base on this material hampers its commercialization. One of the factors responsible for performance instability in the cell is temperature. In this work, we carried out stability study of perovskite film treated with tertiary butylpyridine (tBP) as a surface modifier. Concentrations of tBP added in perovskite material film were varied and the samples were subjected to temperature degradation test in a temperature-controlled chamber for 120 h. Ultraviolet-visible (UV-Vis) spectrophotometers, Fourier-transform infrared (FT-IR) spectrometers and X-ray diffractometers (XRD) were used to characterize the properties of the temperature-stability-tested samples. The results show that the sample treated with 100 mu\of tBP has the best resistance to temperature degradation after the duration of the test. The surface-modified perovskite films, with 100 mu of tBP, may reduce the degradation of PSCs.
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页数：8
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