Abstract:
Perovskite solar cells have attracted significant
attention from the scientist and the industrialists because of the
high efficiency. But the fabrication of high-quality film which
controls the cell performances is a very difficult task. In this
study methylammonium lead iodide perovskite (CH3NH3PbI3)
material was synthesized using a two-step spin coating method;
first, apply lead iodide (PbI2) and then methylammonium iodide
(CH3NH3I, MAI). Fabricated films were analyzed by X-Ray
Diffraction (XRD) and Scanning Electron Microscope (SEM). It
confirmed that the methylammonium lead iodide (CH3NH3PbI3)
perovskite structured material with an average crystal size of
350 nm was formed. And also, the effect of morphological
changes with the concentration of MAI was studied. SEM
images show the enhancement of the film quality by decreasing
the MAI concentration. And also. the maximum fill factor of
0.32 has been achieved with the lowest MAI concentration
(0.1M).
Citation:
W. A. I. Anuruddha, K. M. Arush and G. A. Sewvandi, "Effect of CH3NH3I Concentration on Performances of the Perovskite Solar Cells," 2020 Moratuwa Engineering Research Conference (MERCon), 2020, pp. 220-223, doi: 10.1109/MERCon50084.2020.9185379.
