Study on the Effect of Synthesis Temperature on the Structural, Surface Morphological and Optical Properties of Methyl Ammonium Lead Iodide Nanoparticles by Sol-Gel Method

International Conference on Advances in Materials and Manufacturing Applications 2016

Beegum, K.A. Benazeera^1,2 ; Paulose, Maria^1 ; Peter, V.J.^3 ; Raphael, Rakhy^1 ; Sreeja, V.G.^1 ; Anila, E.I.^1

Optoelectronic and Nano Materials' Research Lab, Department of Physics, Union Christian College, Aluva, Kerala

683102, India^1

PJMSGHSS, Kandassankadavu, Thrissur, Kerala

680613, India^2

St.Pauls College, Kalamassery, Kerala

683503, India^3

关键词: Diffuse reflectance spectroscopy;    Elemental contents;    Energy dispersive analysis of X-rays;    Hydroiodic acid;    Perovskite films;    Photo-voltaic efficiency;    Synthesis temperatures;    Tetragonal structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012078/pdf
DOI  :  10.1088/1757-899X/149/1/012078

来源: IOP

【 摘 要 】

Lead halide perovskite solar cells have recently attracted tremendous attention because of their excellent photovoltaic efficiency. The quality and stability of perovskite films are critical for solar cells. We report the synthesis of methyl ammonium lead iodide (MAPbKI3) nanoparticles from methyl amine, hydroiodic acid and lead iodide by sol-gel method. Three powder samples of Methyl ammonium Lead Iodide were prepared at 50 °C, 90 °C, and 100 °C. The powder samples were characterised by X-ray diffraction (XRD), Diffuse reflectance spectroscopy (DRS), Scanning Electron Microscopy (SEM), Energy Dispersive Analysis of X- rays (EDAX) and Photoluminescence (PL). The presence of carbon, hydrogen and nitrogen were examined through CHN studies. The surface morphology, band gap, and elemental contents changes with temperature. The XRD pattern exhibited major reflections from (110), (220), (310), (224) and (314) planes in agreement with JCPDS file No: 00-021-1276, revealing tetragonal structure.