LAUSR

Abstract The newer route of poly (ethylene glycol) (PEG) stabilized the cesium lead iodide (PEG-CsPbI3) light-absorber have prepared for Inorganic perovskite solar cell application. The prepared PEG-CsPbI3, uniform multicrystalline growth on the electrode surface and surface morphologies were observed by the high resolution-tunneling electron microscopy and scanning electron microscopy. PEG-CsPbI3 is in black color cubic crystalline phase at 350 °C that results confirmed by X-ray diffraction pattern. Also, the cubic nature is confirmed through that selected area electron diffraction pattern. From the Fourier transform-infrared spectra, the functional groups of cesium, lead hydroxide and Pb-I-Pb stretching vibrations and the relevant frequency modes is confirmed. The current-voltage curves at 10 mV/S scan rate are performed in the two different directions. The PEG-CsPbI3 coated photo-anode stability is monitored through forward and reverse scan direction maximum 25 days, 3.01% of the average efficiency is achieved by in the 20th days stabilized device, particularly in the reverse scan.