© 2019, IJSRPAS All Rights Reserved 24 International Journal of Scientific Research in ______________________________ Research Paper . Physics and Applied Sciences Vol.7, Issue.2, pp.24-26, April (2019) E-ISSN: 2348-3423 DOI: https://doi.org/10.26438/ijsrpas/v7i2.2426 Synthesis and Characterization of High-Performance Solar Cell A. Verma 1 *, A.K. Diwakar 2 , R.P. Patel 3 1,2,3 Department of Physics, Kalinga University, Atal Nagar, Raipur (C.G.), India * Corresponding Author: alokeverma1785@gmail.com Available online at: www.isroset.org Received: 07/Apr/2019, Accepted: 18/Apr/2019, Online: 30/Apr/2019 Abstract— High-performance solar-cell is designed for lead-free perovskite materials, synthesis of using for the organometallic halides. The perovskite materials having a high-efficiency charge carrier and identified low-cost materials based commercial photo-voltaic cell. It is an unusually breakthrough of the drawback of high-efficiency photo-voltaic solar- cell because in this solar-cell replaced harmful lead using various perovskite materials like (Sn 2+ , Ge 2+ , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ , Cu 2+ , Fe 2+ , Pd 2+ , and Eu 2+ ). We predict the structure and optical properties of perovskite solar-cell based on Ge and Sn solid solutions, CH 3 NH 3 Sn (1−x) Ge x I 3 (0 ≤ x ≤ 1). This material is having the band gaps from 1.3 to 2.0 eV, and it is suitable for an optoelectronic application's range, from single junction devices and top cells for placement to light-emitting layer. The power efficiency of lead-free perovskite solar-cell (LFPSCs) is more than 27%. Which has ABO 3 type orthorhombic crystal structure and successfully examine its structure using X-ray diffraction (XRD) technology. In this research, we synthesis successfully lead-free perovskite solar-cell (LFPSCs). Keywords— Perovskite material; Solar-cell; X-ray diffraction (XRD); Halides; Inorganic cation and anion; Methyl-ammonium. I. INTRODUCTION Last few years, in this field lots of work and developing many new types of solar cell material. Lead is a very harmful element for our environment. So we work on this field and remove to lead in solar cell and developing new type solar cell synthesis from Sn and Ge. It’s a fourth generation solar cell full fill our requirement of energy and more efficient from the traditional solar cell. Perovskites material having lots of physical property one of the most important properties of these materials easily shows the PV properties. In this research we use orgenomatlic perovskite solar cell material CH 3 NH 3 Si (1-x) Ge x I 3 (x = 0.1, 0.2, 0.3, 0.4, 0.5) [1].This solar cell performance high efficient solar cell and having a traditional perovskite structure. Remarkable work on thin film fabrication such as thermal co-evaporation in high vacuum, sequential deposition, vapor assisted solution process (VASP), chemical vapor deposition, solvent engineering, intermolecular exchange, has led to this extreme development [2]. The lead-free perovskite materials for solar cell application reported so far, tin-based perovskites which have the chemical formula of ASnX 3 where A can be Ge, methylammonium (MA) and X can be I, Br, Cl or F, are the most promising substitutions since Sn and Pb both belong to group 14 of the periodic table and thus are predictable to possess comparable physical and chemical properties. As a result, the nature of the chemical bonding becomes more covalent in the case of ASnI 3 systems because of the relatively larger degree of orbital overlap in the shorter Sn-I bond compared to the Pb-I bond. The consequences of this subtle difference in chemical bonding have a strong impact on the semiconducting properties of the materials. II. EXPERIMENTAL METHOD First, of make 4 mm TiO 2 thin layer using by sole-gel process and vapor deposition of a compact layer of TiO 2 using annealing at 450C for 30 minutes, and after then cooled at room temperature gradually. After the TiO 2 layer prepared CH 3 NH 3 Sn (1-x) Ge x I 3 active layer. The synthesis of CH 3 NH 3 Sn (1-x) Ge x I 3 using equimolar quantities of CH 3 NH 3 I, SnI 2 and GeI 2 concentration of 45 wt% was dissolved in a mixed solvent of DMF and DMSO-GBL with a ratio of 3.5:7. The schematic of the active layer deposition is shown in Fig. 2 [3]. The precursor solutions were spin coated onto TiO2 coated substrates to form a dark-brown tin perovskite layer [4]. Because of the CH 3 NH 3 Sn (1-x) Ge x I 3 gradually decomposed in the air, all the preparation of CH 3 NH 3 Sn (1- x) Ge x I 3 films were performed in the nitrogen glove box to avoid hydrolysis and oxidation of tin perovskite layer in contact with rotating air [4]. Now successfully prepared lead- free perovskites solar cell (LFPSCs) using the organometallic compound.