Effect of Methylammonium Iodide (CH3NH3PbI3) Perovskite Concentration on the Performance of Perovskite Solar Cell
The effect of Methylammonium Iodide (CH3NH3PbI3) perovskites (MIP) concentration on the performance of perovskites sensitized solar cell (PSC) was studied. Three MIP concentrations, namely 0.2, 0.4, and 1.0 M were prepared. In this study PSC with a sandwich structure of ITO/TiO2/ MIP /electrolyte/ Pt film was fabricated for this purpose. It was found that power conversion efficiency (PCE) increased with the increasing the concentration of MIP, from 0.01 to 0.21 % as the concentration increase from 0.2 to 1.0 M. Photoluminescence (PL) study showed that the increase of the MIP concentration decrease therecombination of carrier in the device. Electrochemical impedance spectroscopy (EIS) analysis also shows that with the increased of MIP concentration results in the decreased of the Rct due to the improvement of the carrier transport in the devices.
 Q. Chen, H. Zhou, Z. Hong, S. Luo, H. S. Duan, H. H. Wang, Y. Liu, G. Li, and Y. Yang, Planar heterojunction perovskite solar cells via vapor-assisted solution process, J Am Chem Soc, 136, 622–625, (2014).
 W. Abu Laban and L. Etgar, Energy Environ Sci, 6, 3249–3253, (2013).
 A. A. Umar, S. Nafisah, S. K. M. Saad, S. T. Tan, A. Balouch, M. M. Salleh, and M. Oyama, Sol Energy Mater Sol Cells, 122, 174–182, (2014).
 C. R. Li, H. T. Deng, J. Wan, Y. Y. Zheng, and W. J. Dong, Photoconductive properties of organic–inorganic hybrid perovskite (C6H13NH3)2(CH3NH3)m−1PbmI3m+1:TiO2 nanocomposites device structure, Mater Lett, 64, 2735–2737, (2010).
 J. You, Z. Hong, Y. Yang, Q. Chen, M. Cai, T. Bin Song, C. Chao Chen, S. Lu, Y. Liu, H. Zhou, and Y. Yang, Nano Lett, (2014).
 H. S. Kim, C. R. Lee, J. H. Lm, K. B. Lee, T. Moehl, A. Marchioro, S. J. Moon, R. H. Baker, J. H. Yum, J. E. Moser, and M. Gratzel, Sci Rep, 2, p. 3, (2012).
 V. Dhas, S. Muduli, S. Agarkar, A. Rana, B. Hannoyer, R. Banerjee, and S. Ogale, Sol Energy Mater Sol Cells, 85, 1213–1219, (2011).
 G. Maculan, A. D. Sheikh, A. L. Abdelhady, M. I. Saidaminov, M. A. Haque, B. Murali, E. Alarousu, O. F. Mohammed, T. Wu, and O. M. Bakr, CH3NH3PbCl3 Single Crystals: Inverse Temperature Crystallization and Visible-Blind UV-Photodetector, J Phys Chem Lett, 6, 3781–3786, (2015).
 L. Etgar, P. Gao, Z. Xue, Q. Peng, A. K. Chandiran, B. Liu, M. K. Nazeeruddin, and M. Grätzel, Mesoscopic CH3NH3PbI3/TiO2 heterojunction solar cells, J Am Chem Soc, 134, 17396–17399, (2012).