High Efficiency Perovskite Solar Cells Fabricated under Ambient Conditions with Mesoporous TiO2/In2O3 Scaffold
Mesoscopic perovskite solar cells (mp-PSCs) with mesoporous bilayer were fabricated under ambient conditions. The bilayer was formed by capping the mesoporous TiO2 layer with a layer of In2O3. CH3NH3I3-xClx mixed halide perovskite was prepared through the one-step method and was used as the light absorber. The mp-PSCs with the composite TiO2/In2O3 mesoporous layer exhibited optimized electrical parameters, compared with the PSCs that employed only a TiO2 mesoporous layer, with a current density of 23.86 mA/cm2, open circuit voltage of 0.863 V, fill factor of 0.6 and a power conversion efficiency of 11.2%. These results indicate that the formation of a proper semiconductor capping layer over the basic TiO2 mesoporous layer can facilitate the electron transfer, suppress the recombination and subsequently lead to higher charge collection efficiency.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1130115Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1143
 M. M. Lee, J. Teuscher, T. Miyasaka, T. N. Murakami and H. J. Snaith, “Efficient Hybrid Solar Cells Based on Meso-Superstructured Organometal Halide Perovskites”, Science, vol. 338, pp. 643−647, May 2012.
 M . Saliba, T. Matsui, J.-Y. Seo, K. Domanski, J.-P. Correa-Baena, M. K. Nazeeruddin, S. M. Zakeeruddin, W. Tress, A. Abate, A. Hagfeldt and M. Grätzel, “Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency”, Energy Environ. Sci., vol. 9, pp. 1989-1997, Mar. 2016.
 M. A. Green, A. Ho-Baillie and H. J. Snaith, “The emergence of perovskite solar cells”, Nat. Photon., vol. 8, pp. 506-514, June 2014.
 S. Luo, W. A. Daoud, “Recent progress in organic-inorganic halide perovskite solar cells: mechanisms and materials design”, J. Mater. Chem. A, vol. 3, pp. 8992-9010, Nov. 2014.
 N. J. Jeon, J. H. Noh, W. S. Yang, Y. C. Kim, S. Ryu, J. Seo and S. II Seok, “Compositional engineering of perovskite materials for high-performance solar cells”, Nature, vol. 517, no. 7535, pp. 476-480, Jan. 2015.
 S. Gamliel and L. Etgar, “Organo-metal perovskite based solar cells: sensitized versus planar architecture”, RSC Adv., vol. 4, pp. 29012-29021, June 2014.
 M. Liu, M. B. Johnston and H. Snaith, “Efficient planar heterojunction perovskite solar cells by vapour deposition”, Nature, vol. 501, pp. 395-398, Sept. 2013.
 X. Xu, H. Zhang, J. Shi, J. Dong, Y. Luo, D. Li and Q. Meng, “Highly efficient planar perovskite solar cells with a TiO2/ZnO electron transport bilayer”, J. Mater. Chem. A, vol. 3, pp. 19288-19293, Aug. 2015.
 S. Yang, Y. Chen, Y. C Zheng, X. Chen, Y. Hou and H. G. Yang, “Formation of high-quality perovskite thin film for planar heterojunction solar cells”, RSC Adv., vol. 5, pp. 69502-69508, Aug 2015.
 N. J. Jeon, J. H. Noh, Y. C. Kim, W. S. Yang, S. Ryu, S. II Seok, “Solvent engineering for high-performance inorganic-organic hybrid perovskite solar cells”, Nature Materials, vol. 13, pp. 897-903, July 2014.
 N. G. Park, “Organometal perovskite light absorbers toward a 20% efficiency low-cost solid –state mesoscopic solar cell”, J. Phys. Chem., vol. 4, no. 15, pp. 2423-2429, July 2013.
 J. Cui, H. Yuan, J. Li, X. Xu, Y. Shen, H. Lin, M. Wang, “Recent progress in efficient hybrid lead halide perovskite solar cells”, Sci. Technol. Adv. Mater., vol. 16, article 036004, pp. 1-14, June 2015.
 Y. Numata, Y. Sanehira and T. Miyasaka, “Impacts of heterogeneous TiO2 and Al2O3 composite mesoporous scaffold on formamidinium lead trihalide perovskite solar cells”, ACS Appl. Mater. Interfaces, vol. 8, no. 7, pp. 4608-4615, Febr. 2016.
 M. Che, L. Zhu, Y. L. Zhao, D. S. Yao, X. Q. Gu, J. Song, Y. H. Qiang, “Enhancing current density of perovskite solar cells using TiO2-ZrO2 composite scaffold layer”, Mater. Sci. Semicond. Process, vol. 56, pp. 29-36, Decem. 2016.
 A. Apostolopoulou, E. Vitoratos, P. Lianos, E. Stathatos, “Quasi solid-state photoelectrochemical cells combining nanocomposite semiconductors”, in Proc. 15th IEEE International Conf. on Nanotechnology, Rome, 2015, pp. 1374-1377.
 Z. Liu, K. Pan, M. Liu, M. Wang, Q. Lü, J. Li, Y. Bai, T. Li, “Al2O3-coated SnO2/TiO2 composite electrode for the dye-sensitized solar cells”, Electrochim. Acta, vol. 50, pp. 2583-2589, Apr. 2005.
 A. Rapsomanikis, D. Karageorgopoulos, P. Lianos, E. Stathatos, “High performance perovskite solar cells with functional highly porous TiO2 thin films constructed in ambient air”, Solar Energy Mater. Solar Cells, vol. 151, pp. 36-43, July 2016.