Controlling the Morphology of CH3NH3PbBr3 Perovskite Films on Planar Substrates

  • Haralds Abolins Amsterdam University College


Hybrid organic-inorganic metal halide perovskites have recently emerged as one of the most promising new materials for photovoltaics, reaching efficiencies up to 20.1% over a period of only five years. However, for the planar heterojunction device architecture - likely the most commercially scalable design for perovskite solar cells – controlling film morphology remains a significant challenge, inhibiting both device performance and the investigation of fundamental material properties. In this study, surface silane-functionalization of planar substrates was employed together with the addition of hydrobromic acid to the perovskite precursor solution to improve perovskite film uniformity with controlled crystal size and reduced surface roughness.


[1] M. A. Green, K. Emery, Y. Hishikawa, W. Warta, and E. D. Dunlop, “Solar cell efficiency tables (version 44),” Progress in Photovoltaics: Research and Applications, vol. 22, no. 7, pp. 701–710, 2014.

[2] L. Zuo, Z. Gu, T. Ye, W. Fu, G. Wu, H. Li, and H. Chen, “Enhanced photovoltaic performance of ch3nh3pbi3 perovskite solar cells through interfacial engineering using self-assembling monolayer,” Journal of the American Chemical Society, vol. 137, no. 7, pp. 2674–2679, 2015.

[3] T. Shi, W.-J. Yin, F. Hong, K. Zhu, and Y. Yan, “Unipolar self-doping behavior in perovskite ch3nh3pbbr3,” Applied Physics Letters, vol. 106, no. 10, 2015.

[4] S. Brittman, G. W. P. Adhyaksa, and E. C. Garnett, “The expanding world of hybrid perovskites: materials properties and emerging applications,” MRS Communications, vol. 5, no. 1, pp. 7–26, 2015.

[5] C. C. Stoumpos, C. D. Malliakas, and M. G. Kanatzidis, “Semiconducting tin and lead iodide perovskites with organic cations: Phase transitions, high mobilities, and near-infrared photoluminescent properties,” Inorganic Chemistry, vol. 52, no. 15, pp. 9019–9038, 2013.

[6] M. Saba, M. Cadelano, D. Marongiu, F. Chen, V. Sarritzu, N. Sestu, C. Fi- gus, M. Aresti, R. Piras, A. Geddo Lehmann, C. Cannas, A. Musinu, F. Quochi, A. Mura, and G. Bongiovanni, “Correlated electron–hole plasma in organometal perovskites,” Nature Communications, vol. 5, 2014.

[7] N. K. Noel, A. Abate, S. D. Stranks, E. S. Parrott, V. M. Burlakov, A. Goriely, and H. J. Snaith, “Enhanced photoluminescence and solar cell performance via lewis base passivation of organic–inorganic lead halide perovskites,” ACS Nano, vol. 8, no. 10, pp. 9815–9821, 2014.

[8] T. Salim, S. Sun, Y. Abe, A. Krishna, A. C. Grimsdale, and Y. M. Lam, “Perovskite-based solar cells: impact of morphology and device architecture on device performance,” J. Mater. Chem. A, vol. 3, pp. 8943–8969, 2015.

[9] J. H. Heo, D. H. Song, and S. H. Im, “Planar ch3nh3pbbr3 hybrid solar cells with 10.4% power conversion efficiency, fabricated by controlled crystallization in the spin-coating process,” Advanced Materials, vol. 26, no. 48, pp. 8179– 8183, 2014.

[10] Z. Xiao, Q. Dong, C. Bi, Y. Shao, Y. Yuan, and J. Huang, “Solvent an- nealing of perovskite-induced crystal growth for photovoltaic-device eciency enhancement,” Advanced Materials, vol. 26, no. 37, pp. 6503–6509, 2014.

[11] F. Wang, H. Yu, H. Xu, and N. Zhao, “Hpbi3: A new precursor compound for highly ecient solution-processed perovskite solar cells,” Advanced Functional Materials, vol. 25, no. 7, pp. 1120–1126, 2015.

Author Biography

Haralds Abolins, Amsterdam University College
FOM Institute AMOLF
How to Cite
ABOLINS, Haralds. Controlling the Morphology of CH3NH3PbBr3 Perovskite Films on Planar Substrates. Student Undergraduate Research E-journal!, [S.l.], v. 1, nov. 2015. ISSN 2468-0443. Available at: <>. Date accessed: 23 mar. 2019.