Skip to main content
×
×
Home

Degradation of Co-Evaporated Perovskite Thin Films

  • Congcong Wang (a1), Youzhen Li (a2), Xuemei Xu (a2), Benjamin Ecker (a1), Chenggong Wang (a1) and Yongli Gao (a1) (a2)...
Abstract

Methylammonium lead halide perovskites have been developed as highly promising materials to fabricate efficient solar cells in the past few years. We have investigated degradation of co-evaporated CH3NH3PbI3 films in ambient air, oxygen and water respectively using x-ray photoelectron spectroscopy (XPS), small angle x-ray diffraction (XRD), atomic force microscopy (AFM), and scanning electron microscopy (SEM). The CH3NH3PbI3 film has an excellent atomic ratio and crystallinity. XPS results indicate that the film is not sensitive to oxygen and dry air, while ambient and water exposures achieve similar effects. XRD further indicates a structural conversion to PbI2 and a drastic morphology change from smooth to rough is revealed by AFM and SEM. The experiment indicated that H2O plays a dominated role in the degradation of CH3NH3PbI3 films. The degradation can be characterized by almost complete removal of N, substantial reduction of I, residual of PbI2, C, O, and I compounds on the surface.

Copyright
Corresponding author
*(Email: cwang71@ur.rochester.edu)
References
Hide All
1.Baikie, T., Fang, Y. N., Kadro, J. M., Schreyer, M., Wei, F. X., Mhaisalkar, S. G., Grätzel, M., White, T. J., J. Mater. Chem. A 1, 56285641 (2013).
2.Xiao, Z., Bi, C., Shao, Y., Dong, Q., Wang, Q., Yuan, Y., Wang, C. G., Gao, Y., Huang, J., Energy Environ. Sci. 7, 2619 (2014).
3.Wang, C. G., Liu, X., Wang, C. C., Xiao, Z., Bi, C., Shao, Y., Huang, J., Gao, Y., J. Vac. Sci. Technol. B 33, 032401 (2015).
4.Wehrenfennig, C., Eperon, G. E., Johnston, M. B., Snaith, H. J. and Herz, L. M., Adv. Mater. 26, 1584 (2014).
5.Xing, G., Mathews, N., Lim, S. S., Yantara, N., Liu, X., Sabba, D., Grätzel, M., Mhaisalkar, S., Sum, T. C., Nat. Mater. 13, 476 (2014).
6.Bi, C., Shao, Y., Yuan, Y., Xiao, Z., Wang, C. G., Gao, Y., Huang, J., J. Mater. Chem. A, 2, 18508 (2014).
7.Liu, X., Wang, C. G., Lyu, L., Wang, C. C., Xiao, Z., Bi, C., Huang, J., Gao, Y., Phys. Chem. Chem. Phys. 17, 896 (2015).
8.Kim, H. S., Lee, C. R., Im, J. H., Lee, K. B., Moehl, T., Marchioro, A., Moon, S. J., Humphry-Baker, R., Yum, J. H., Moser, J. E., Gratzel, M. and Park, N. G., Sci. Rep. 2, 591 (2012).
9.Liu, M., Johnston, M. B., and Snaith, H. J., Nature 501, 395398 (2013).
10.Zhou, H., Chen, Qi, Li, G., Luo, S., Song, T. B., Duan, H. S., Hong, Z., You, J. B., Liu, Y., and Yang, Y., Science 345, 542546 (2014).
11.Yang, W. S., Noh, J. H., Jeon, N. J., Kim, Y. C., Ryu, S., Seo, J.; Il Seok, S., Science, 6, 12341237 (2015).
12.Leijtens, T., Eperon, G. E., Pathak, S., Abate, A., Lee, M. M., Snaith, H. J., Nat. Commun. 4, 2885 (2013).
13.Burschka, J., Pellet, N., Moon, S. J., Humphry-Baker, R., Gao, P., Nazeeruddin, M. K., Grätzel, M., Nature 499, 316319 (2013).
14.You, J. B., Yang, Y.(Michael), Hong, Z., Song, Tze-Bin, Meng, L., Liu, Y. S., Jiang, C. Y., Zhou, H. P., Chang, W. H., Li, G., and Yang, Y., Appl. Phys. Lett. 105, 183902 (2014).
15.Niu, G., Li, W., Meng, F., Wang, L., Dong, H. and Qiu, Y., J. Mater.Chem. A 2, 705 (2014).
16.Christians, J. A., Herrera, P. A. M., Kamat, P. V., J. Am. Chem. Soc. 137, 15301538 (2015).
17.Yang, J., Siempelkamp, B. D., Liu, D., and Kelly, T. L., ACS Nano 9, 19551963 (2015).
18.Niu, G., Guo, X., Wang, L., J. Mater. Chem. A, 3, 89708980 (2015).
19.Mosconi, E., Azpiroz, J. M., De Angelis, F., Chem. Mater. 27, 48854892 (2015).
20.Wang, Q., Shao, Y., Xie, H., Lyu, L., Liu, X., Gao, Y. and Huang, J., Appl. Phys. Lett. 105, 163508 (2014).
21.Liu, X., Wang, C. G., Wang, C. C., Irfan, I. and Gao, Y., Org. Elec. 17, 325 (2015).
22.Wang, C. G., Wang, C. C., Liu, X., Kauppi, J., Shao, Y., Xiao, Z., Bi, C., Huang, J. and Gao, Y., Appl. Phys. Lett. 106, 111603 (2015).
23.Li, Y., Xu, X., Wang, C. G., Wang, C. C., Xie, F., Yang, J., Gao, Y., J. Phys. Chem. C. 119, 2399624002 (2015).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Advances
  • ISSN: -
  • EISSN: 2059-8521
  • URL: /core/journals/mrs-advances
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 13 *
Loading metrics...

Abstract views

Total abstract views: 262 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 21st August 2018. This data will be updated every 24 hours.