Starting materials: CsI, PbI2, dimethyl sulfoxide

Product: CsPbI3 film

Description: Equimolar amounts of CsI and PbI2 were dissolved in dimethyl sulfoxide at 0.6M, in a nitrogen-filled glovebox. Films were spin-coated at 2000rpm and annealed at 100 degrees C for 5 minutes in the glovebox.

Method: Optical absorption

Description: Transmittance and reflectance spectra were collected with a Varian Cary 300 UV-Vis spectrophotometer with an internally coupled integrating sphere.

G. Eperon, S. Stranks, C. Menelaou, M. Johnston, L. Herz, and H. Snaith, Formamidinium lead trihalide: a broadly tunable perovskite for efficient planar heterojunction solar cells, Energy & Environmental Science 7, 982‑988 (2014). doi: 10.1039/c3ee43822h.

Entry added on: April 17, 2022, 6:34 p.m.
Entry added by: Rayan C Duke University
Last updated on: April 17, 2022, 6:34 p.m.
Last updated by: Rayan C Duke University

Starting materials: CsI, PbI2, DMAI

Product: thin film of CsIPbI3:xDMAI

Description: CsI, PbI2, xDMAI (Dimethylammonium Iodide) were dissolved at a 1:1:x molar ratio (with x = 0.5, 0.7, 1.0 and 1.5) in DMF to prepare the CsPbI3:xDMAI-precursor. The active layer was spin-coated onto a 70°C warm c-TiO2/FTO substrate at 3000 rpm for 30s. Annealing was done at 150°C for 2 minutes for x = 0.5 and for 10 minutes for x = 0.7, as well as at 210°C for 5 minutes for x = 1.0 and 1.5. Experiments were done in a dry box with 5-10% RH.

Method: UV-Vis spectroscopy

Description: None stated

Y. Wang, X. Liu, T. Zhang, X. Wang, M. Kan, J. Shi, and Y. Zhao, The Role of Dimethylammonium Iodide in CsPbI3 Perovskite Fabrication: Additive or Dopant?, Angewandte Chemie International Edition 58, 16691‑16696 (2019). doi: https://doi.org/10.1002/anie.201910800.

Extraction method: manually entered
Entry added on: Dec. 8, 2022, 5:08 a.m.
Entry added by: Elisa Wade Albert-Ludwigs-Universität Freiburg
Last updated on: Dec. 8, 2022, 5:08 a.m.
Last updated by: Elisa Wade Albert-Ludwigs-Universität Freiburg