D. B. Straus, S. Hurtado Parra, N. Iotov, J. Gebhardt, A. M. Rappe, J. E. Subotnik, J. M. Kikkawa, and C. R. Kagan , Direct Observation of Electron–Phonon Coupling and Slow Vibrational Relaxation in Organic–Inorganic Hybrid Perovskites, Journal of the American Chemical Society 42, 13798‑13801 (2016). doi: https://doi.org/10.1021/jacs.6b08175.
Bis(phenylethylammonium) lead iodide: absorption spectrum

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Origin: experimental (T = 296.0 K)
D. B. Straus, S. Hurtado Parra, N. Iotov, J. Gebhardt, A. M. Rappe, J. E. Subotnik, J. M. Kikkawa, and C. R. Kagan , Direct Observation of Electron–Phonon Coupling and Slow Vibrational Relaxation in Organic–Inorganic Hybrid Perovskites, Journal of the American Chemical Society 42, 13798‑13801 (2016). doi: https://doi.org/10.1021/jacs.6b08175.
System description
Dimensionality: D
Sample type: film

Starting materials: Phenethylammonium lead iodide (PEALI) crystals, anhydrous acetonitrile (Acros Organics), sapphire substrates (Rayotek Scientific)

Product: Phenethylammonium lead iodide films

Description: PEALI crystals are dissolved by sonication in anhydrous acetonitrile at a concentration of 15 mg/mL. The solution is filtered through a 0.2 µm PTFE syringe filter (Pall Corporation) and spun on cleaned sapphire substrates by ramping the spin rate over 2 s to 2500 rpm and spinning for 10 s. After spin-casting, the films are annealed for 10 min at 80 ˚C. The entire process is carried out in a nitrogen-filled glove box.

Comment: Synthesis of PEALI crystals and cleaning procedure of the substrates can be found in the supporting information of the original publication

Method: UV-VIS Absorption

Description: The absorption spectra measurements of PEALI thin films were obtained by using Agilent Cary 5000 spectrophotometer.

Extraction method: Engauge Digitizer
Entry added on: Aug. 3, 2020, 4:23 p.m.
Entry added by: Lily Al-Omari University of North Carolina at Chapel Hill (Undergraduate)
Last updated on: March 28, 2022, 4:12 p.m.
Last updated by: Rayan C Duke University

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