Tributyl(methyl)phosphonium lead iodide: band gap (fundamental)

Band gap (fundamental)
Origin: experimental
Band gap (fundamental)

Crystal system: unknown

Band gap (fundamental), eV
H. Jiao, Z. Ni, Z. Shi, C. Fei, Y. Liu, X. Dai, and J. Huang, Perovskite grain wrapping by converting interfaces and grain boundaries into robust and water-insoluble low-dimensional perovskites, Science 8, eabq4524‑eabq4525 (2022). doi: 10.1126/sciadv.abq4524.
System description
Dimensionality: 1D
Sample type: film
Related data
This data set is directly linked to other data sets: See all related data

Starting materials: TPI, PbI2, dimethylformamide (DMF)

Product: Tributyl(methyl)phosphonium lead iodide film

Description: PbI2 (0.5 mol) and TPI (0.5 mol) were both dissolved in DMF (1 mL). The resulting solution (30 μL) was dropped onto a glass surface. Spin-coating was performed at 5000 rpm for 30 seconds, then the film was annealed at 100°C for 5 minutes.

Method: UV-Vis Spectroscopy

Description: The absorbance spectrum of TPPbI3 films were recorded using UV-Vis spectroscopy, no information about equipment given. The band gap was determined from the absorption spectrum.

H. Jiao, Z. Ni, Z. Shi, C. Fei, Y. Liu, X. Dai, and J. Huang, Perovskite grain wrapping by converting interfaces and grain boundaries into robust and water-insoluble low-dimensional perovskites, Science 8, eabq4524‑eabq4525 (2022). doi: 10.1126/sciadv.abq4524.

Extraction method: manual
Entry added on: Jan. 11, 2023, 4:18 p.m.
Entry added by: Harrison York Duke University
Last updated on: Jan. 17, 2023, 10:48 a.m.
Last updated by: Harrison York Duke University

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