Formation and Encapsulation of All-Inorganic Lead Halide Perovskites at Room Temperature in Metal-Organic Frameworks
- Authors
- Cha, J.-H.; Noh, K.; Yin, W.; Lee, Y.; Park, Y.; Ahn, T.K.; Mayoral, A.; Kim, J.; Jung, D.-Y.; Terasaki, O.
- Issue Date
- May-2019
- Publisher
- American Chemical Society
- Citation
- Journal of Physical Chemistry Letters, v.10, no.9, pp.2270 - 2277
- Journal Title
- Journal of Physical Chemistry Letters
- Volume
- 10
- Number
- 9
- Start Page
- 2270
- End Page
- 2277
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/34741
- DOI
- 10.1021/acs.jpclett.9b00510
- ISSN
- 1948-7185
- Abstract
- Improving the stability and tuning the optical properties of semiconducting perovskites are vital for their applications in advanced optoelectronic devices. We present a facile synthetic method for hybrid composites of perovskites and metal-organic frameworks (MOFs). A simple two-step solution-based method without organic surfactants was employed to make all-inorganic lead-halide perovskites (CsPbX 3 ; X = Cl, Br, I, or mixed halide compositions) form directly in the pores of MIL-101 MOF. That is, a polar organic solution of lead halide (PbX 2 ) was impregnated into the MOF pores to give PbX 2 @MIL-101, which was then subjected to a perovskite-formation reaction with cesium halide (CsX) dissolved in methanol. The compositions of the halogen anions in the perovskites can be modulated with various halide precursors, leading to CsPbX 3 @MIL-101 composites with X 3 = Cl 3 , Cl 2 Br, Br 2 Cl, Br 3 , Br 2 I, I 2 Br, and I 3 that exhibit gradual variation of band gap energies and tuned emission wavelengths from 417 to 698 nm. © 2019 American Chemical Society.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.