Wang L, Zheng W, Vitale F, Zhang X, Li X, Ji Y, Liu Z, Ghaebi O, Plass CT, Domes R, Frosch T, Soavi G, Wendler E, Zhang Y, Ronning C (2022)
Publication Type: Journal article
Publication year: 2022
Book Volume: 32
Article Number: 2111338
Journal Issue: 22
Alloyed lead-free double perovskites display intense photoluminescence, are environmentally friendly, and their devices show long-term operation. Thanks to these properties, which make them excellent warm white-emitting materials, they have recently received great attention in lighting applications. An important factor to tune the optical properties of alloyed lead-free double perovskites is the presence of self-trapped excitons. Here, it is demonstrated that in lead-free double perovskites, the strong electron–phonon coupling plays a crucial role in the generation of self-trapped excitons. The strong electron–phonon coupling is confirmed by a large Huang–Rhys factor and by the presence of multiphonon transitions. In particular, sharp emission lines superimposed on the broad photoluminescence emission band of one of these samples (Cs
APA:
Wang, L., Zheng, W., Vitale, F., Zhang, X., Li, X., Ji, Y.,... Ronning, C. (2022). Wide-Bandgap Double Perovskites with Multiple Longitudinal-Optical Phonon Scattering. Advanced Functional Materials, 32(22). https://doi.org/10.1002/adfm.202111338
MLA:
Wang, Liangling, et al. "Wide-Bandgap Double Perovskites with Multiple Longitudinal-Optical Phonon Scattering." Advanced Functional Materials 32.22 (2022).
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