Fluorescence properties of potassium ions doped CsPbCl&lt;sub&gt;3&lt;/sub&gt;: Mn perovskite quantum dots

CHANG, Peng; Zhai, Yue; WU, Na; Zhang, Hong; ZHU, Qiang-qiang; Wang, Le

doi:10.37188/cjlcd.2021-0161

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Xing et al discovered that introducing Ni dopants into Mn-doped CsPbCl 3 perovskites results in an increase in the solubility of the Mn dopant from 0.11% to 15.25%. This increase ultimately improves the PLQY of the Mn-generated luminescence in CsPbCl 3 , which is an astonishing phenomenon [ 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

Mono- and Co-Doped Mn-Doped CsPbCl3 Perovskites with Enhanced Doping Efficiency and Photoluminescent Performance

et al. 2023

View full text Add to dashboard Cite

To investigate the effect of Mn and other metal dopants on the photoelectronic performance of CsPbCl3 perovskites, we conducted a series of theoretical analyses. Our findings showed that after Mn mono-doping, the CsPbCl3 lattice contracted and the bonding strength increased, resulting in a more compact structure of the metal octahedral cage. The relaxation of the metal octahedral cage, along with the Jahn–Teller effect, results in a decrease in lattice strain between the octahedra and a reduction in the energy of the entire lattice due to the deformation of the metal octahedron. These three factors work together to reduce intrinsic defects and enhance the stability and electronic properties of CsPbCl3 perovskites. The solubility of the Mn dopant is significantly increased when co-doped with Ni, Fe, and Co dopants, as it compensates for the lattice strain induced by Mn. Doping CsPbCl3 perovskites reduces the band gap due to the decreased contributions of 3d orbitals from the dopants. Our analyses have revealed that strengthening the CsPbCl3 lattice and reducing intrinsic defects can result in improved stability and PL properties. Moreover, increasing Mn solubility and decreasing the bandgap can enhance the PLQY of orange luminescence in CsPbCl3 perovskites. These findings offer valuable insights for the development of effective strategies to enhance the photoelectronic properties of these materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Mono- and Co-Doped Mn-Doped CsPbCl3 Perovskites with Enhanced Doping Efficiency and Photoluminescent Performance

et al. 2023

View full text Add to dashboard Cite

show abstract

In Situ Growth Method for Large-Area Flexible Perovskite Nanocrystal Films

Zhou,

Xu,

Zhao

et al. 2024

Materials

View full text Add to dashboard Cite

Metal halide perovskites have shown unique advantages compared with traditional optoelectronic materials. Currently, perovskite films are commonly produced by either multi-step spin coating or vapor deposition techniques. However, both methods face challenges regarding large-scale production. Herein, we propose a straightforward in situ growth method for the fabrication of CsPbBr3 nanocrystal films. The films cover an area over 5.5 cm × 5.5 cm, with precise thickness control of a few microns and decent uniformity. Moreover, we demonstrate that the incorporation of magnesium ions into the perovskite enhances crystallization and effectively passivates surface defects, thereby further enhancing luminous efficiency. By integrating this approach with a silicon photodiode detector, we observe an increase in responsivity from 1.68 × 10−2 A/W to 3.72 × 10−2 A/W at a 365 nm ultraviolet wavelength.

show abstract

Fluorescence properties of potassium ions doped CsPbCl<sub>3</sub>: Mn perovskite quantum dots

Cited by 2 publications

References 0 publications

Mono- and Co-Doped Mn-Doped CsPbCl3 Perovskites with Enhanced Doping Efficiency and Photoluminescent Performance

Mono- and Co-Doped Mn-Doped CsPbCl3 Perovskites with Enhanced Doping Efficiency and Photoluminescent Performance

In Situ Growth Method for Large-Area Flexible Perovskite Nanocrystal Films

Contact Info

Product

Resources

About