An efficient route to assemble novel organometal halide perovskites and emission evolution performance

Qiao, Gongxi; Zeng, Zhi; Gao, Jinwei; Tang, Yiping; Wang, Qianming

doi:10.1016/j.jallcom.2018.08.322

Cited by 15 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure 6b, with the increase of CoCl 2 concentration, the PL peak position appears blue shift, which may be due to the different electronegativity between Pb 2+ and Co 2+ cations as well as Brand Clanions. Wang et al [52] reported the synthesis of Cu-doped CH 3 NH 3 Pb 1-x Cu x Br 3 , showing strong blue luminescence when excited at 370 nm and the emission evolved from 468 nm to 513 nm with the substitution of Cu (Figure 6c,d).…”

Section: Metal Ion Dopingmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress of Organic–Inorganic Hybrid Perovskite Quantum Dots: Preparation, Optical Regulation, and Application in Light‐Emitting Diodes

Han,

Chang,

Cheng

et al. 2023

Laser & Photonics Reviews

View full text Add to dashboard Cite

Organic–inorganic hybrid perovskite quantum dots (QIHP‐QDs) have aroused widespread interest due to their superior photoelectric performance, quantum confinement effect, excellent photoelectric property, color‐tunability, and high photoluminescence quantum yield (PLQY) especially for QD‐based light‐emitting diodes (QLEDs). It is worth noting that a diverse selection of organic cations brings more adjustable optical properties to OIHP‐QDs compared with all‐inorganic perovskite QDs; thus the research on OIHP‐QDs has become a hit subject over recent years. This review summarizes the latest progress in synthesis strategy and optical property regulation of OIHP‐QDs in conjunction with the recent developments of their application in QLEDs. In addition, the current challenges limiting the applicability of QIHP‐QDs are discussed, and the development of OIHP‐QDs in the future is proposed.

show abstract

Section: Metal Ion Dopingmentioning

confidence: 99%

“…Wang et al. [ 52 ] reported the synthesis of Cu‐doped CH 3 NH 3 Pb 1‐x Cu x Br 3 , showing strong blue luminescence when excited at 370 nm and the emission evolved from 468 nm to 513 nm with the substitution of Cu (Figure 6c,d).…”

Section: Optical Properties Regulationmentioning

confidence: 99%

Recent Progress of Organic–Inorganic Hybrid Perovskite Quantum Dots: Preparation, Optical Regulation, and Application in Light‐Emitting Diodes

Han,

Chang,

Cheng

et al. 2023

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…Perovskites were first effectively used in solid-state solar cells in 2012 ( Yamaguchi et al, 2005 ); these types of solar cells contain perovskite structured material such as hybrid organic and inorganic material as an absorber layer for photovoltaics properties ( Ramanathan et al, 2003 ; Qiao et al, 2019 ; Liu et al, 2020 ). Perovskite material is used as a photon harvesting material, whilst for charge transportation, different materials are used.…”

Section: Introductionmentioning

confidence: 99%

Aluminum Doping Effects on Interface Depletion Width of Low Temperature Processed ZnO Electron Transport Layer-Based Perovskite Solar Cells

et al. 2022

View full text Add to dashboard Cite

Rapid improvement in efficiency and stabilities of perovskite solar cells (PSCs) is an indication of its prime role for future energy demands. Various research has been carried out to improve efficiency including reducing the exciton recombination and enhancement of electron mobilities within cells by using electron transport material (ETM). In the present research, electrical, optical, and depletion width reduction properties of low temperature processed ZnO electron transport layer-based perovskite solar cells are studied. The ZnO thin films vary with the concentration of Al doping, and improvement of optical transmission percentage up to 80% for doped samples is confirmed by optical analysis. Reduction in electrical resistance for 1% Al concentration and maximum conductivity 11,697.41 (1/Ω-cm) among the prepared samples and carrier concentration 1.06×1022 cm−3 were corroborated by Hall effect measurements. Systematic impedance spectroscopy of perovskite devices with synthesized ETM is presented in the study, while the depletion width reduction is observed by Mott Schottky curves. IV measurements of the device and the interfacial charge transfer between the absorber layer of methylammonium lead iodide and ETM have also been elaborated on interface electronic characteristics.

show abstract

“…[14,15] With the doping concentration of Cu 2+ increases significantly, the tolerance factor value increases in the octahedral structure of quantum dots, indicating that this organic-inorganic hybrid perovskite possesses stabilized internal structures. Furthermore, the radiation recombination of electrons in the conduction band and the holes have overlapped with T 2 level of Cu 2+ , [16,17] and thus the color of Cu 2+ doped quantum dots can be controlled with changing the proportion of Cu 2 + and Pb 2 + . However, it is difficult for the divalent transition metal cation to be doped in the perovskite quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Study on MA(Pb,Cu)Br3 Provskite Nanocrystal with Both Controlled Color Emission and Improved Stability

Liu¹,

Ji²,

Li³

et al. 2020

ES Mater.Manuf.

View full text Add to dashboard Cite

Organic-inorganic hybrid perovskite quantum dots have always been the focus of research in recent years. However, the toxic Pb 2+ in MAPbBr 3 (MA = CH 3 NH 3 +) quantum dots and low stability restrict the application in the field of lighting display. In order to solve this problem, the MA(Pb,Cu)Br 3 perovskite quantum dots with Pb 2+ replaced by non-toxic Cu 2+ were synthesized via the auxiliary ligand precipitation. The phase evolution, controlled-color and fluorescent properties were systematically studied. The photoluminescence (PL) spectra monitored at the wavelength of 400 nm showed that the fluorescence emission intensity of quantum dots gradually decreased with the increase of the concentration of Cu 2+ , and the phenomenon of blue shift appeared. Moreover, the decay lifetime decreased when the dopant concentration of Cu 2+ gradually increased. The influence mechanism was discussed in details. In order to improve the stability, the MA(Pb, Cu)Br 3 @SiO 2 quantum dots were prepared by the hydrolysis of tetramethyl orthosilicate (TMOS). Meanwhile, the effect of temperature on the fluorescence properties of quantum dots was investigated in detail. The high stability and low toxicity of the MA(Pb, Cu)Br 3 @SiO 2 quantum dots are expected to be used in the fields of lighting display and solar cells.

show abstract

An efficient route to assemble novel organometal halide perovskites and emission evolution performance

Cited by 15 publications

References 26 publications

Recent Progress of Organic–Inorganic Hybrid Perovskite Quantum Dots: Preparation, Optical Regulation, and Application in Light‐Emitting Diodes

Recent Progress of Organic–Inorganic Hybrid Perovskite Quantum Dots: Preparation, Optical Regulation, and Application in Light‐Emitting Diodes

Aluminum Doping Effects on Interface Depletion Width of Low Temperature Processed ZnO Electron Transport Layer-Based Perovskite Solar Cells

Study on MA(Pb,Cu)Br3 Provskite Nanocrystal with Both Controlled Color Emission and Improved Stability

Contact Info

Product

Resources

About