Ultrastability and color-tunability of CsPb(Br/I)<sub>3</sub> nanocrystals in P–Si–Zn glass for white LEDs

Jiang, Junguang; Shao, Guangzhan; Zhang, Zelong; Ding, Ling; Zhang, Huiling; Liu, Jianming; Chen, Zhaoping; Xiang, Weidong

doi:10.1039/c8cc06442c

Cited by 53 publications

(34 citation statements)

References 29 publications

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“…After the temperature cooling down from 195°C to 25°C, PL intensity was retained approximately 82.5% of the initial intensity, indicating that the thermal stability of CsPb 0.7 Ti 0.3 Br 3 QDs was enhanced owing to the protective effect of the glass host. Compared with the previous report, the thermal stability of CsPb 0.7 Ti 0.3 Br 3 QDs in glass was considerable . In addition to being affected by heat, QDs are also susceptible to moisture, so water stability is especially important.…”

Section: Resultsmentioning

confidence: 64%

“…Compared with the previous report, the thermal stability of CsPb 0.7 Ti 0.3 Br 3 QDs in glass was considerable. 38 In addition to being affected by heat, QDs are also susceptible to moisture, so water stability is especially important. The CsPb 0.7 Ti 0.3 Br 3 QDs glass was moistened directly in water to appraise the water-resisting property.…”

Section: Resultsmentioning

confidence: 99%

“…The luminous efficiency of W‐LED matched by CsPb 0.7 Ti 0.3 Br 3 QDs glass (45.87 lm/W) was significantly improved under the same current and its CRI was substantially unchanged compared with the W‐LED matched by CsPbBr 3 QDs glass (17.69 lm/W). The results show that the prominent performances of W‐LED device matched by CsPb 0.7 Ti 0.3 Br 3 QDs glass, indicating that the CsPb 1− x Ti x Br 3 QDs glasses can be applied for future display …”

Section: Applications In the W‐ledsmentioning

confidence: 88%

“…The results show that the prominent performances of W-LED device matched by CsPb 0.7 Ti 0.3 Br 3 QDs glass, indicating that the CsPb 1−x Ti x Br 3 QDs glasses can be applied for future display. [38][39][40]…”

Section: Ledsmentioning

confidence: 99%

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Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED

et al. 2019

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In this report, a mixed‐metal cation‐based halide perovskite (HP) CsPb1−xTixBr3 quantum dots (QDs) were first embedded in the B–Si–Zn glasses using a traditional approach of melt quenching and heat treating. A battery of test results such as photoluminescence, X‐ray diffraction, and time‐resolved attenuation prove that Ti ions do not destroy the properties of CsPbBr3, and they are successfully doped into CsPbBr3. At the same time, the doping of Ti ions also reduces the toxicity of lead. By altering the ratio of Pb/Ti, we determined the optimum ratio of CsPb0.7Ti0.3Br3 QDs through experimental data. Due to the excellent optical properties and stability of CsPb0.7Ti0.3Br3 QDs glass, it was designed to construct the white‐light emitting diode device with tunable color coordinate, color rendering index, correlated color temperature, and a high luminous efficiency compared with CsPbBr3 QDs glass, which may be a promising candidate for the field of lighting and displays.

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Section: Resultsmentioning

confidence: 64%

Section: Resultsmentioning

confidence: 99%

Section: Applications In the W‐ledsmentioning

confidence: 88%

Section: Ledsmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED

et al. 2019

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“…Temperatures, time, molar concentration of the compounds, and other conditions may be accordingly tuned to achieve desired properties [143]. Different glass systems have been used with PNCs such as zinc borosilicate (ZnO-SiO 2 -B 2 O 3 ) [136,144,145,146,147], phosphate (P 2 O 5 -SiO 2 -ZnO) [148], (P 2 O 2 -SiO 2 -ZnO) [149], GeO 2 −B 2 O 3 −ZnO−Na 2 O [150], tellurite based glasses (TeO 2 -Al 2 O 3 -H 3 BO 3 -ZnO-Na 2 CO 3 ) [151].…”

Section: Environmental Stability (Heat Moisture Oxygen Uv Lightmentioning

confidence: 99%

Advances in the Stability of Halide Perovskite Nanocrystals

et al. 2019

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Colloidal halide perovskite nanocrystals are promising candidates for next-generation optoelectronics because of their facile synthesis and their outstanding and size-tunable properties. However, these materials suffer from rapid degradation, similarly to their bulk perovskite counterparts. Here, we survey the most recent strategies to boost perovskite nanocrystals stability, with a special focus on the intrinsic chemical- and compositional-factors at synthetic and post-synthetic stage. Finally, we review the most promising approaches to address the environmental extrinsic stability of perovskite nanocrystals (PNCs). Our final goal is to outline the most promising research directions to enhance PNCs’ lifetime, bringing them a step closer to their commercialization.

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Metal Halide Perovskites Functionalized by Patterning Technologies

Huang

Xiao

Dong

2020

Adv Materials Technologies

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Date back to the first introduction of organic-inorganic hybrid perovskites into solar cells in 2009, [5] the power conversion efficiencies (PCEs) have been greatly boosted from 3.8% to 25.2% (certified PCEs) during the past decade. [6] With the merits of excellent photoluminescence (PL) quantum yield, perovskite-based light-emitting diodes (LEDs) have achieved external quantum efficiency (EQE) exceeding 20% via defect passivation, structural modification, and surface engineering. [7-9] In addition to the prosperity in photovoltaic and light-emitting devices, tremendous efforts are carried on the MHPs pursuing ultra-low threshold laser, [10,11] and ultra-sensitive photo-and X-ray detectors. [12-14] Solution processing method is commonly used for fabricating perovskite thin films. This cost-effective method allows large-scale production of smooth and uniform perovskite thin films served as the active layers of solar cells. [15] However, it is difficult to grow specific nano/microcrystals with desired dimensions and positions to meet the requirement of integrated electronic and optoelectronic devices with compactness. Patterning technology is widely used in optoelectronic fields to improve device performance. Performing various patterning technologies on materials not only obtain aesthetic value but also generate specific functions through constructing ordered and well-designed structures. [16-19] Specific structures and periodic patterns endow materials with unique light-matter interaction which has great impacts on photovoltaic and optoelectronic devices. [20] Moreover, patterning technologies can construct highresolution patterns down to nanoscale resolution, which meets the requirement for displaying and anti-counterfeiting applications. Therefore, performing versatile patterning technologies on MHPs would not only improve their electronic and optical properties but also opens a new pathway for integrated electronic and optoelectronic systems with unique and novel functions. Here, an overview of the recent advances of patterning technology in the field of MHPs is presented (Figure 1). The patterning technologies were divided into two parts based on whether patterned templates are required. With the merits of patterning technologies, the patterned MHPs exhibited novel functions and enhanced performance in optical and optoelectronic applications, such as solar cells, photodetectors, laser, anti-counterfeiting, and full-color displays. Therefore, the relationship between the patterned structures and the MHPs device performance as well as the corresponding mechanisms are discussed in detail. Finally, a summary and some perspectives on the existing challenges of patterned MHPs are put forward. Metal halide perovskites (MHPs), as emerging stars, are greatly attracted due to their superior optical and optoelectrical properties. The design and construction of patterned materials have been considered as a powerful tool to improve the performance of optical and optoelectronic devices. Therefore, the marriage of MHPs and ...

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Ultrastability and color-tunability of CsPb(Br/I)₃ nanocrystals in P–Si–Zn glass for white LEDs

Abstract: A series of CsPbBrxI3-x NC glasses, showing tunable emission (523-693 nm) controlled by different ratios of Br- and I-, were successfully prepared. The CsPbBrxI3-x NC glasses exhibited excellent optical properties and outstanding stability towards ambient conditions, water and heat.

Cited by 53 publications

References 29 publications

Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED

Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED

Advances in the Stability of Halide Perovskite Nanocrystals

Metal Halide Perovskites Functionalized by Patterning Technologies

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Ultrastability and color-tunability of CsPb(Br/I)3 nanocrystals in P–Si–Zn glass for white LEDs

Abstract: A series of CsPbBrxI3-x NC glasses, showing tunable emission (523-693 nm) controlled by different ratios of Br- and I-, were successfully prepared. The CsPbBrxI3-x NC glasses exhibited excellent optical properties and outstanding stability towards ambient conditions, water and heat.

Cited by 53 publications

References 29 publications

Synthesis and optical properties of novel mixed‐metal cation CsPb1−xTixBr3‐based perovskite glasses for W‐LED

Synthesis and optical properties of novel mixed‐metal cation CsPb1−xTixBr3‐based perovskite glasses for W‐LED

Advances in the Stability of Halide Perovskite Nanocrystals

Metal Halide Perovskites Functionalized by Patterning Technologies

Contact Info

Product

Resources

About

Ultrastability and color-tunability of CsPb(Br/I)₃ nanocrystals in P–Si–Zn glass for white LEDs

Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED

Synthesis and optical properties of novel mixed‐metal cation CsPb₁₋_xTi_xBr₃‐based perovskite glasses for W‐LED