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Mn-CsPbCl3 nano-rod preparation and product thereof, and applications of Mn-CsPbCl3 nano-rods

A nanorod, oleic acid technology, applied in nanotechnology, nano-optics, nanotechnology and other directions, can solve the problems of large Stokes shift, and achieve the effect of simple operation, wide application prospect and excellent optical performance.

Active Publication Date: 2017-07-14
重庆纳鼎光电科技有限公司 +1
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Problems solved by technology

[0003] A method is now provided to prepare Mn-doped CsPbCl with high fluorescence efficiency 3 Nanorods, the method is simple, the crystallinity is good, the photoluminescence efficiency is high, and the Stokes shift is large, and there is no one-dimensional Mn-doped CsPbCl 3 Related reports on nanorods

Method used

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  • Mn-CsPbCl3 nano-rod preparation and product thereof, and applications of Mn-CsPbCl3 nano-rods
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  • Mn-CsPbCl3 nano-rod preparation and product thereof, and applications of Mn-CsPbCl3 nano-rods

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Embodiment 1

[0030] Mn-CsPbCl 3 Preparation method of perovskite nanorods

[0031] 1. Add 100mg of cesium carbonate into a 100mL flask, inject 4mL of octadecene and 0.6mL of oleic acid, and heat to 120°C under a nitrogen atmosphere to form a cesium oleate solution.

[0032] 2. Add 61.5mg of PbCl 2 and 61.5 mg MnCl 2 Put 4H2O into a 50mL flask, add 5mL octadecene, 0.5mL oleic acid and 0.8mL oleylamine, and stir for 10 minutes under nitrogen atmosphere. Then heat the flask to 120°C, keep it for 30 minutes, raise the temperature to 165°C, keep it for 10 minutes, then raise the temperature to 200°C, add 0.5mL oleic acid and 0.8mL oleylamine, keep it for 10 minutes, you can see the solution The edge clarifies to form a Pb / Mn precursor solution.

[0033] 3. Inject 0.4mL cesium oleate solution into the Pb / Mn precursor solution and cool in an ice bath. Finally, the obtained sample was washed, centrifuged at 8000 rpm for 5 minutes, the supernatant was removed, the precipitate was dispersed wit...

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Abstract

The present invention relates to a Mn-CsPbCl3 nano-rod preparation method, which comprises: adding cesium carbonate into the mixture of octadecene and oleic acid, and heating to obtain a cesium oleate solution; adding PbCl2 and MnCl2.4H2O to octadecene, oleic acid and oleylamine, heating to a temperature of 120 DEG C, maintaining for 30 min, raising the temperature to a temperature of 165 DEG C, maintain for 10 min, heating to a temperature of 200 DEG C, and adding oleic acid and oleylamine until the solution is clear so as to form a Pb / Mn precursor solution; and injecting the cesium oleate solution into the Pb / Mn precursor solution, cooling with a 0 DEG C ice bath, carrying out centrifugation, washing with toluene, and repeatedly performing the steps three times to obtain the Mn-CsPbCl3 nano-rods. According to the present invention, the operation of the preparation method of the technical scheme is simple, and the obtained nano-rods have characteristics of high fluorescence efficiency, good crystallinity, large Stokes displacement.

Description

technical field [0001] The invention belongs to the field of nanometer material light emitting technology, in particular to Mn-CsPbCl 3 Preparation methods of nanorods and their products and applications. Background technique [0002] Semiconductor nanocrystals have attracted the attention of many scholars due to their superior properties such as super-luminescent properties and adjustable bandgap width, while perovskite nanocrystals have potential applications in the field of optoelectronics due to their unique optical properties. Doping semiconductor quantum dots with transition metals is a commonly used method to improve the optical and electromagnetic properties of semiconductors. For example, the D.D.Sarma group doped zinc selenide with manganese to achieve effective regulation of the spectrum. Recently, Matthew Sheldon's group prepared Mn-doped perovskite quantum dots with photoluminescence efficiency. The optical and electrical properties of nanomaterials are signi...

Claims

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Application Information

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IPC IPC(8): C09K11/66B82Y20/00B82Y40/00
Inventor 唐孝生陈威威臧志刚刘洪均
Owner 重庆纳鼎光电科技有限公司
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