Organic-inorganic hybrid perovskite material for temperature detection

A perovskite material and inorganic technology, applied in the direction of physical/chemical change thermometers, thermometers, luminescent materials, etc., to achieve high resolution and sensitive response

Active Publication Date: 2014-09-03
ZHIJING NANOTECH CO LTD
View PDF4 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chemical temperature probe materials mainly include organic molecules with fluorescent chromophores, rare earth materials, and some fluorescent nanocrystals. Qualitative and quantitative detection of temperature in terms of fluorescence lifetime and other aspects. Materials with better resolution and sensitivity can be used for micro-region thermal imaging. At present, there is no introduction of organic-inorganic hybrid perovskite materials used for temperature detection.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic-inorganic hybrid perovskite material for temperature detection
  • Organic-inorganic hybrid perovskite material for temperature detection
  • Organic-inorganic hybrid perovskite material for temperature detection

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation process of the organic-inorganic hybrid perovskite material is illustrated by taking the reprecipitation method as an example, including the following steps:

[0031] (1) Dissolve the organic amine in ethanol (purity ≥99.7%), prepare a solution with a volume ratio of 50%, stir for 10 minutes until uniform, add hydrohalic acid to the above solution while stirring in an ice-water bath environment, The molar ratio of the addition is: organic amine: hydrohalic acid = 1: (1 ~ 3), to ensure that the organic amine can react completely, stir for 2 hours in an ice-water bath environment to obtain a clear solution, and use a rotary evaporator at 60°C,- Evaporate under the pressure of 0.1MPa and remove the solvent to obtain the crystalline powder of organic ammonium halide. Wash the crystalline powder of organic ammonium halide with ether three times, filter, and dry in a vacuum drying oven at 35°C and -0.1MPa for 12 hours to obtain Organic ammonium halide powder, whe...

Embodiment 1

[0046] Taking the spin coating method to prepare organic-inorganic hybrid perovskite materials as an example, the organic-inorganic hybrid perovskite (C 4 H 9 NH 2 ) 2 SnI 4 For temperature detection, the steps are as follows:

[0047] Step 1. Preparation of n-butylammonium iodide salt

[0048] Dissolve n-butylamine (purity 99.5%) in 15ml ethanol (purity ≥99.7%) to prepare a solution with a volume ratio of 50%. Stir for 10 minutes until uniform. In an ice-water bath environment, press n-butylamine while stirring. The molar ratio of hydroiodic acid and hydroiodic acid (purity: 57%) is 1:1.3. Add hydroiodic acid dropwise and stir for 2 hours in an ice-water bath environment to obtain a clear solution. Use a rotary evaporator to evaporate and remove the solvent at 60°C and -0.1MPa pressure. , To obtain the crystalline powder of n-butylammonium iodide salt, wash the crystalline powder of n-butylammonium iodide salt with ether (purity 99.5%) three times, filter, and dry in a vacuum dryi...

Embodiment 2

[0056] Taking the preparation of organic-inorganic hybrid perovskite material by reprecipitation method as an example, the organic-inorganic hybrid perovskite (C 12 H 25 NH 2 ) 2 PbI 4 For temperature detection, the steps are as follows:

[0057] Step 1. Preparation of dodecylammonium iodide

[0058] Dissolve dodecylamine (purity 99.5%) in 15ml ethanol (purity ≥99.7%) to prepare a solution with a volume ratio of 50%. Stir for 10 minutes until uniform. In an ice-water bath environment, press dodecylamine while stirring The molar ratio of hydroiodic acid and hydroiodic acid (purity: 57%) is 1:1.3. Add hydroiodic acid dropwise and stir for 2 hours in an ice-water bath environment to obtain a clear solution. Use a rotary evaporator to evaporate and remove the solvent at 60°C and -0.1MPa pressure. , The crystalline powder of dodecaammonium iodide salt is obtained, and the crystalline powder of dodecaammonium iodide salt is washed three times with ether (purity: 99.5%), filtered, and dri...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an organic-inorganic hybrid perovskite material for temperature detection, belonging to the technical field of material application. A structural formula of the organic-inorganic hybrid perovskite material is A2BX4, wherein A represents a linear-chain alkyl ammonium halide or an ammonium halide with a fluorophore, B represents one selected from Ge, Sn, Pb and Cu, and X represents one selected from chlorine, bromine and iodine. The organic-inorganic hybrid perovskite material in the forms of single crystalline, film, fluid suspension and solid powders can be all used for temperature detection, response is sensitive, and the resolution is high. The organic-inorganic hybrid perovskite material can be used as a fluorescent probe for quantitative temperature test, or can be used as a simple probe for qualitative temperature test, color change of the probe can be observed under a fluorescent lamp needless of excitation via ultraviolet light, and temperature change rather than accurate temperature needs to be displayed.

Description

Technical field [0001] The invention relates to a new application of using an organic-inorganic hybrid perovskite material for temperature detection, and belongs to the technical field of material application. Background technique [0002] As one of the seven physical quantities, temperature is of great importance in daily life, scientific research, military and biological fields. The temperature probes that currently occupy nearly 75-80% of the probe market share are mainly mercury thermometers and thermocouples. The detection range of a mercury thermometer is not as large as that of a thermocouple. It is also inconvenient to transport and has environmental hazards caused by metal mercury leakage. In comparison, thermocouples are non-toxic, easy to prepare, and have a wider detection range, but they need to be combined with a complete set of The electronic reading device is connected, and it is convenient to use without a thermometer, and because the thermocouple needs to be in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01K11/32C09K11/66C09K11/06
Inventor 钟海政牛玉玮柏泽龙邹炳锁
Owner ZHIJING NANOTECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap