CN110156071A - A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential - Google Patents

A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential Download PDF

Info

Publication number
CN110156071A
CN110156071A CN201910343322.9A CN201910343322A CN110156071A CN 110156071 A CN110156071 A CN 110156071A CN 201910343322 A CN201910343322 A CN 201910343322A CN 110156071 A CN110156071 A CN 110156071A
Authority
CN
China
Prior art keywords
assembly
nanocluster
full
preparation
inorganic perovskite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910343322.9A
Other languages
Chinese (zh)
Inventor
董安钢
徐怡冰
杨东
韩文茜
汪碧微
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fudan University
Original Assignee
Fudan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fudan University filed Critical Fudan University
Priority to CN201910343322.9A priority Critical patent/CN110156071A/en
Publication of CN110156071A publication Critical patent/CN110156071A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00Manufacture or treatment of nanostructures
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G21/00Compounds of lead
    • C01G21/006Compounds containing, besides lead, two or more other elements, with the exception of oxygen or hydrogen
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/30Three-dimensional structures
    • C01P2002/34Three-dimensional structures perovskite-type (ABO3)
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/30Particle morphology extending in three dimensions
    • C01P2004/45Aggregated particles or particles with an intergrown morphology

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

The present invention relates to a kind of preparation methods of the full-inorganic perovskite nanocluster assembly of high-sequential, the present invention prepares presoma caesium solution using solwution method, secondly lead halide powder is dissolved in nonpolar solvent with organic acid and organic amine ligand obtains lead precursor solution, then suitable oleic acid caesium solution is injected in lead precursor solution at room temperature, stir about obtains cotton-shaped full-inorganic perovskite nanocluster assembly after one minute.The type and content for adjusting ligand, can prepare the cluster assembly of two-dimentional hexagonal closs packing and two-dimensional layered structure.The method of the present invention is simple and novel, and controllability is strong, raw material is easy to get, and cost is relatively low, can be used in photovoltaic device.Secondly cluster assembly template-policy proposed by the present invention is a kind of universal method, is adapted to the preparation of a variety of two-dimensional layer nanocrystals, gained nano crystal material is with a wide range of applications in fields such as opto-electronic device, solar energy.

Description

A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential
Technical field
The invention belongs to technical field of inorganic material, and in particular to a kind of full-inorganic perovskite nanocluster of high-sequential The preparation method of assembly.
Background technique
Nanocluster is be bonded together by physically or chemically active force, metastable microcosmic or submicroscopic atom Or molecule aggregate.Because of its small size and moldable surface, in self-assembled material, photoelectric device, biomarker, medical treatment and the sun The fields such as energy battery have become a hot topic of research.Under micro-scale, the pattern of nanocluster is to its electronic structure and optical property Have a great impact, by adjusting the microstructure of semiconductor nanoclusters, can be designed the material with particular characteristic.It is being situated between It sees under scale, nanocluster can be used as construction unit, can be prepared by conventional chemical route or other self assembly strategies The superstructure material of good symmetry and geometry, and the nano material with special construction can be further converted to.
In recent years, the material based on perovskite crystal structure causes extensive pass in photovoltaic and field of photoelectric devices Note.Especially full-inorganic perovskite CsPbX3(X=Cl, Br, I) nanocrystal shows adjustable in entire visibility region Fluorescent emission feature, even more bring research boom.Perovskite crystal refers to and calcium titanate compound (CaTiO3) there is phase The substance of allomeric structure, general molecular formula ABO3, due to perovskite CsPbX3It is photoconductivity, therefore can be used as and partly lead Body material.It is synthesized at present go out pattern include zero dimension (0D) quantum dot, one-dimensional (1D) nano wire and two-dimentional (2D) nanometer sheet, In reaction system, the structure of intermediate state has conclusive effect to the control of subsequent pattern, but currently without about calcium titanium The intermediate state research of mine nanocrystal.
Therefore it provides a kind of method is simple, what raw material was easy to get prepares a kind of full-inorganic perovskite nanoclusters of high-sequential The preparation method of cluster assembly means a great.
Summary of the invention
The purpose of the present invention is to provide a kind of method is simple, what raw material was easy to get prepares a kind of full-inorganic calcium of high-sequential The preparation method of titanium ore nanocluster assembly.
In order to achieve the above object, the technical scheme adopted by the invention is as follows:
By using organic acid and organic amine ligand auxiliary dissolution lead halide solid in nonpolar solvent, before available lead Liquid solution is driven, is then rapidly injected a certain amount of oleic acid caesium solution at room temperature, after continuing stir about one minute, is obtained stable Shine floccule, which is the full-inorganic perovskite nanocluster assembly of high-sequential.This assembly is structurally ordered, ruler It is very little regular, it can be used as the soft template of subsequent nanobelt.
Specific step is as follows:
A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential, the specific steps are as follows:
(1) using lead halide as presoma, using organic acid and organic amine as ligand, in nonpolar reaction solvent at 20 ~ 25 DEG C Middle stirring and dissolving 10-12 hours;
At (2) 20 ~ 25 DEG C, it is rapidly injected oleic acid caesium solution in step (1) products therefrom, after stirring, obtains floccule, as The full-inorganic perovskite nanocluster assembly of high-sequential;
Wherein, lead halide described in step (1) is one or more of lead fluoride, lead bromide or lead iodide;
Organic acid described in step (1) is one or more of oleic acid, octanoic acid or stearic acid;
Organic amine described in step (1) can be one or more of oleyl amine, lauryl amine, octylame or octadecylamine;
Nonpolar reaction solvent described in step (1) is one of octadecylene, n-hexane, hexamethylene or carbon tetrachloride or several Kind.
In the present invention, oleic acid caesium solution preparation step described in step (2) is as follows:
In the biexhaust pipe of standard, deoxygenation and N are removed water2Under atmosphere, by oleic acid and Cs2CO3Mixing, vacuumizes 30 at 20 ~ 25 DEG C It is warming up to 120 DEG C after min to continue to vacuumize 30min, after being cooled to 20 ~ 25 DEG C, is transferred quickly to N2It is protected in the glove box of atmosphere It deposits.
Wherein, oleic acid and Cs2CO3Molar ratio be 76:1.
In the present invention, the molar ratio of lead halide and organic amine as described in step (1) are as follows: 1:17.
In the present invention, the volume ratio of oleic acid caesium solution described in step (2) and step (1) products therefrom are as follows: 1:10.
The present invention prepares presoma caesium solution using solwution method, secondly molten in nonpolarity with organic acid and organic amine ligand Lead halide powder is dissolved in agent obtains lead precursor solution, it is then at room temperature that suitable oleic acid caesium solution injection lead presoma is molten In liquid, stir about obtains cotton-shaped full-inorganic perovskite nanocluster assembly after one minute.The type and content of ligand are adjusted, The cluster assembly of two-dimentional hexagonal closs packing and two-dimensional layered structure can be prepared.The method of the present invention is simple and novel, controllability is strong, Raw material is easy to get, and cost is relatively low, and application value is extensive, and the synthesis of full-inorganic perovskite nanocluster and its self assembly behavior Research helps to further understand the relationship between molecular precursor and nanocrystal product, while being anisotropic calcium titanium The synthesis of mine nanocrystal provides new approaches.
The beneficial effects of the present invention are:
The present invention is ligand using the organic molecule of different length carbochain, adjusts the type and content of ligand, can prepare two dimension The cluster assembly of hexagonal closs packing and two-dimensional layered structure, especially CsPbI3Nanocluster assembly has good light Characteristic is learned, is expected to be applied to photovoltaic device.The method of the present invention is simple and novel, and controllability is strong, raw material is easy to get, and cost is relatively low, application Value is extensive.
Detailed description of the invention
Fig. 1 is CsPbI prepared by the embodiment of the present invention 23The UV absorption and fluorescence spectrum of nanocluster assembly;
Fig. 2 is CsPbBr prepared by the embodiment of the present invention 13The ultra-violet absorption spectrum of nanocluster;
Fig. 3 is CsPbI prepared by the embodiment of the present invention 23The electron microscopic picture of nanocluster assembly;
Fig. 4 is CsPbBr prepared by the embodiment of the present invention 13The electron microscopic picture of nanocluster assembly;
Fig. 5 is CsPbI prepared by the embodiment of the present invention 23The X-ray diffraction spectrogram of nanocluster assembly;
Fig. 6 is CsPbBr prepared by the embodiment of the present invention 13The small angle x-ray diffraction (SAXD) phenogram of nanocluster assembly;
Fig. 7 is CsPbI prepared by the embodiment of the present invention 23The thermal gravimetric analysis curve of nanocluster assembly;
Fig. 8 is CsPbBr prepared by the embodiment of the present invention 13The thermal gravimetric analysis curve of nanocluster assembly.
Specific embodiment
Embodiment 1
(1) synthesis of presoma oleic acid caesium (CsOA): all synthesis steps are all in the Schlenk-line of standard and N2Atmosphere Lower operation.By 60 mL OA(oleic acid) and 1.22 g Cs2CO3(2.5 mmol) is mixed to join in there-necked flask, first at room temperature It vacuumizes and is warming up to 120 DEG C after 30 min and continues to vacuumize 30min, obtain light yellow clear solution.After being cooled to room temperature, Oleic acid caesium is promptly transferred to N2It is saved in the glove box of atmosphere.
(2) OA/OAm is the CsPbBr of ligand3The synthesis of nanocluster: 69 mg PbBr2(0.188 mmol), 1 mL OAm(oleyl amine), 0.5 mL OA(oleic acid) and 5 mL ODE(octadecylenes) mixing be added 20 ml vials in, in glove box The stirring and dissolving at 25 DEG C of room temperature, obtains the solution of clear, colorless after 12 h, then injects 0.5 mL oleic acid caesium rapidly, Solution colour rapidly goes to light yellow, the floccule of silver color occurs after stir about 1min, this floccule is CsPbBr3Nanometer Cluster assembly.
The optical property phenetic analysis of sample:
Fig. 2 is the CsPbBr that oleic acid oleyl amine does ligand3The ultra-violet absorption spectrum of nanocluster.The ultraviolet suction of light yellow clear solution It receives spectrum and occurs obvious blue shift, and the strong trap exciton characteristic peak that peak type is sharp at 391 nm, show to be possible to generate Minimum CsPbBr3Nanocluster, the ultraviolet spectra display dispersion of 7 nm of red shift, isolated CsPbBr3Nanocluster self assembly For aggregation, i.e. assembly.
The morphology and size phenetic analysis of sample:
Fig. 4 is CsPbBr3The electron microscopic picture of nanocluster assembly.TEM characterization display CsPbBr3Nanocluster assembly is presented The quasi- rectangle pencil aggregation of mesoscopic size.
The structural characterization of sample is analyzed:
Fig. 6 is the CsPbBr of the high-sequential of preparation3The small angle x-ray diffraction (SAXD) (SAXRD) of nanocluster assembly characterizes.It is logical It crosses and the two-dimentional Hexagonal array structure that assembly is p6mm with space group is calculated.
The Surface Characterization of sample is analyzed:
Fig. 8 is CsPbBr3The thermal gravimetric analysis curve of nanocluster assembly.As seen from the figure, black curve can be calculated and receive The content of rice cluster assembly surface ligand is about 67%.
Embodiment 2
(1) synthesis of presoma oleic acid caesium (CsOA): with embodiment 1.
(2) stearic acid/OAm(oleyl amine) it is the CsPbI of ligand3The synthesis of nanocluster: by 0.087 g PbI2、0.09 g Stearic acid, 0.35 ml oleyl amine and 10 ml anhydrous n-hexanes are stirred at room temperature dissolution in the vial of 20 ml, and 12 hours Afterwards, 0.5 ml oleic acid caesium solution is added in room temperature, continues to stop after stirring 1min, this crocus floccule is CsPbI3Nanoclusters Cluster assembly.
The optical property phenetic analysis of sample:
Fig. 1 is CsPbI3The UV absorption and fluorescence spectrum of nanocluster assembly.The obvious blue shift of absorption peak, and peak type compares Sharply, with the characteristic feature of cluster absorption spectrum, illustrate to have synthesized that size is minimum and new structural nanocluster.It is more strong Strong fluorescence emission peak shows that product has good optical property.
The morphology and size phenetic analysis of sample:
Fig. 3 is CsPbI3The electron microscopic picture of nanocluster assembly.It is shown as the aggregation of large scale, class rectangle on TEM figure, gathers Single cluster is bound together by collective, the pattern and (ZnSe)13Clusters body is closely similar.
The structural characterization of sample is analyzed:
Fig. 5 is CsPbI3The X-ray diffraction spectrogram of nanocluster assembly.Multiorder diffractive peak shows that assembly has 2-dimensional mesoscopic Layer structure.
The Surface Characterization of sample is analyzed:
Fig. 7 is CsPbI3Thermogravimetric analysis (TGA) curve of nanocluster assembly.It can estimate roughly from thermogravimetric analysis (TGA) figure Calculating the amount of ligand contained by cluster is about 68%, thus can indirect proof nanocluster there is minimum size.

Claims (4)

1. a kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential, which is characterized in that specific steps It is as follows:
(1) using lead halide as presoma, using organic acid and organic amine as ligand, at 20 ~ 25 DEG C, in nonpolar reaction solvent Middle stirring and dissolving 10-12 hours;
At (2) 20 ~ 25 DEG C, be rapidly injected oleic acid caesium solution in step (1) products therefrom, after stirring, obtain floccule to get To the full-inorganic perovskite nanocluster assembly of high-sequential;
Wherein, lead halide described in step (1) is one or more of lead fluoride, lead bromide or lead iodide;
Organic acid described in step (1) is one or more of oleic acid, octanoic acid or stearic acid;
Organic amine described in step (1) can be one or more of oleyl amine, lauryl amine, octylame or octadecylamine;
Nonpolar reaction solvent described in step (1) is one of octadecylene, n-hexane, hexamethylene or carbon tetrachloride or several Kind.
2. a kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential according to claim 1, It is characterized in that, oleic acid caesium solution preparation step described in step (2) is as follows:
In the biexhaust pipe of standard, deoxygenation and N are removed water2Under atmosphere, by oleic acid and Cs2CO3Mixing, vacuumizes 30 at 20 ~ 25 DEG C It is warming up to 120 DEG C after min to continue to vacuumize 30min, after being cooled to 20 ~ 25 DEG C, is transferred quickly to N2It is protected in the glove box of atmosphere It deposits, wherein oleic acid and Cs2CO3Molar ratio be 76:1.
3. a kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential according to claim 1, It is characterized in that, the molar ratio of lead halide as described in step (1) and organic amine are as follows: 1:17.
4. a kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential according to claim 1, It is characterized in that, the volume ratio of oleic acid caesium solution described in step (2) and step (1) products therefrom are as follows: 1:10.
CN201910343322.9A 2019-04-26 2019-04-26 A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential Pending CN110156071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910343322.9A CN110156071A (en) 2019-04-26 2019-04-26 A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910343322.9A CN110156071A (en) 2019-04-26 2019-04-26 A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential

Publications (1)

Publication Number Publication Date
CN110156071A true CN110156071A (en) 2019-08-23

Family

ID=67640099

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910343322.9A Pending CN110156071A (en) 2019-04-26 2019-04-26 A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential

Country Status (1)

Country Link
CN (1) CN110156071A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111233030A (en) * 2020-01-17 2020-06-05 南京工业大学 Perovskite CsPbBr3Preparation method of nanosheet
CN113135590A (en) * 2021-05-27 2021-07-20 南京邮电大学 Preparation method of perovskite nanorod
CN113980670A (en) * 2021-10-29 2022-01-28 中国科学院深圳先进技术研究院 Solid perovskite cluster, preparation method thereof and photoelectric device
CN114988463A (en) * 2022-05-27 2022-09-02 郑州大学 Halide perovskite patterning assembly method and application thereof
WO2023070866A1 (en) * 2021-10-29 2023-05-04 中国科学院深圳先进技术研究院 Perovskite cluster solution and preparation method therefor, and optoelectronic device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105523581A (en) * 2016-02-25 2016-04-27 吉林大学 Single-size CsPbX3 perovskite nanocrystalline preparation method
CN105883909A (en) * 2016-01-22 2016-08-24 重庆大学 Method for preparing CsPbBrxI3-x nanorod
CN107311222A (en) * 2017-07-11 2017-11-03 重庆大学 CsPb2Br5The preparation method of nanometer sheet
CN107522225A (en) * 2017-09-18 2017-12-29 河北工业大学 A kind of synthetic method of inorganic perovskite nanometer sheet
CN108483487A (en) * 2018-04-26 2018-09-04 吉林大学 A kind of Cs of size, morphology controllable4PbBr6The nanocrystalline preparation method of perovskite

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105883909A (en) * 2016-01-22 2016-08-24 重庆大学 Method for preparing CsPbBrxI3-x nanorod
CN105523581A (en) * 2016-02-25 2016-04-27 吉林大学 Single-size CsPbX3 perovskite nanocrystalline preparation method
CN107311222A (en) * 2017-07-11 2017-11-03 重庆大学 CsPb2Br5The preparation method of nanometer sheet
CN107522225A (en) * 2017-09-18 2017-12-29 河北工业大学 A kind of synthetic method of inorganic perovskite nanometer sheet
CN108483487A (en) * 2018-04-26 2018-09-04 吉林大学 A kind of Cs of size, morphology controllable4PbBr6The nanocrystalline preparation method of perovskite

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
YIBING XU等: "Synthesis of ultrasmall CsPbBr3 nanoclusters and their transformation to highly deep-blue-emitting nanoribbons at room temperature", 《NANOSCALE》 *
彭路成: "胶体卤化铅铯钙钛矿纳米晶的制备及生长机制研究", 《中国博士学位论文全文数据库 工程科技I辑》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111233030A (en) * 2020-01-17 2020-06-05 南京工业大学 Perovskite CsPbBr3Preparation method of nanosheet
CN111233030B (en) * 2020-01-17 2022-04-15 南京工业大学 Perovskite CsPbBr3Preparation method of nanosheet
CN113135590A (en) * 2021-05-27 2021-07-20 南京邮电大学 Preparation method of perovskite nanorod
CN113980670A (en) * 2021-10-29 2022-01-28 中国科学院深圳先进技术研究院 Solid perovskite cluster, preparation method thereof and photoelectric device
WO2023070876A1 (en) * 2021-10-29 2023-05-04 中国科学院深圳先进技术研究院 Solid-state perovskite cluster and preparation method therefor, and photoelectric device
WO2023070866A1 (en) * 2021-10-29 2023-05-04 中国科学院深圳先进技术研究院 Perovskite cluster solution and preparation method therefor, and optoelectronic device
CN113980670B (en) * 2021-10-29 2023-11-14 中国科学院深圳先进技术研究院 Solid perovskite cluster, preparation method thereof and photoelectric device
CN114988463A (en) * 2022-05-27 2022-09-02 郑州大学 Halide perovskite patterning assembly method and application thereof
CN114988463B (en) * 2022-05-27 2023-10-24 郑州大学 Halide perovskite patterning assembly method and application thereof

Similar Documents

Publication Publication Date Title
CN110156071A (en) A kind of preparation method of the full-inorganic perovskite nanocluster assembly of high-sequential
Dey et al. State of the art and prospects for halide perovskite nanocrystals
Zhang et al. Colloidal synthesis of air-stable CH3NH3PbI3 quantum dots by gaining chemical insight into the solvent effects
El-Shazly et al. Nanostructured ZnO photocatalysts prepared via surfactant assisted Co-Precipitation method achieving enhanced photocatalytic activity for the degradation of methylene blue dyes
Wang et al. Controllable synthesis of ZnO nanocrystals via a surfactant-assisted alcohol thermal process at a low temperature
Li et al. A high activity photocatalyst of hierarchical 3D flowerlike ZnO microspheres: synthesis, characterization and catalytic activity
Kang et al. A facile gelatin-assisted preparation and photocatalytic activity of zinc oxide nanosheets
Pan et al. Templated self-assembly of one-dimensional CsPbX 3 perovskite nanocrystal superlattices
Imran et al. Switchable anion exchange in polymer-encapsulated APbX3 nanocrystals delivers stable all-perovskite white emitters
Shwetharani et al. Review on recent advances of core-shell structured lead halide perovskites quantum dots
Guo et al. Preparation of octahedral Cu2O nanoparticles by a green route
Yan et al. Tuning the Optical Properties of CsPbBr 3 Nanocrystals by Anion Exchange Reactions with CsX Aqueous Solution
Xu et al. Size-and surface-determined transformations: from ultrathin InOOH nanowires to uniform c-In2O3 Nanocubes and rh-In2O3 nanowires
CN103754837A (en) Method for preparation of bismuth-containing nano-hollow ball by using porous bismuth oxide as template
Sabbaghan et al. Synthesis and optical properties of CuO nanostructures in imidazolium-based ionic liquids
Lin et al. Effects of multiple irradiations on luminescent materials and energy savings–A case study for the synthesis of BaMO4: Ln3+ (M= W, Mo; Ln= Eu, Tb) phosphors
Shi et al. Mesoporous silica-coated CsPbX3 nanocrystals with high stability and ion-exchange resistance for bright white-emitting displays
Wang et al. Controllable synthesis of metastable γ-Bi2O3 architectures and optical properties
Pu et al. Process intensification for scalable synthesis of ytterbium and erbium co-doped sodium yttrium fluoride upconversion nanodispersions
Mntungwa et al. Facile synthesis of cysteine and triethanolamine capped CdTe nanoparticles
Deng et al. Novel Bi19S27Br3 superstructures: facile microwave-assisted aqueous synthesis and their visible light photocatalytic performance
Ge et al. Core-shell CsPbBr3@ Cs4PbBr6 nanocrystals dispersed in thermoplastic polyurethane as writeable heat-resistant fluorescent inks
Wu et al. Water-dispersed perovskite nanocube@ SiO2-C18-PC core–shell nanoparticles for cell imaging
Zhang et al. Microwave heating synthesis and formation mechanism of chalcopyrite structured CuInS2 nanorods in deep eutectic solvent
Li et al. Hexamethyldisilazane-triggered room temperature synthesis of hydrophobic perovskite nanocrystals with enhanced stability for light-emitting diodes

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190823

WD01 Invention patent application deemed withdrawn after publication