CN113737279A - Preparation method of black phosphorus arsenic crystal - Google Patents

Preparation method of black phosphorus arsenic crystal Download PDF

Info

Publication number
CN113737279A
CN113737279A CN202111066810.3A CN202111066810A CN113737279A CN 113737279 A CN113737279 A CN 113737279A CN 202111066810 A CN202111066810 A CN 202111066810A CN 113737279 A CN113737279 A CN 113737279A
Authority
CN
China
Prior art keywords
arsenic
temperature
black phosphorus
phosphorus
tin iodide
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.)
Granted
Application number
CN202111066810.3A
Other languages
Chinese (zh)
Other versions
CN113737279B (en
Inventor
彭聪
宋家琪
梁彦杰
赵飞平
彭兵
柯勇
刘振兴
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.)
New Engine Changsha Technology Development Co ltd
Original Assignee
Central South 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 Central South University filed Critical Central South University
Priority to CN202111066810.3A priority Critical patent/CN113737279B/en
Publication of CN113737279A publication Critical patent/CN113737279A/en
Application granted granted Critical
Publication of CN113737279B publication Critical patent/CN113737279B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10Inorganic compounds or compositions
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/08Other phosphides
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/78Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by stacking-plane distances or stacking sequences
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The invention discloses a preparation method of black phosphorus arsenic crystal, which comprises the steps of mixing ash arsenic, red phosphorus and tin iodide in a protective atmosphere or a vacuum closed container, placing the mixture in a high-temperature reaction area for reaction, and synchronously crystallizing and depositing in a low-temperature deposition area to obtain black phosphorus arsenic crystal; the temperature of the high-temperature reaction area is not lower than 550 ℃, and the temperature of the low-temperature deposition area is 450-530 ℃. According to the invention, only low-doping tin iodide is used as an additive, and simultaneously used as a mineralizer and a transmission agent, and then the temperature of a high-temperature reaction region and a low-temperature deposition region is strictly controlled, so that the controllable synthesis of the blocky black phosphorus arsenic crystal is directly realized, the size of the obtained blocky black phosphorus arsenic crystal can reach 2-3cm, the impurity amount is small, the crystallinity is high, and the trend of preferential growth of a single crystal face family (010) is presented.

Description

Preparation method of black phosphorus arsenic crystal
Technical Field
The invention belongs to the technical field of preparation of high-end arsenic materials, and particularly relates to a preparation method of a black phosphorus arsenic crystal.
Background
The most advanced mid-and long-wavelength infrared detectors usually select narrow bandgap semiconductors such as tellurium-cadmium-amalgam or group III to V element based quantum well or quantum dot structure materials. However, these materials currently suffer from several important challenges in their wide-spread application. First, the growth conditions for these materials are often very complex, which makes them difficult to flexibly integrate with other semiconductors; secondly, even after the detector is manufactured, the requirement of high working environment (low temperature and stability) is met, and the use of the detector in most environments is limited under the condition of lacking complex refrigeration equipment. The discovery of the graphene provides a new idea for the application of the medium-long wave infrared detector under the room temperature condition: the two-dimensional material is applied to the manufacture of the medium-long wave infrared detector. However, the inherent zero band gap and extremely low light absorption of graphene can result in extremely high dark current and noise levels, limiting its practical application in the field of infrared detection. Currently, high performance mid-and long-wavelength infrared photodetectors capable of operating at room temperature have not been available. The black phosphorus arsenic can reach a band gap of 0.15-0.3eV by adjusting components, which means that the black phosphorus arsenic not only completely covers the middle wavelength infrared region of the spectrum, but also extends to the long wavelength infrared region (8-14 microns), and the two-dimensional material of the black phosphorus arsenic also has high carrier mobility and high on-off ratio characteristics, has unique potential which cannot be replaced in the infrared detection field, and gives new hope to the optical application of the long wavelength infrared region under the room temperature condition.
The black phosphorus-arsenic has an orthogonal lattice with a wrinkled honeycomb structure, and has strong in-plane covalent bonds and weak inter-layer van der Waals' effect, wherein the arsenic atoms and phosphorus atoms are distributed in a manner that the content of arsenic atoms is 0<As is less than or equal to 0.83, the unit cell volume of the black phosphorus arsenic crystal is in direct proportion to the proportion of arsenic atoms, and the lattice constant is usually b > c > a, wherein a, b and c are the lattice constants along the directions of zigzag, stacking and armchairs respectively. At present, a top-down method is a mainstream method for preparing black phosphorus and arsenic two-dimensional materials, and is generally a method for synthesizing black phosphorus and arsenic crystals by a chemical vapor transport method, and then the black phosphorus and arsenic two-dimensional materials are obtained by mechanical stripping or liquid phase stripping. Wherein, the synthesis of high-quality black phosphorus arsenic crystalIs key, and the existing gas-phase synthesis method mainly uses tin (Sn) and tin iodide (SnI)4) As a transmission agent, the doping of a large amount of Sn leads to high-tin-content impurities entering the black phosphorus arsenic material, so that the synthesis of the black phosphorus arsenic material with high quality and high purity is difficult to realize.
Disclosure of Invention
The invention aims to solve the technical problem that the synthesis of a high-quality and high-purity black phosphorus arsenic material is difficult to realize due to the large doping of Sn in the existing black phosphorus arsenic preparation process, and provides a preparation method of a black phosphorus arsenic crystal, wherein only tin iodide (SnI) with relatively low doping amount is used4) As a single transmission agent, the controllable synthesis of the black phosphorus arsenic crystal is realized.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a method for preparing black phosphorus-arsenic crystal comprises adding ash arsenic (As), red phosphorus (P) and tin iodide (SnI) in protective atmosphere or vacuum sealed container4) Mixing, placing the mixture in a high-temperature reaction area for reaction, and synchronously crystallizing and depositing in a low-temperature deposition area to obtain black phosphorus arsenic crystals; the temperature of the high-temperature reaction area is not lower than 550 ℃, and the temperature of the low-temperature deposition area is 450-530 ℃.
Preferably, the atomic ratio of the ash arsenic (As) to the red phosphorus (P) is 3: 1-1: 4; further preferably, the atomic ratio is 2:1 to 1: 1.
Preferably, the tin iodide (SnI)4) The addition amount of the additive is 1-4 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide; further preferably, the addition amount is 2-3 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
Preferably, the temperature of the high-temperature reaction area is 550-650 ℃, and the temperature of the low-temperature deposition area is 490-500 ℃.
Preferably, the reaction time is at least 12 h; further preferably 20 to 24 hours.
In the invention, raw materials of ash arsenic (As), red phosphorus (P) and transport agent of tin iodide (SnI)4) Gasifying at the temperature of the high-temperature reaction area, transferring the formed gaseous product to the low-temperature area under the pushing of the temperature difference gradient, and crystallizing and depositing arsenic and phosphorus at the temperature of the low-temperature deposition area to obtainWhen the black phosphorus arsenic product is obtained, the gaseous iodide returns to the high-temperature reaction region under the pushing of the concentration difference, so that the transmission process is continuously carried out, and the low-doped tin iodide (SnI)4) Meanwhile, the crystal is used as a mineralizer and a transmission agent to realize the controllable synthesis of the blocky black phosphorus arsenic crystal.
The invention has the advantages that:
1. the invention avoids large amount of tin (Sn) and tin iodide (SnI)4) Adding raw material of ash arsenic (As) and red phosphorus (P) with only low doping amount of tin iodide (SnI)4) As an additive, the tin doping amount is only 0.19-0.75 wt%, which is far lower than the high tin doping amount (more than 5 wt%) required by other black phosphorus and arsenic synthesis methods. Small amount of tin iodide (SnI)4) The crystal is used as a mineralizer and a transmission agent, and is cooperated with the strict control of the temperature of a high-temperature reaction area and a low-temperature deposition area to directly realize the controllable synthesis of the massive black phosphorus arsenic crystal.
2. The size of the blocky black phosphorus arsenic crystal obtained by the invention can reach 2-3cm, the impurity amount is small, the crystallinity is high, and the trend of preferential growth of a single crystal face family (010) is presented.
Drawings
FIG. 1 is a schematic view of the gas phase reaction principle of the present invention;
FIG. 2 is a graph comparing X-ray diffraction (XRD) results of bulk black phosphorus arsenic prepared under different As-P atomic ratios in example 1 of the present invention;
FIG. 3 is a diagram of a bulk black phosphorus arsenic prepared in example 1 of the present invention with an As-P atomic ratio of 1: 1;
FIG. 4 is a Scanning Electron Microscope (SEM) image of bulk black arsenic phosphide prepared with an As-P atomic ratio of 1:1 in example 1 of the present invention;
FIG. 5 is an X-ray diffraction (XRD) pattern of bulk black phosphorus arsenic prepared according to example 1 of the present invention with an As-P atomic ratio of 1: 1;
FIG. 6 is a Raman spectrum (Raman) chart of bulk black phosphorus arsenic prepared with an As-P atomic ratio of 1:1 in example 1 of the present invention;
FIG. 7 is a comparison graph of X-ray diffraction (XRD) results of bulk black phosphorus arsenic prepared under different addition amounts of transport agents when the As-P atomic ratio is 1:1 in examples 1-5 of the present invention;
FIG. 8 is a graph comparing the X-ray diffraction (XRD) results of the bulk black phosphorus arsenic prepared under different types of transport agents in example 1 and comparative examples 1-3.
Detailed Description
The invention is illustrated below with reference to examples, but the scope of protection of the invention is not limited to the examples.
Example 1
Step 1: cleaning the quartz tube with 2% hydrofluoric acid; the raw materials of arsenic (As) and red phosphorus (P) are ground into powder for standby.
Step 2: weighing ash arsenic (As) and red phosphorus (P) with a certain atomic ratio by using a ten-thousandth electronic balance As raw materials in an inert atmosphere of a glove box, and adding the raw materials into a quartz tube;
and step 3: 3 wt% tin iodide (SnI) was weighed in a glove box under an inert atmosphere using a ten thousandth electronic balance4) As a transmission agent, is added into a quartz tube;
and 4, step 4: plugging one end of the quartz tube by using a plug, then sealing the quartz tube by using a vacuum valve, and then taking the quartz tube out of the glove box;
and 5: vacuumizing the quartz tube by using a tube sealing machine, and sealing the quartz tube by using an oxyhydrogen machine;
step 6: horizontally placing the sealed quartz tube in a multi-temperature-zone tube furnace, setting the temperature of a double-temperature zone, then carrying out gas-phase synthesis reaction, wherein the temperature of a high-temperature reaction zone is 550 ℃, the temperature of a low-temperature deposition zone is 500 ℃, keeping the temperature for 20h, then cooling to 150 ℃, and finally naturally cooling to room temperature.
Taking the reaction system of example 1 As an example, XRD results of black phosphorus arsenic materials synthesized with different As-P atomic ratios are shown in FIG. 2, and it can be seen from the figure that black phosphorus arsenic materials can be obtained with As-P atomic ratios ranging from 3:1 to 1:4, preferably 2:1 to 1:1, and most preferably 1: 1.
In this example, the As-P atomic ratio of the synthesized material is 1:1 As shown in fig. 3; SEM results are shown in FIG. 4; the XRD results are shown in FIG. 5; the Raman results are shown in figure 6.
Example 2
As in example 1, the As-P atomic ratio was 1:1, differing only in thatTransport agent tin iodide (SnI)4) The addition amount of the additive is 4 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
Example 3
As-P in example 1, the atomic ratio As-P was 1:1, except that the transport agent tin iodide (SnI)4) The addition amount of the additive is 2 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
Example 4
As-P in example 1, the atomic ratio As-P was 1:1, except that the transport agent tin iodide (SnI)4) The addition amount of the additive is 1.5 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
Example 5
As-P in example 1, the atomic ratio As-P was 1:1, except that the transport agent tin iodide (SnI)4) The addition amount of the additive is 1 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
Comparative example 1
As-P in example 1, the atomic ratio As-P was 1:1, except that the transport agent tin iodide (SnI)4) Is added in an amount of 0%, i.e., tin iodide (SnI) is not added4)。
Comparative example 2
As-P in example 1, the atomic ratio As-P was 1:1, except that the transport agents were tin (Sn) and tin iodide (SnI)4) Wherein tin iodide (SnI)4) The addition amount of (A) is 3 wt% of the total mass of the ash arsenic, red phosphorus, tin and tin iodide, and the addition amount of (Sn) is 12 wt% of the total mass of the ash arsenic, red phosphorus, tin and tin iodide.
Comparative example 3
As-P atomic ratio was 1:1 As in example 1, except that the transport agent was tin (Sn), tin iodide (SnI)4) And gold (Au), in which tin iodide (SnI)4) The addition amount of (A) is 3 wt% of the total mass of the ash arsenic, red phosphorus, gold, tin and tin iodide, (B) the addition amount of tin (Sn) is 12 wt% of the total mass of the ash arsenic, red phosphorus, gold, tin and tin iodide, and (C) the addition amount of gold (Au) is 16 wt% of the total mass of the ash arsenic, red phosphorus, gold, tin and tin iodide.
As shown in fig. 8, in comparative example 1, the ash arsenic (As) and red phosphorus (P) can not be converted by themselves to obtain black arsenic phosphorus crystals without the action of the transmission agent; ash arsenic of comparative example 2 (As), red phosphorus (P), tin (Sn) and tin iodide (SnI)4) System and comparative example 3 of ash arsenic (As), red phosphorus (P), tin (Sn), tin iodide (SnI)4) Although the system can realize the conversion of arsenic and phosphorus to black phosphorus arsenic material with gold (Au), the product has more impurities and poorer crystal form. The invention adopts ash arsenic (As), red phosphorus (P) and tin iodide (SnI)4) The system can also realize the conversion of arsenic and phosphorus to black phosphorus arsenic materials, and the obtained blocky black phosphorus arsenic crystal has less impurity phases and high crystallinity and has the characteristic of single crystal face family expression of (010).

Claims (8)

1. A preparation method of black phosphorus arsenic crystal is characterized by comprising the following steps: in a protective atmosphere or a vacuum closed container, mixing ash arsenic, red phosphorus and tin iodide, placing the mixture in a high-temperature reaction area for reaction, and synchronously crystallizing and depositing in a low-temperature deposition area to obtain black phosphorus arsenic crystals; the temperature of the high-temperature reaction area is not lower than 550 ℃, and the temperature of the low-temperature deposition area is 450-530 ℃.
2. The method for preparing the black phosphorus-arsenic crystal according to claim 1, wherein the method comprises the following steps: the atomic ratio of the ash arsenic to the red phosphorus is 3: 1-1: 4.
3. The method for preparing the black phosphorus-arsenic crystal according to claim 2, wherein the method comprises the following steps: the atomic ratio of the ash arsenic to the red phosphorus is 2: 1-1: 1.
4. The method for preparing the black phosphorus-arsenic crystal according to claim 1, wherein the method comprises the following steps: the addition amount of the tin iodide is 1-4 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
5. The method for preparing the black phosphorus-arsenic crystal according to claim 4, wherein the method comprises the following steps: the addition amount of the tin iodide is 2-3 wt% of the total mass of the ash arsenic, the red phosphorus and the tin iodide.
6. The method for preparing the black phosphorus-arsenic crystal according to claim 1, wherein the method comprises the following steps: the temperature of the high-temperature reaction area is 550-650 ℃, and the temperature of the low-temperature deposition area is 490-500 ℃.
7. The method for preparing the black phosphorus-arsenic crystal according to claim 1, wherein the method comprises the following steps: the reaction time is at least 12 h.
8. The method for preparing the black phosphorus-arsenic crystal according to claim 7, wherein the method comprises the following steps: the reaction time is 20-24 h.
CN202111066810.3A 2021-09-13 2021-09-13 Preparation method of black phosphorus arsenic crystal Active CN113737279B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111066810.3A CN113737279B (en) 2021-09-13 2021-09-13 Preparation method of black phosphorus arsenic crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111066810.3A CN113737279B (en) 2021-09-13 2021-09-13 Preparation method of black phosphorus arsenic crystal

Publications (2)

Publication Number Publication Date
CN113737279A true CN113737279A (en) 2021-12-03
CN113737279B CN113737279B (en) 2022-07-15

Family

ID=78738195

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111066810.3A Active CN113737279B (en) 2021-09-13 2021-09-13 Preparation method of black phosphorus arsenic crystal

Country Status (1)

Country Link
CN (1) CN113737279B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115807211A (en) * 2023-02-08 2023-03-17 中南大学 Preparation method and device of arsenic-phosphorus thin film material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190055668A1 (en) * 2016-04-01 2019-02-21 Suzhou Institute of Nano- Tech and Nano-Bionics (Sinano), Chinese Academy of Sciences Black Phosphorus Crystal Having High Photoelectric Response Rate, Two-Dimensional Black Phosphorus PN Junction, and Preparation Method and Use Thereof
CN109913946A (en) * 2018-04-18 2019-06-21 清华-伯克利深圳学院筹备办公室 A kind of method that vapor transportation method prepares black arsenic phosphorus monocrystalline
CN112093784A (en) * 2020-09-25 2020-12-18 深圳大学 Preparation method and application of two-dimensional black arsenic-phosphorus nano material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190055668A1 (en) * 2016-04-01 2019-02-21 Suzhou Institute of Nano- Tech and Nano-Bionics (Sinano), Chinese Academy of Sciences Black Phosphorus Crystal Having High Photoelectric Response Rate, Two-Dimensional Black Phosphorus PN Junction, and Preparation Method and Use Thereof
CN109913946A (en) * 2018-04-18 2019-06-21 清华-伯克利深圳学院筹备办公室 A kind of method that vapor transportation method prepares black arsenic phosphorus monocrystalline
CN112093784A (en) * 2020-09-25 2020-12-18 深圳大学 Preparation method and application of two-dimensional black arsenic-phosphorus nano material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115807211A (en) * 2023-02-08 2023-03-17 中南大学 Preparation method and device of arsenic-phosphorus thin film material

Also Published As

Publication number Publication date
CN113737279B (en) 2022-07-15

Similar Documents

Publication Publication Date Title
Mitzi et al. Conducting tin halides with a layered organic-based perovskite structure
CN108039403B (en) Batch preparation method of high-quality wafer-level bismuth selenide semiconductor single-crystal film
US9334443B1 (en) Synthesis of CsSnI3 by a solution based method
CN113278948B (en) Tin sulfide/tin disulfide heterojunction material and preparation method thereof
CN111876828B (en) Two-dimensional bismuth sulfide crystal material and preparation method thereof
CN113737279B (en) Preparation method of black phosphorus arsenic crystal
CN112301239A (en) Preparation method of cadmium arsenide
CN112960660A (en) Black phosphorus nanobelt material and preparation method thereof
Tang et al. Inhibition of volatilization and polycrystalline cracking, and the optical properties of β-Ga 2 O 3 grown by the EFG method
CN115041677A (en) Chemical vapor deposition of Bi on mica 2 O 2 Method for preparing Te nanosheet
CN101885475B (en) Method for synthesizing elemental selenium nano belt
JP2016523806A (en) Novel form of silicon and method for producing the same
CN108330543A (en) A kind of N-type SnSe monocrystalline and preparation method thereof
CN107892282B (en) Lead telluride nanorod with uniform size, preparation method and application thereof
CN113186590B (en) Preparation method of centimeter-level molybdenum trioxide single crystal
Fu et al. Synthesis, crystal structure and optical properties of Ce doped CuInSe2 powders prepared by mechanically alloying
Friedman et al. Comparison of hydrazine, dimethylhydrazine, and t-butylamine nitrogen sources for MOVPE growth of GaInNAs for solar cells
Khemiri et al. Synthesis and Characterization of CuIn 2n+ 1 S 3n+ 2 (with n= 0, 1, 2, 3 and 5) Powders
US11761112B2 (en) Method for preparing large-size two-dimensional layered metal thiophosphate crystal
CN114686986B (en) SnSe 2 Method for producing single crystal
Zhang et al. Growth of submillimeter-scale single crystal 2D BiI3 by the cooling-induced growth method in a confined space
US5275966A (en) Low temperature process for producing antimony-containing semiconductor materials
Kim et al. Optical absorption of Co2+ ions in In2S3 thin films
CN116288711A (en) Black phosphorus arsenic material, preparation method thereof and application thereof in semiconductor device
CN103820851B (en) A kind of preparation method of multi-crystal Hg iodide film inculating crystal layer

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
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20240419

Address after: Building G5-1, Lushan Science and Technology Innovation Park, No. 966 Lushan South Road, Science Village Community, Yuelu Street, Yuelu District, Changsha City, Hunan Province, 410006

Patentee after: New Engine (Changsha) Technology Development Co.,Ltd.

Country or region after: China

Address before: Yuelu District City, Hunan province 410083 Changsha Lushan Road No. 932

Patentee before: CENTRAL SOUTH University

Country or region before: China

TR01 Transfer of patent right