31results about How to "Achieve large area deposition" patented technology

Provided is a preparation method of hydrogen and hafnium co-doped indium oxide film having room-temperature ferromagnetism. A direct-current magnetron sputtering method is adopted. An In2O3 ceramic target accounting for 1.5-10% of the doping amount of hafnium oxide (HfO2) by weight is used as a target material, monocrystalline silicon serves as a substrate, high-purity argon (Ar) having the purityof 99.99% or above serves as sputtering gas, hydrogen (H2) is introduced in the sputtering process to serve as doping source for deposition, and the hydrogen and hafnium co-doped indium oxide film having different magnetization characteristics is obtained.

The invention provides a multielement composite transparent conductive film and a preparation and application thereof, relating to the field of preparation of semiconductor materials. The preparation method comprises the following steps of: preparing an AZO target: mixing Al2O3 powder with ZnO powder to obtain a mixture and sintering the mixture to be used as the target, wherein the molar weight ratio of Al2O3 to ZnO is 1 / 120-1 / 35; preparing an ATO target: mixing Sb2O3 powder with SnO2 powder to obtain a mixture and sintering the mixture to be used as the target, wherein the molar weight ratio of Sb2O3 to SnO2 is 1 / 9-1 / 4; and depositing a film: feeding the AZO target and the ATO target into a magneto-controlled sputtering chamber, vacuumizing and setting the following parameters, namely, the substrate temperature is 500-800 DEG C, the inert gas flow is 15sccm-25sccm, the pressure intensity is 0.2-1.6Pa, the sputtering powers of the AZO target and the ATO target are respectively 60-160W, and the deposition time is 40-240min.

The invention discloses a p-type CaMSnO amorphous oxide semiconductor thin film, wherein the valence of Ca is +2, M is one of VIIIB group transition metals Fe, Co and Ni, the valence of M is +3, and Ca and M are combined with O to form a p-type conductive substrate of the material; and the valence of Sn is +2, p-type conduction is also formed in the substrate at the same time, and the Sn is provided with a spherical electron orbit and highly overlapped with electron cloud in an amorphous state so as to play a role of a hole transmission channel. The invention further provides a method for preparing the p-type CaMSnO amorphous oxide semiconductor thin film, which comprises the steps of firstly preparing a CaCoSnO ceramic piece according to a sintering method, and preparing a p-type CaMSnO amorphous oxide semiconductor thin film by taking the CaCoSnO ceramic piece as a target material according to a pulse laser deposition method, wherein the hole concentration is in a range of 10<12>cm<-3> to 10<14>cm<-3>. The thin film prepared according to the method can be applied to a P-type amorphous thin-film transistor.

The invention relates to the field of preparation of semiconductor materials, and provides a nitrogenous magnesium silicate film which is a titanium-doped nitrogenous magnesium silicate film of which the general formula is Mg1-XSi2O2N2:XTi4+, wherein X-0.01-0.15. The invention also provides a preparation method of the nitrogenous magnesium silicate film, which comprises the following steps: mixing MgO powder, SiO2 powder, Si3N4 powder and TiO2 powder, and sintering to obtain a target; and filling the target into a magnetron sputtering chamber, vacuumizing, setting working parameters, and sputtering to obtain the nitrogenous magnesium silicate film. The invention also provides application of the nitrogenous magnesium silicate film in electroluminescent devices.

The invention discloses a p-type amorphous oxide semiconductor thin film. The p-type amorphous oxide semiconductor thin film is CrMCuO, and the thin film is amorphous and has p-type conductivity, wherein Cr is of +3 valence; M is one of Zn, Mg and Mn elements and is of +2 valence, and Cr and M are jointly combined with O to form a p-type conductive matrix of the CrMcuO thin film; Cu is of +1 valence, Cu, Cr and M co-act to form spatial network structures, and the spatial network structures are connected with each other in an amorphous state to achieve the effect of a hole transport channel. The invention further provides a preparation method of the p-type CrMgCuO amorphous oxide semiconductor thin film. The p-type CrMgCuO amorphous thin film is prepared by using a CrMgCuO ceramic chip as the target, adopting a radio-frequency magnetron sputtering method and using Ar-O2 as a working gas. The prepared thin film can be used for p-type amorphous thin film transistor.

The invention discloses a p-type LaMSnO amorphous oxide semiconductor thin film. In LaMSnO, the valence of La is +3, M is one of Nb, Sr, Cu and Fe, and M is of complete oxidation chemical valence state, namely, the valence of Nb is +5, the valence of Sr is +2, the valence of Cu is +2, and the valence of Fe is +3; La and M are combined with O to form a p-type conducive substrate of the material; and the valence of Sn is +4, the Sn is provided with a spherical electron orbit and highly overlapped with electron cloud in an amorphous state so as to play a role of a hole transmission channel. The invention further provides a preparation method of the p-type LaMSnO amorphous oxide semiconductor thin film, which is characterized in that a LaNbSnO ceramic piece formed by sintering is taken as a target material, a p-type LaNbSnO amorphous thin film is prepared according to a radio frequency magnetron sputtering method, wherein the hole concentration is in a range of 10<13>cm<-3> to 10<14>cm<-3>. The thin film prepared according to the method can be applied to a P-type amorphous thin-film transistor.

The invention relates to a chemical preparation technology of a Cu(InAl)Se2 film. The technology is a preparation method of chemical deposition. The method is characterized by: taking soda-lime glass as a substrate; firstly, using a radio frequency (RF) magnetron sputtering method to sputter molybdenum (Mo) metal so as to make a back electrode on the substrate; then, using a chemical bath deposition (CBD) method to deposit a CIAS film on the Mo back electrode. Through using the CBD method to prepare the CIAS film, material consumption is small; expensive vacuum equipment is not needed; a toxic gas does not need to be processed and the large area deposition can be realized. A forbidden band width of the prepared CIAS film is 1.44eV, which is an optimal band gap of a single-junction solar cell. And a luminous absorption coefficient is greater than 10<6>cm<-1>.

The invention discloses a p-type NiMSnO amorphous oxide semiconductor film, the element M in the NiMSnO has low standard electrode potential and high binding energy with O, an oxide formed by the M and the O is a high-resistance oxide, the forbidden band width of the oxide is larger than 3 eV, and the M is any one of Be, Mg, Ca, Sr, Ba, B, Al, Ga, In, Sc, Y, Si, Ge, Hf, Zr, Mn, Fe, Nb, V, Sc, Rh or Co; in addition, Ni is +2 valence and is a matrix element in the p-type NiMSnO amorphous oxide, and the Ni is combined with the O to form the p-type conduction characteristic of the NiMSnO; the M is combined with the O in a matrix and is served as a control element of hole concentration; and Sn is +2 valence and combined with the O to play a role of a hole transmission channel. The invention furthermore discloses a preparation method of the p-type NiMSnO amorphous oxide semiconductor film. A NiGaSnO ceramic wafer is served as a target material, a pulse laser deposition method is adopted, the hole concentration of the prepared p-type NiMSnO amorphous oxide semiconductor film is 10<12>-10<14>m<3>, and visible light transmittance is larger than or equal to 80%. The film material provided by the invention can be used for a p-type amorphous film transistor.

The invention relates to a piston with a (Ti, Al)N multilayer heat insulating and wear resisting super-thick coating on the surface and a preparation technology and application of the piston. The structure of the piston comprises two schemes. According to the first scheme, the piston comprises a base, a TiAl transition layer and a TiAlN clad layer, and the TiAl transition layer evenly wraps the base; and the TiAlN clad layer evenly wraps the TiAl transition layer. According to the second scheme, the piston comprises a base, a first TiAl transition layer, a first TiAlN clad layer, a second TiAltransition layer and a second TiAlN clad layer, and the piston structurally comprises the base, the first TiAl transition layer, the first TiAlN clad layer, the second TiAl transition layer and the second TiAlN clad layer in sequence. According to application of the piston, the piston is used for an internal combustion engine. The designed piston surface has heat insulation performance, wear resistance, oxidation resistance and heat shock resistance, and the service life of the piston is effectively prolonged.

The invention provides a multielement composite transparent conductive film and a preparation and application thereof, relating to the field of preparation of semiconductor materials. The preparation method comprises the following steps of: preparing an AZO target: mixing Al2O3 powder with ZnO powder to obtain a mixture and sintering the mixture to be used as the target, wherein the molar weight ratio of Al2O3 to ZnO is 1 / 90-1 / 50; preparing an ATO target: mixing Sb2O3 powder with SnO2 powder to obtain a mixture and sintering the mixture to be used as the target, wherein the molar weight ratioof Sb2O3 to SnO2 is 1 / 7-1 / 5; and depositing a film: feeding the AZO target and the ATO target into a magneto-controlled sputtering chamber, vacuumizing and setting the substrate temperature to be 500-800 DEG C, and loading a negative bias on the substrate, wherein the inert gas flow is 15sccm-25sccm, the pressure intensity is 0.2-1.6Pa, the sputtering powers of the AZO target and the ATO target are respectively 60-160W, and the deposition time is 40-240min.

The invention relates to the field of semiconductor photoelectric materials, and provides a multielement-doped strontium phosphate luminescent film which has a general formula of Sr[2-x-y-z]P2O7 : xSn<4+>, yTi<4+>, zEu<3+>, wherein x value is 0.01-0.1; y value is 0.005-0.05; and z value is 0.01-0.04. The invention also provides a preparation method for the multielement-doped strontium phosphate luminescent film and applications of the multielement-doped strontium phosphate luminescent film obtained by the method in field emission devices, cathode-ray tubes or electroluminescent devices.

The invention discloses a p-type ZnRhMo amorphous oxide semiconductor film. In ZnRhMo, Zn is Zn(+2), Rh is Rh(+3), and the two are combined with O to form a p-type conductive basal body of a material, wherein M is one from Cu, Ni and Sn and is at a suboxidation chemical state, i.e., when M is Cu, the M is Cu(+1), when M is Ni, the M is Ni(+2), and when M is Sn, the M is Sn(+2); and M is doped in the basal body to form p-type conduction, M acts with Zn and Rh to form a space network structure, and the three communicate with one another at an amorphous state to function as a cavity transmission channel. The invention further discloses a method for preparing the p-type ZnRhMo amorphous oxide semiconductor film. By taking a sintered ZnRhCuO ceramic chip as a target material, a p-type ZnRhCuO amorphous film is prepared by use of a pulse laser depositing method, the cavity concentration is 10<13> to 10<15>cm<-3>, and the visible light transmittance is greater than or equal to 87%. The p-type ZnRhMo amorphous oxide semiconductor film disclosed by the invention can be applied to a p-type amorphous film transistor.

The invention relates to the field of semiconductor material production, and provides a method for producing a silicon doping zinc oxide film, a produced film and an application thereof, wherein the method comprises the following steps that: SiO2 powder and ZnO powder are mixed and sintered to be used as an SZO target, and the mass ratio of SiO2 to ZnO is 1:199-1:66; and the SZO target is contained in a magnetron sputtering cavity, the cavity is vacuumized, sputtering parameters are set, and a silicon doping zinc oxide film is sputtered onto a substrate. The invention further provides the silicon doping zinc oxide film which is produced by the method and the application of the silicon doping zinc oxide film on semiconductor photoelectric devices.

The invention discloses a novel twin external rotating cathode, which comprises a common target sleeve, a twin cooling water system, a common technical gas inlet system, a twin weight equalizer system, a common rotary power system, a twin electric power access system, a twin observation window and a common security protection hood, wherein a motor of the common rotary power system drives the common target sleeve to rotate at the same speed through a synchronous belt synchronizing wheel; the common technical gas inlet system introduces working gas to keep the vacuum in the working vacuum degree; and the twin electric power access system is used for accessing corresponding high voltage, so that the gas is ionized into plasma, thereby carrying out magnetron sputtering coating in a balanced magnetic field provided by the twin weight equalizer system. By adopting the linear twin rotating cathode design, the novel large-area twin external rotating cathode has the characteristics of high deposition rate, wide uniform settling region, high target utilization ratio and high technical stability, and can implement continuous target face self-cleaning and arbitrary-angle installation.