摘要:
Compound semiconductors, expressed by the following formula: Bi1-xMxCuwOa-yQ1yTeb-zQ2z. Here, M is at least one element selected from the group consisting of Ba, Sr, Ca, Mg, Cs, K, Na, Cd, Hg, Sn, Pb, Eu, Sm, Mn, Ga, In, Tl, As and Sb; Q1 and Q2 are at least one element selected from the group consisting of S, Se, As and Sb; x, y, z, w, a, and b are 0≦x
摘要:
Glass particles including Li, P and S, wherein when a Raman spectrum of the glass particles is measured five times or more and a peak at 330 to 450 cm−1 in the Raman spectrum is separated into peaks of components by waveform separation, the standard deviation of the area ratio of each of the peaks of the components is 3.0 or less, the area of the peak of PS43− component obtained by the waveform separation is 10 to 95% of the total area, and the area of P2S74− component obtained by the waveform separation is 5 to 45% of the total area, and the area of the peak of PS43− component is larger than the area of the peak of P2S74− component.
摘要:
A colloidal material including semiconductor nanocrystals of formula AnXm, wherein A is selected from group Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, Vb, VIb, VIIb, VIII, IIb, III, IV or mixtures thereof, X is selected from group Va, VIa, VIIa or mixtures thereof, and n and m are independently a decimal number from 0 to 5. The semiconductor nanocrystals have a quasi 2D structure, wherein the smallest dimension is smaller than the other two dimensions by a factor of at least 1.5 and the faces substantially normal to the smallest dimension consist either of A or X. Also, a semiconducting thin film, an optoelectronic device, a laser, a photovoltaic cell, a diode, a light emitting diode or a display including the colloidal material.
摘要:
Nanocrystals comprising organic ligands at surfaces of the plurality of nanocrystals are provided. The organic ligands are removed from the surfaces of the nanocrystals using a solution comprising a trialkyloxonium salt in a polar aprotic solvent. The removal of the organic ligands causes the nanocrystals to become naked nanocrystals with cationic surfaces.
摘要:
A novel multiband absorption based solar cell is disclosed by using the europium chalcogenides (EuX, X═O, S, Se, Te) and related magnetic semiconductor materials, in which an intermediate band is formed by the localized Eu 4f electrons between p-states of chalcogen ions and Eu s-d states. The energy gaps among the multibands can be in the spectral range of the sunlight, thus they can serve as better sunlight absorbers in solar cells than the conventional single band-gap semiconductors such as Si and GaAs. With these multiband semiconductors, the bottleneck in current power conversion efficiency can be potentially overcome in single junction photovoltaics.
摘要:
An iridium-containing group II-VI compound phosphor capable of efficiently emitting light without any economical problems or problems in energy efficiency or color purity is provided. A method for producing the phosphor is also provided. The phosphor comprises iridium and a group II-VI compound semiconductor, and the iridium is uniformly dispersed in surfaces of phosphor particles and in an inside of the phosphor particles. The method for producing the iridium-containing phosphor comprises firing an inorganic composition containing a group II-VI compound semiconductor and an iridium compound, and an iridium complex salt is used as the iridium compound.
摘要:
This invention relates to processes for making kesterite compositions with atypical Cu:Zn:Sn:S ratios and/or kesterite compositions with unusually small coherent domain sizes. This invention also relates to these kesterite compositions and their use in preparing CZTS films.
摘要:
Method for the preparation of inorganic-NP-composite microgels is based on the reversible transfer of microgels between water and an organic solvent such as tetrahydrofuran (THF). The method is used to produce semiconductor nanocrystals, often referred to as quantum dots (QDs) which are well known for their unique optical, electrical, magnetic and catalytic properties, as the inorganic NPs, recognizing that the best quality QDs are synthesized by a high temperature process in organic media, and have their surface covered with hydrophobic ligands (such as trioctylphosphine oxide, TOPO) that render the NPs insoluble in an aqueous solution.
摘要:
A solid electrolyte and a method of manufacturing the same are provided. The solid electrolyte contains x atomic % of lithium, y atomic % of phosphorus, z atomic % of sulfur, and w atomic % of oxygen, in whichthe x, the y, the z, and the w satisfy the following expressions (1)-(5): 20≦x≦45 (1) 10≦y≦20 (2) 35≦z≦60 (3) 1≦w≦10 (4) x+y+z+w=100 (5), and apexes of X-ray diffraction peaks in an X-ray diffraction pattern obtained by an X-ray diffraction method using a Kα-ray of Cu exist at diffraction angles 2θ of 16.7°±0.25°, 20.4°±0.25°, 23.8°±0.25°, 25.9°, 0.25°, 29.4°±0.25°, 30.4°±0.25°, 31.7°±0.25°, 33.5°±0.25°, 41.5°±0.25°, 43.7°±0.25°, and 51.2°±0.25°, respectively, in the X-ray diffraction pattern, and a half-width of each of the X-ray diffraction peaks is not larger than 0.5°.
摘要翻译:提供固体电解质及其制造方法。 固体电解质含有x原子%的锂,y原子%的磷,z原子%的硫和w原子%的氧,其中x,y,z和w满足以下表达式(1) (4)x + y + z + w = 100(5)其中n为1,n为1,n为1,n为1, 并且通过使用Cu的Kα射线通过X射线衍射法获得的X射线衍射图中的X射线衍射峰的顶点存在于衍射角2θ处; 为16.7°±0.25°,20.4°±0.25°,23.8°±0.25°,25.9°,0.25°,29.4°±0.25°,30.4°±0.25°,31.7°±0.25°,33.5°±0.25°,41.5° °±0.25°,43.7°±0.25°,51.2°±0.25°,X射线衍射峰的半宽度不大于0.5°。
摘要:
The present application relates to a process for the preparation of compounds of general formula (I) Lia-bM1bFe1-cM2cPd-eM3eOx (I), wherein M1, M2, M3, a, b, c, d, e and x: M1: Na, K, Rb and/or Cs, M2: Mn, Mg, Ca, Ti, Co, Ni, Cr, V, M3: Si, S, a: 0.8-1.9, b: 0-0.3, c: 0-0.9, d: 0.8-1.9, e: 0-0.5, x: 1.0-8, depending on the amount and oxidation state of L1, M1, Fe, M2, P, M3, wherein compounds of general formula (I) are neutrally charged, comprising the following steps (A) providing an essentially aqueous mixture comprising at least one lithium-comprising compound, FeOOH as iron-comprising compound and at least one M1-comprising compound, if present, and/or at least one M2-comprising compound, if present, and/or least one M3-comprising compound, if present, at least one compound comprising at least one phosphorous atom and at least one reducing agent, (B) drying the mixture provided in step (A), in order to obtain a solid compound and (C) calcining the solid compound obtained from step (A) or (B) at a temperature of 300 to 950° C.