Abstract

Comparative results of the synthesis, X-ray, Raman spectroscopy, and electron-microscopy studies, and determination of the acidity of the surface of solid solutions (pH_iso) of InP–CdS, InP–CdTe systems, differing in the second binary components (CdS, CdTe) and nevertheless including the common element (Cd) are presented. The formation of substitutional solid solutions with a cubic sphalerite structure in both systems is demonstrated. Their surfaces are of a slightly acidic nature at a greater degree of acidity of the solid-solution surfaces of the InP–CdTe system. With a variation in the system composition, the studied properties change both steadily (lattice parameters, interplanar distances) and drastically (theoretically calculated crystal density, average number of particles, pH_iso). At the same time, the system generality is found in correlations between the рH_iso = f(x_CdS), ρ_r = f(x_CdS) and рH_iso = f(x_CdTe), ρ_r = f(x_CdTe) dependences. The noted generality and difference in the systems are explained by the predominant, but different influence on the solid-solution properties of the second binary components (CdS, CdTe) and the “behavior” of the common element (Cd). Based on the correlations between the plotted diagrams “property–composition”, the possibility of the easier search for advanced materials suitable for the fabrication of sensors is proposed.

中文翻译：

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InP–CdB VI系统的半导体吸附剂的理化性质

摘要

合成，X射线，拉曼光谱和电子显微镜研究的比较结果，以及InP–CdS，InP–CdTe系统的固溶体表面的酸度（pH _iso）的确定，不同之处在于第二个二元组分（CdS，CdTe），并包括公共元素（Cd）。在两个系统中都证明了具有立方闪锌矿结构的替代固溶体的形成。在InP–CdTe系统的固溶表面上，它们的表面具有较高的酸度，呈弱酸性。随着系统组成的变化，研究的特性既稳定地变化（晶格参数，晶面距离）又急剧变化（理论上计算出的晶体密度，平均颗粒数，pH_等值线））。同时，该系统一般性在рH之间的相关性发现_异= ˚F（X_硫化镉），ρ _[R = ˚F（X_硫化镉）和рH_异= ˚F（X_的CdTe），ρ _[R = ˚F（X_的CdTe）依赖项。系统中指出的一般性和差异是由主要但对第二种二元组分（CdS，CdTe）和公共元素（Cd）的“行为”的固溶特性有不同影响的原因来解释的。基于绘制的图“属性-组成”之间的相关性，提出了更容易地搜索适合于传感器制造的高级材料的可能性。