砷化镓中的杂质硅是两性物质(有时成为施主,有时成为受主),因此它成为很有趣的研究对象。在制作发光二极管,莱塞和一系列其它专用器件时,采用硅作杂质。除此之外硅常以沾污杂质的形式存在于砷化镓中。人们对硅在同质合金样品中的行为,研究得比较详细。但与此相反,对硅在砷化镓中扩散的研究就特别少。 Silicon in gallium arsenide is an amphipathic substance (sometimes a donor, sometimes an acceptor), making it an interesting subject of study. Silicon is used as an impurity in the fabrication of LEDs, Layers, and a host of other specialized devices. In addition, silicon is often present in gallium arsenide as contaminants. The behavior of silicon in homogeneous alloy samples has been studied in more detail. In contrast, however, there is particularly little research into the diffusion of silicon into gallium arsenide.