For a metal with workfunction close to the middle of the silicon bandgap is put in contact with a n-type silicon. The amount of carriers that are able to move freely across the junction depends on which of the following quantity(ies)?多项选择题

A

Work function of the metal

B

Work function of the silicon

C

Electron affinity of the silicon

D

Doping concentration of the silicon

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

类似问题

In a Schottky barrier contact between a metal and an n-silicon. If the doping concentration of the n region is halved, which of the following statement is/are correct?

Aluminium (Al) with the work function 4.3eV is used to form a contact with a p-type silicon which has the electron affinity of 4.1eV, workfunction of 4.85eV and bandgap energy of 1.1eV at room temperature. What is the barrier height for holes between Al and the valence band of the p-type silicon? [ans] eV

Project A has a required return on 9.2 percent and cash flows of −$87,000, $32,600, $35,900, and $43,400 for Years 0 to 3, respectively. Project B has a required return of 12.7 percent and cash flows of −$85,000, $14,700, $21,200, and $89,800 for Years 0 to 3, respectively. Which project(s) should you accept based on net present value if the projects are mutually exclusive?

You are considering two mutually exclusive projects. Project A has cash flows of −$72,000, $21,400, $22,900, and $56,300 for Years 0 to 3, respectively. Project B has cash flows of −$81,000, $20,100, $22,200, and $74,800 for Years 0 to 3, respectively. Both projects have a required 2.5-year payback period. Should you accept or reject these projects based on payback analysis?

更多留学生实用工具

加入我们，立即解锁 海量真题 与 独家解析，让复习快人一步！