As starting material we have 99.999999 at.% Si (= 8 nines or 8N). The only dopant...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
As starting material we have 99.999999 at.% Si (= 8 nines or 8N). The only dopant is aluminium and we call this 8N-Si(Al) (see periodic table). At room temperature the electron mobility in Si is pe=0.25 m2/(Vs), the hole mobility ph=0.05 m2/(Vs), unit of charge 1.6 10-19 C, the density of Si p=2.33 g/cm3, the atomic mass of Si 28.08 and Avogadro's number 6.022 1023. a. What is the electrical conductivity of this material at room temperature (where conduction can be considered in the pure extrinsic exhaustion/saturation regime)? Apart from the starting material, also the auxiliary materials 8N-Si(Ga) and 8N-Si(As) are in stock. b. We want to make an intrinsic semiconductor by melting the starting material together with one of the auxiliary materials. Which auxiliary material we have to choose and in what ratio we have to melt the two materials together? c. With which one of the two auxiliary materials together with the starting material can we make a semiconductor with a conductivity (at room temperature) of o = 8.0 (Om)-1? What is then the type of semiconductor we have? What is then the required ratio for melting together the starting material with the auxiliary material? As starting material we have 99.999999 at.% Si (= 8 nines or 8N). The only dopant is aluminium and we call this 8N-Si(Al) (see periodic table). At room temperature the electron mobility in Si is pe=0.25 m2/(Vs), the hole mobility ph=0.05 m2/(Vs), unit of charge 1.6 10-19 C, the density of Si p=2.33 g/cm3, the atomic mass of Si 28.08 and Avogadro's number 6.022 1023. a. What is the electrical conductivity of this material at room temperature (where conduction can be considered in the pure extrinsic exhaustion/saturation regime)? Apart from the starting material, also the auxiliary materials 8N-Si(Ga) and 8N-Si(As) are in stock. b. We want to make an intrinsic semiconductor by melting the starting material together with one of the auxiliary materials. Which auxiliary material we have to choose and in what ratio we have to melt the two materials together? c. With which one of the two auxiliary materials together with the starting material can we make a semiconductor with a conductivity (at room temperature) of o = 8.0 (Om)-1? What is then the type of semiconductor we have? What is then the required ratio for melting together the starting material with the auxiliary material?
Expert Answer:
Answer rating: 100% (QA)
Answer the materials aluminium En Si Q9999999 At temperakure eetr... View the full answer
Related Book For
Materials Science and Engineering An Introduction
ISBN: 978-0470419977
8th edition
Authors: William D. Callister Jr., David G. Rethwisch
Posted Date:
Students also viewed these economics questions
-
At room temperature the electrical conductivity and the electron mobility for copper are 6.0 107 (-m)-1 and 0.0030 m2/V-s, respectively. (a) Compute the number of free electrons per cubic meter for...
-
At room temperature the electrical conductivity and the electron mobility for aluminum are 3.8 107 (.m)-1 and 0.0012 m2/V.s, respectively. (a) Compute the number of free electrons per cubic meter...
-
At room temperature the electrical conductivity of PbTe is 500 (-m)-1, whereas the electron and hole mobilities are 0.16 and 0.075 m2/V-s, respectively. Compute the intrinsic carrier concentration...
-
Why is Supplier Relationship is important to a business. explain
-
Compare the difficulty of making models of trans-bicyclo[3.1.0]hexane and transbicyclo[ 5.3.0]decane. Which is easier to make? Explain.
-
If you have downloaded the source code you will find the following files in the Chapter 07 folder: GirlNames.txt This file contains a list of the 200 most popular names given to girls born in the...
-
During the period ended 30 June 2023, Ru Li, an employee of Westshore Company, purchased goods from the company on normal commercial terms and conditions. Li receives remuneration consisting of cash...
-
Shapiro Inc. was incorporated in 2010 to operate as a computer software service firm with an accounting fiscal year ending August 31. Shapiro's primary product is a sophisticated online...
-
You are planning a 30-day vacation in Malaysia in one year's time. The present charge for a luxury suite plus meals is RM760.00 per day and the RM is presently trading at RM 3.8000/$. Hence the $...
-
Margie Company needs your help to record and summarize its accounting transactions for 2021 and to prepare its financial statements for that year. Margie Company provided you with the following...
-
54. which of the following clinical findings is not seen in women with ashermans syndrome a. Hypomenorrhea b. Primary amenorrhea c. Cyclic pain d. Recurrent pregnancy loss
-
If the British subsidiary of a European firm has net exposed assets of 125,000, and the pound increases in value from 1.40/ to 1.44/, the European firm has a translation: ?
-
Galaxy's Swiss subsidiary has the following balance sheet: Cash, mark securities SF 250,000 Accounts receivable Inventory (at market. Fixed Assets Total assets 1,000,000 2,700,000 5,100,000- SF O a...
-
Company ABC's growth rate in dividends in the following year is anticipated to be 7% and this rate is expected to decrease by 1% per year until it reaches a perpetual rate of 4%. It has just declared...
-
A stock is currently $210 per share. Ignore dividends. You will invest $21,000 of your own money. In addition, you can borrow another $21,000 at 12% per year. What is the 1-year return if stock goes...
-
Suppose PepsiCo hedges a 1 billion dividend it expects to receive from its Japanese subsidiary in 90 days with a forward contract. The current spot rate is 150/$1 and the 90 day forward rate is...
-
The average human heart beats 1.15*10^(5) times per day. There are 3.65*10^(2) days in one year. How many times does the heart beat in one year? Write your answer in scientific notation, and round to...
-
Write a paper about how diet relates to breast cancer in women study design to use: case control study purpose & rationale the purpose of this final project is to utilize the methods and...
-
Assume that the commercial iron (99.95 wt% Fe) in Table 20.5 just reaches the point of saturation when inserted within the coil in Problem 20.1. Compute the saturation magnetization.
-
The dielectric constant for a soda-lime glass measured at very high frequencies (on the order of 1015 Hz) is approximately 2.3. What fraction of the dielectric constant at relatively low frequencies...
-
Two previously under formed specimens of the same metal are to be plastically deformed by reducing their cross-sectional areas. One has a circular cross section, and the other is rectangular; during...
-
Determine the irrep content for the equivalent reducible \(S_{3}\) representations \(\Gamma^{(4)}\) and \(\Gamma^{(5)}\) of Fig. 2.4 . Data from Fig. 2.4 F(1) (2) 1 (3) (4) r(5) (6) 1 0 0 0 0 0 0 1 0...
-
Prove that the direct product of two representations is a representation, and that the character of the direct product is the product of characters for the representations.
-
Show that the set of matrices \(\{a, b, c, d\}\) given by closes under multiplication and is a representation of the group \(\mathrm{D}_{2}\) in Problem 2.9 . Data from Problem 2.9 Show that the...
Study smarter with the SolutionInn App