Cadmium telluride is an important material for solar cells. (a) What is the band gap of CdTe?
Question:
(a) What is the band gap of CdTe?
(b) What wavelength of light would a photon of this energy correspond to?
(c) Draw a vertical line at this wavelength in the figure shown with Exercise 12.69, which shows the light output of the sun as a function of wavelength.
(d) With respect to silicon, does CdTe absorb a larger or smaller portion of the solar spectrum?
Step by Step Answer:
a b c d The band gap of CdTe is 150 eV or 145 kJmol hc 6626 x ...View the full answer
Chemistry The Central Science
ISBN: 978-0321696724
12th edition
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
Related Video
Using a few basic physics principles, you can impress your friends with a trick that makes a bottle disappear. For this experiment, you will need a mini plastic bottle, glycerin, a glass, and a funnel. First, open the bottle and pour some glycerin into it, then close the bottle tightly. Next, pour some water into the glass using a funnel. Place the mini bottle into the glass of water and it will look normal. This is because light travels through air faster than it travels through the glass and water, allowing our eyes to see the bottle inside the glass. However, when you fill the mini bottle with more glycerin, and pour glycerin into the glass, then put the glycerin filled bottle into the glass with glycerin in it. Half of the bottle that is submerged in the glycerin will become invisible as the light travels through glass and glycerin at the same speed, thus it does not bend and no refraction takes place, making the bottle invisible. This happens because both glass and glycerin have almost the same refractive index, which causes the speed of light to be the same in both mediums, causing no bending of light and making the bottle disappear.
Students also viewed these Physical Chemistry questions
-
In its natural state, zirconium, which is an important material of construction for nuclear reactors, is associated with hafnium, which has an abnormally high neutron-absorption cross section and...
-
Silicon has a band gap of 1.1 eV at room temperature. (a) What wavelength of light would a photon of this energy correspond to? (b) Draw a vertical line at this wavelength in the figure shown, which...
-
Cadmium telluride, CdTe, takes the zinc blende structure (Figure 12.26) with a unit cell edge length of 6.49 . There are four cadmium atoms and four tellurium atoms per unit cell. How many of each...
-
Research about the competitive and comparative advantage of the Argentina in terms of physical and human resources and how it is making use of these resources for international trade purpose. 3....
-
The following accounts appear in an adjusted trial balance of Hampshire Consulting. Indicate whether each account would be reported in the (a) Current asset; (b) Property, plant, and equipment; (c)...
-
On January 1, 2007 Seaver Company sold land with a book value of $23,000 to Bench Company. Bench Company paid $15,000 down and signed a $15,000 non-interest-bearing note, payable in two $7,500 annual...
-
Exercise 2.229 plotted the Golden State Warriors point differential, Golden State points - Opponent points, each minute of one game during their record breaking 2015-2016 season. Adam Pearce of...
-
Suppose the population of Area Y is relatively young while that of Area O is relatively old, but everything else about the two areas is equal. a. Would interest rates likely be the same or different...
-
What is the output of the following code ? def f(n): return [[int(j=i) for j in range(n)] for i in range(n)] def show(mat): n=len(mat) for i in range(n): for j in range(n): print(mat[i][j],end=' ')....
-
Webmasters.com has developed a powerful new server that would be used for corporations Internet activities. It would cost $10 million at Year 0 to buy the equipment necessary to manufacture the...
-
Covalent bonding occurs in both molecular and covalent network solids. Why do these two kinds of solids differ so greatly in their hardness and melting points?
-
The semiconductor GaP has a band gap of 2.2 eV. Green LEDs are made from pure GaP. What wavelength of light would be emitted from an LED made from GaP?
-
Consider the financial advisor problem discussed in Chapters 2, 3, and 4. Using predicate calculus as a representation language: a. Write the problem explicitly as a production system. b. Generate...
-
Choose a type of business you would like to run. Then search the Internet for government grants that might be applicable for you and your business.
-
Go to a directory of venture capitalists and ascertain what percentage of funds for a typical venture-capital firm are invested in seed, start-up, expansion or development, and acquisitions or...
-
Should the government provide grants for entrepreneurs starting new businesses? Should the government guarantee loans for small businesses that are missing the necessary track record, assets, or...
-
Analyze the prospectuses of five companies going public. What are the reasons they state for going public? How are they going to use the proceeds? What are the major risk factors presented?
-
The firm needs to make sales. What is the best way to motivate salespeople to make more sales and improve the performance of the firm? How would you effectively monitor their performance under the...
-
On May 15, 2022, Powell Inc. obtained a six-month working capital loan from its bank. The face amount of the note signed by the treasurer was $600,000. The interest rate charged by the bank was 7%....
-
Tarick Toys Company manufactures video game consoles and accounts for product costs using process costing. The following information is available regarding its June inventories. The following...
-
A household freezer operates in a room at 20C. Heat must be transferred from the cold space at a rate of 2 kW to maintain its temperature at 30C. What is the theoretically smallest (power) motor...
-
In a cryogenic experiment you need to keep a container at 125C although it gains 100 W due to heat transfer. What is the smallest motor you would need for a heat pump absorbing heat from the...
-
A temperature of about 0.01 K can be achieved by magnetic cooling. In this process a strong magnetic field is imposed on a paramagnetic salt, maintained at 1 K by transfer of energy to liquid helium...
-
1. There are missing parts in the program below and fix the bugs: isJavaFun = true; = is Fish Tasty false; System.out.println("Is Java Fun' is JavaFun); System.out.println("Is Fish TASTY" isFish...
-
Write regular expressions in Java for the following: Strings between10and20characters (inclusive) which have odd lengths. The allowed characters here are not specified, and should be considered...
-
These containers are available in four sizes: huge, large, medium, and small, which can hold 50, 20, 5 and 1 widgets, respectively. The cost of each of the containers, at this time, is $35.00 (huge),...
Study smarter with the SolutionInn App