Question: The gap between valence and conduction bands in diamond is 5.47eV. (a) What is the maximum wavelength of a photon that can excite an electron

The gap between valence and conduction bands in diamond is 5.47eV.
(a) What is the maximum wavelength of a photon that can excite an electron from the top of the valence band into the conduction band? In what region of the electromagnetic spectrum does this photon lie?
(b) Explain why pure diamond is transparent and colorless.
(c) Most gem diamonds have a yellow color.
Explain how impurities in the diamond can cause this color.

Step by Step Solution

★★★★★

3.40 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

hc a 227107 m227 nm in the ultraviolet b Visible light lacks enough energy ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-M-P-M-C-M (17).docx

120 KBs Word File

Students Have Also Explored These Related Modern Physics Questions!

The energy gap between valence and conduction bands in germanium is 0.72eV. What range of wavelengths can a photon have to excite an electron from the top of the valence band into the conduction hand?

The energy gap between valence and conduction bands in zinc sulfide is 3.6 eV. What range of wavelengths can a photon have to excite an electron from the top of the valence band into the conduction...

What is the maximum wavelength of a photon that can create an electron-positron pair?

The gap between valence and conduction bands in diamond is 5 . 4 7 eV Part A What is the maximum wavelength of a photon that can excite an electron from the top of the valence band into the...

The gap between valence and conduction bands in silicon is 1 . 1 2 eVeV. A nickel nucleus in an excited state emits a gamma - ray photon with wavelength 9 . 3 1 1 0 4 9 . 3 1 1 0 4 nmnm . Part A How...

An electron occupies the highest energy level of the valence band in a silicon sample. What is the maximum photon wavelength that will excite the electron across the energy gap if the gap is 1.14 eV?...

Suppose the LED band gap is $2.5 \mathrm{eV}$, which corresponds to a wavelength of $500 \mathrm{~nm}$. Consider the possible electron transitions in Figure P29.76. $500 \mathrm{~nm}$ is the A....

a. The band gap between the valence and the conduction bands in zinc oxide (ZnO) is 3.2 eV. Suppose an electron in the conduction band combines with a hole in the valence band and the excess energy...

(a) What maximum light wavelength will excite an electron in the valence band of diamond to the conduction band? The energy gap is 5.50 eV. (b) In what part of the electromagnetic spectrum does this...

A certain material has a molar mass of M = 21.8 g/mol, a Fermi energy of EF = 5.16 eV, and 2 valence electrons per atom. What is its density? Number Units V\f(a) What is the maximum wavelength of the...

A parking lot has 31 visitor spaces, numbered from 0 to 30.Visitors are assigned parking spaces using the hashing function h(k) = k mod 31, where k is the number formed from the first three digits on...

What is meant by and what are some examples of globalization?

Turn - in . Make shaded contour plots of all your outputs, for each of the collection of files in the Example 1 , Example 2 , and Example 3 folders, respectively. In addition to your codes, you...

The AG of vaporization for cyclohexane at 298 K and 1.00 atm is -0.2164 kJ/mol. Calculate the pressure, in atm, of cyclohexane vapor in equilibrium with cyclohexane liquid at 298 K.

During 2012, Jensen Company disposed of three different assets. On January 1, 2012, prior to their disposal, the accounts reflected the following: Asset Original Cost Residual Value Estimated Life...

Rank the following active methylene compounds in order of decreasing acid strength. most acidic least acidic Answer Bank NO CH, HC CH HC O,N. NO

Hansen Computer Corp. acquires $2,150,000 in new 7-year class assets (all tangible personal property) in February 2020. The company elects to take all available Sec. 179 expense and bonus first-year...

Smith, Inc. is considering the issuance of a 20-year convertible bond that will be priced at par value of $1,000 per bond. The bonds carry a 12% annual coupon interest rate and can be converted into...

Find each percent change. Round to nearest tenth of a percent. State if it is an increase or a decrease. From 79 to 100

1.Two different methods are used to help children learn how to spell. Each child was given 60 words to spell, and it was noted how many words each child spelled correctly. Here are the counts for...

Imagine you are the district manager for Gord-a large automotive manufacturer.Gord assemblestheir carsat six different manufacturing plants across the city. In assembly plants thecompanies being the...

The answers above are wrong please help A population contains seven million Us and ve million 1s. What is the sampling distribution of the sample mean when the sample size is n = 5? Let X be the...