Recent Homework Questions About Band
Homework Help: Solar Energy Please HelpASAP
d) In the up-convertor 1, two photons are converted into one photon with 100% conversion efficiency. If all photons with energy above that of the band gap of a-SiC:H are absorbed in the a-SiC:H layer, in which spectral range can the photons be up-converted so that they ...
Thursday, December 5, 2013 at 4:46am
Solar energy please help
1-Consider an organic solar cell consisting of a TiO2 semiconductor with an ionization energy 7.8eV and a polymer with an electron affinity 3.4eV. Which of the followning band diagrams corresponds to the organic solar cell. The band gap of TiO2 is 3.5eV. (a) (b) 2-What is the ...
Friday, November 29, 2013 at 11:23pm
Solar Energy please help
Solar simulators are used to study the performance of solar cells in the lab. In the figure below (left picture), the spectral power density of a solar simulator is shown with the blue line. The spectral power density of this solar simulator is given by: P(λ)=7.5∗...
Friday, November 29, 2013 at 11:18pm
60 percent of the students in a marching band are girls. There are 30 girls in the marching band. How many students are there altogether?
Sunday, November 24, 2013 at 6:14pm
We saw the months of wicked weather, As day to painful night did turn, Waiting, huddled close together For the frozen suns return. Our nights were almost endless torture. Our food was gone. Our fuel was low. We came in search of grand adventure But ended trembling in the...
Friday, November 22, 2013 at 11:49am
Do these look correct? Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. _X_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good pitcher most of all. _X_True __False 3. The following ...
Tuesday, November 19, 2013 at 9:44am
1- 7.36e-2 189 2-metal Solid hydrogen has a half filled s-band insulator Solid helium has a filled s-band 3-1.13 semiconductor 4-Ionization of phosphorus requires some minimum temperature n_type The concentration of conduction electrons is fixed by the concetration of ...
Friday, November 15, 2013 at 2:28pm
it's right answer? H2 is met and half filld s band?
Friday, November 15, 2013 at 11:08am
Given three restriction enzymes, cuts and base pairs on the plasmid map. How do you apply this information to a autoradiogram of sequencing gel? Also, include the band locations.
Thursday, November 14, 2013 at 12:02pm
At the half time show, a marching band marched in formation. The lead drummer started at a point with coordinates (-2,-5) and moved 3 steps up and 1 step right. a: write a rule to describe a translation b: what were the coordinates of the drummers final position
Tuesday, November 12, 2013 at 11:57am
Pre Alg (Check my work?)
1.) In which Quadrant is the point (x,y) located if x is negative and y is positive? II III IV (MY ANSWER) I 2.) Point A(5,-10) is reflected over the Y axis. Write the coordinates of A'. (-8,-10) (8,10) (8,-10) MY CHOICE (-8,10) 3.) At the half-tame show, a marching band ...
Monday, November 11, 2013 at 4:54pm
No. If you've ever seen "Music Man," you'd realize that band concerts were very popular.
Monday, November 11, 2013 at 12:28pm
PLEASE HELP WITH THIS HISTORY!!!! Multiple Choice 1. Which of the following statements describes the most common experience of Native Americans after encountering Europeans for the first time? (1 point) Native Americans thought the settlers had nothing to offer them in trade ...
Sunday, November 3, 2013 at 12:47am
Can someone please help me with this history!!!!!!
Multiple Choice 1. Which of the following statements describes the most common experience of Native Americans after encountering Europeans for the first time? (1 point) Native Americans thought the settlers had nothing to offer them in trade or knowledge. Native Americans ...
Sunday, November 3, 2013 at 12:45am
At 300 K we see the electron concentration in the conduction band for pure (undoped) Si is 1010/cm3. How many electrons per Si atom is this? You can use scientific notation, as in A.AAeB Si is diamond cubic with 8 Si atoms per unit cell and a lattice parameter of 0.543 nm.
Friday, November 1, 2013 at 1:00am
why is kpop so popular, especially the kpop band SHINee?
Wednesday, October 30, 2013 at 5:38pm
It consists of a core of titin, forming a strand that continues across the I band to the Z line on that side.
Wednesday, September 25, 2013 at 9:55pm