1. Calculate the filling factor of a photovoltaic cell whose dimensions are 15 cm per side,...

1. Calculate the filling factor of a photovoltaic cell whose dimensions are 15 cm per side, and a thickness of 200 µm of which 99% correspond to the “p” type absorbent layer and where there is also a amount of 13500 electrons. The thickness of the space loading region junction is 200 nm.
The cell is subjected to standard test conditions, which produces every second a generation of electron-hollow pairs of 2.0x10¹⁹ cm⁻³ and which translates into an increase in its density of 4.0x10¹³ cm⁻³. The efficiency of the cell is measured at 20%.
Consider that the cell is in thermal equilibrium (300K), its prohibited band is 1.12 eV and that the mobility coefficients are 1360 cm² / Vs for electrons and 450 cm² / Vs for holes.

Expert Solution

genius_generous answered 2 years ago

Q =10, 15 m3/s and the slope will be S = 15 cm/km and the side...

Q =10, 15 m3/s and the slope will be S = 15 cm/km and the side slope, so Z =1. For a trapezoidal channel, given the flow rate, Q, the slope, S, the side slope, Z, n = 0.014, the channel is to be designed to have minimum cost. You are required to: a) What is the value of Q and S? b) What is the ratio of bottom width, b, to flow depth, y? c) Design and draw the...

Calculate the following white cell count if the dilution of 1/100. Show your calculations. (3pts) Side...

Calculate the following white cell count if the dilution of 1/100. Show your calculations. (3pts) Side #1 Side #2 Square 1 = 30 white cells Square 1 = 27 white cells Square 2 = 28 white cells Square 2 = 27 white cells Square 3 = 25 white cells Square 3 = 24 white cells Square 4 = 27 white cells Square 4 = 24 white cells

1.) The femur of an elephant is about 90 cm long and 15 cm in diameter....

1.) The femur of an elephant is about 90 cm long and 15 cm in diameter. This is a scaling problem. The largest dinosaur probably weighed about 10 times as much as a large elephant. In this problem we will be discussing scaling. For reference, areas scale as length squared(A=L^2 for a square and A=3.14*r^2 for a circle) and volume scales as length cubed. To describe the size of a dinosaur's femur compared to that of an elephant's, the dinosaur's...

A solar cell module 100 cm x 50 cm which generate power 100 W peak per...

A solar cell module 100 cm x 50 cm which generate power 100 W peak per module. Solar power plant planned to generate electrical power to a village with 50 houses. If each of house is given electrical power 200 W with consumption of 5 hours and the capability of solar cell to catch the sun at peak average 6 hours per day. So: a) Calculate Total needed solar cell modules b) Calculate total of battery storage needed that have...

4 charges are fixed to the corners of a square of side .53 cm. Charge 1...

4 charges are fixed to the corners of a square of side .53 cm. Charge 1 of -1 uC is fixed to the top left corner. Charge 2 of -2uC is fixed to the top right corner, charge 3 of 3uC is fixed to the bottom left corner , and charge 4 of -4uC is fixed to the bottom right corner. a) find the magnitude and direction of the electric field at the center of the square b) find the...

1. Given an equilateral triangle ABC with a side of 5 cm. Find the probability that...

1. Given an equilateral triangle ABC with a side of 5 cm. Find the probability that a point taken at random will be located from point A at a distance greater than 2 cm. 2. There are two boxes: inside the first 10 white and 15 black balls, inside the second 10 white and 10 black balls. 5 balls are transferred from the first box to the second and then one ball is removed from the second box at random,...

Three protons occupy the vertex of an equilateral triangle with each side of 1 cm. Mp=...

Three protons occupy the vertex of an equilateral triangle with each side of 1 cm. Mp= 1.67E-27 kg, qp= 1.6E-19 C. a) release all three protons from rest, what is the max speed of each proton? b) Only one proton is released while the other two are fixed. Find the speed of the moving proton after a long time.

Calculate the expected frequency for each cell and explain the meaning of expected frequencies (15 pts)....

Calculate the expected frequency for each cell and explain the meaning of expected frequencies (15 pts). Gun Ownership Types of Residential Area Rural Town City Total Own Gun 555 No Gun 989 Total 593 585 366 1544

Calculate the number of photons per cubic centimeter inside a cavity whose walls are heated to...

Calculate the number of photons per cubic centimeter inside a cavity whose walls are heated to 3000 K. Compare this to the corresponding number at 3 K.

Question: Calculate the mass density (in kilogram per cubic meter) of a cylinder whose mass is...

Question: Calculate the mass density (in kilogram per cubic meter) of a cylinder whose mass is (13.77 ± 0.11) g, diameter is (1.83 ± 0.07) cm, and height is (3.25 ± 0.05) cm. In all calculations below, you must also determine the uncertainties in the calculated values. 1. Calculate the percent uncertainty for the mass of the cylinder. ( 1 2 3 4 5 ) (2.25 pts) 2. Calculate the percent uncertainty for the diameter of the cylinder. ( 1...

Question