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Solar cell: Quiz


Question 1: When a photon is converted into an electron hole pair, typically in the donor material, the charges tend to remain bound in the form of an ________, and are separated when the exciton diffuses to the donor-acceptor interface.

Question 2: The diffusion of carriers does not happen indefinitely, however, because charges build up on either side of the junction and create an ________.
Lorentz forceMaxwell's equationsMagnetic fieldElectric field

Question 3: The invention of conductive polymers (for which Alan Heeger, ________ and Hideki Shirakawa were awarded a Nobel prize) may lead to the development of much cheaper cells that are based on inexpensive plastics.
Alan MacDiarmidHarry KrotoAlan J. HeegerDonald J. Cram

Question 4: These cells have lower efficiencies than poly-Si, but save on production costs due to a great reduction in silicon waste, as this approach does not require ________ from ingots.
SawWater jet cutterBroaching (metalworking)Pliers

Question 5: ________ has a semiconductor wafer reclamation process that uses a specialized pattern removal technique to repurpose scrap semiconductor wafers to a form used to manufacture silicon-based solar panels.
IBMHewlett-PackardGeneral ElectricIntel Corporation

Question 6: The perception of the toxicity of CdTe is based on the toxicity of elemental ________, a heavy metal that is a cumulative poison.

Question 7: Researchers at ________, along with partners at Microcontinuum Inc.
Ames LaboratoryLawrence Livermore National LaboratoryIdaho National LaboratoryBrookhaven National Laboratory

Question 8: Renewable Energy: Solar at the ________
Open Directory ProjectTime WarnerJim BarksdaleLife (magazine)

Question 9: The power output of a solar array is measured in watts or ________.

Question 10: A solar cell may operate over a wide range of ________ (V) and currents (I).
VoltageMultimeterElectric currentElectrical network


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