Answer the following True or False: 1. A direct bandgap material absorbs more light in a given thickness than an indirect band gap material. 2. CdTe thin film solar cells make up less than 8% of the current installed photovoltaic capacity. 3. The voltage generated in a photovoltaic cell is linearly dependent on the light intensity. 4. All commercially produced photovoltaic cells use a transparent conducting oxide (TCO) as a front contact. 5. Si solar cells are used in space applications due to their higher resistance to radiation damage.

Q: An n-type semiconductor with direct band structure (Eg = 2.5 eV) is applied with a DC voltage shown…

A: Given: An n-type semiconductor with direct band structure (Eg = 2.5 eV) is applied with a DC…

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A: Photocurrent (Iph)= 0.096 A Open circuit voltage(Voc)= 0.6 volts Here we will use the…

Q: What type of a material would have a very small band gap or band overlap and need a very small…

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Q: a. What is the Staebler-Wornski effect in an amorphous silicon (a-Si) solar cells and how can it be…

A: Solution (a) -  Staebler-Wornski effect - The light-induced metastable changes in the…

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Q: 10. The is a two-terminal semiconductor device whose terminal resistance will vary ...........…

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A:

Q: A practical silicon-based solar cell is constructed from a n+ p junction. a. Explain briefly the…

A: Here in this question they are interested in the calculation of PN junction solar cell.   Here the…

Q: Draw band diagrams for below contacts. a) metal-n-type semiconductor for Φm Φs c) metal-p-type…

A: this question is from electronics Devices and circuit.

Q: 6. Indicate the type of the following panel, justify : 2. a. Amorphous Silicon b. Mono Crystalline…

A: 1) this is the amorphous silicon because in it a glossy layer is used on the top.

Photoelectric

The photoelectric effect occurs when light (or similar incident radiation, including X-rays) falls on material together with a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories (and to a Nobel Prize for Albert Einstein). Photoelectric cells, or photocells, are utilized in burglar-alarm light detectors and garage-door openers (each employs a through-beam of light this is broken when something movements throughout it), and also to play soundtracks on film movies (in which a light beam shines through the soundtrack encoded at the film and is "read" with the aid of the photocells).