The dark saturation current of a solar cell is 1.6E-8 A/m2, the cell temperature is 335 K, the short-circuit current density is 155 A/m2, Vmax is 0.466 V and the available solar radiation is 750 W/m2 . The Boltzmann’s gas constant is 1.381X10-23 J/K and the electronic charge is 1.602X10-19 J/V.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter1: Atomic Structure

Section: Chapter Questions

Problem 6RQ: How many valence electrons are generally contained in materials used for insulators?

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Concept explainers

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).

Question

The dark saturation current of a solar cell is 1.6E-8 A/m2, the cell temperature is 335 K, the short-circuit current density is 155 A/m2, Vmax is 0.466 V and the available solar radiation is 750 W/m2 . The Boltzmann’s gas constant is 1.381X10-23 J/K and the electronic charge is 1.602X10-19 J/V. Calculate Open-circuit voltage Voc in Volts = Answer for part 1 Current density at maximum power Imax in A/m2= Answer for part 2 Maximum power Pmax in W/m2 = Answer for part 3 % Maximum efficiency ηmax = Answer for part 4

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