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The Shockley–Queisser limit, zoomed in near the region of peak efficiency. In a traditional solid-state semiconductor such as silicon, a solar cell is made from two doped crystals, one an n-type semiconductor, which has extra free electrons, and the other a p-type semiconductor, which is lacking free electrons, referred to as "holes."
But in any case, f c cannot be more than 1, and the upper limit (the Shockley-Queisser limit) requires taking f c = 1. Eric Kvaalen 19:05, 6 September 2016 (UTC) Yes, virtually all above-gap photons come from recombination, but not all recombinations create above-bandgap photons. (I don't think the fraction is as low as 10 −10 these days ...
Hans-Joachim Queisser (born 6 July 1931, Berlin, Germany) is a solid-state physicist. He is best known for co-authoring the 1961 work on solar cells that detailed what is today known as the Shockley–Queisser limit , now considered the key contribution in this field.
English: The Shockley-Queisser limit for the maximum possible efficiency of a solar cell. The x-axis is the bandgap of the solar cell, the y-axis is the highest possible efficiency (ratio of electrical power output to light power input).
English: The Shockley-Queisser limit for the maximum possible efficiency of a solar cell (black), and the inevitable losses that limit it (other colors). The black height is energy that can be extracted as useful electrical power; the pink height is energy of below-bandgap photons; the green height is energy lost when hot photogenerated electrons and holes relax to the band edges; the blue ...
Speed Limit is an action video game that features six different genres, which seamlessly change every two levels as the player progresses throughout the game. [6] The first two levels represent a side-scrolling platform-shooter game, the third and the fourth levels depict a racing-shooter game, the fifth and sixth levels emulate a racing-shooter game from a faux 3D perspective, and the seventh ...
William Bradford Shockley Jr. (February 13, 1910 – August 12, 1989) was an American inventor, physicist, and eugenicist.He was the manager of a research group at Bell Labs that included John Bardeen and Walter Brattain.
Need for Speed II features country-themed tracks from North America, Europe, Asia and Australia.. Like its predecessor, Need for Speed II allows players to race exotic cars in country-themed tracks from North America, Europe, Asia and Australia, either against computer-controlled opponents or human opponents via a LAN, modem, serial connection, or in split screen.