http://www.kurzweilai.net/capturing-more-of-the-suns-energy-to-improve-photovoltaic-cells Accelerating Intelligence Sat, 25 May 2013 04:13:35 +0000 hourly 1 http://wordpress.org/?v=3.4.1 http://www.kurzweilai.net/capturing-more-of-the-suns-energy-to-improve-photovoltaic-cells/comment-page-1#comment-47141 JC Mon, 29 Oct 2012 19:33:59 +0000 http://www.kurzweilai.net/?p=168915#comment-47141 It sounds like EQE is a percentage relationship rather than an energy relationship. One photon knocks out one electron and sends it into the circuit, so that is called 100%, but all the energy of the photon is not needed to knock the electron out so some of it forms heat. When they can tap that extra energy to occasionally pop out a second electron, it looks like 200% for that photon. It sounds like EQE is a percentage relationship rather than an energy relationship. One photon knocks out one electron and sends it into the circuit, so that is called 100%, but all the energy of the photon is not needed to knock the electron out so some of it forms heat. When they can tap that extra energy to occasionally pop out a second electron, it looks like 200% for that photon.

]]> http://www.kurzweilai.net/capturing-more-of-the-suns-energy-to-improve-photovoltaic-cells/comment-page-1#comment-46991 snake0 Mon, 29 Oct 2012 13:56:35 +0000 http://www.kurzweilai.net/?p=168915#comment-46991 Just a guess but I would think it is because the quantum dots are producing more than one electron per photon therefore its 114% spread among the multiple electrons compared to semiconductors which has a limit of 100% EQE which would mean full efficiency for the single electron. Just a guess but I would think it is because the quantum dots are producing more than one electron per photon therefore its 114% spread among the multiple electrons compared to semiconductors which has a limit of 100% EQE which would mean full efficiency for the single electron.

]]> http://www.kurzweilai.net/capturing-more-of-the-suns-energy-to-improve-photovoltaic-cells/comment-page-1#comment-46981 rbwilli Mon, 29 Oct 2012 13:40:11 +0000 http://www.kurzweilai.net/?p=168915#comment-46981 "...the first solar cell with external quantum efficiency (EQE) exceeding 100 percent." Efficiency exceeding 100%? Am I missing something here? “…the first solar cell with external quantum efficiency (EQE) exceeding 100 percent.” Efficiency exceeding 100%? Am I missing something here?

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