photon upconversion Archives – The Green Optimistic green tech news, since 2008 Thu, 07 Dec 2017 19:19:54 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Cheaper and Safer Solvents for Increasing Solar Cell Efficiency https://www.greenoptimistic.com/solvents-increasing-solar-cell-efficiency-20171207/ https://www.greenoptimistic.com/solvents-increasing-solar-cell-efficiency-20171207/#respond Thu, 07 Dec 2017 19:19:54 +0000 https://www.greenoptimistic.com/?p=64906 The amount of solar energy that a solar cell can convert into electrical energy is presently limited by its bandgap, such that only the photons with higher energies can be converted, leaving photons with lower energies useless. This limit is also called the Shockley-Queisser limit and in order to address such hindrance in achieving optimum […]

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