2015
DOI: 10.1063/1.4919381
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Non-resonant below-bandgap two-photon absorption in quantum dot solar cells

Abstract: Abstract:We are the first to show with clear experimental results that photons that have energy lower than the transition energy between quantum dots states and valance band can still contribute greatly to the photocurrent via both one-photon absorption process (1PA) and two-photon absorption process (2PA).The tailing states function as both the energy states for low energy photon absorption and the photocarriers extraction pathway. One of the biggest advantages of our method is that it can clearly differentia… Show more

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Cited by 11 publications
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