Stanislav Baluschev, Vladimir Yakutkin, Tzenka Miteva, Yuri Avlasevich, Sergei Chernov, Sergei Aleshchenkov, Gabriele Nelles, Andrei Cheprakov, Akio Yasuda, Klaus Müllen and Gerhard Wegner Blue-Green Up-Conversion: Noncoherent Excitation by NIR Light Angewandte Chemie International Edition 46
An emitter/sensitizer couple (see picture; C red/green, H white, N blue, Pd gray) was specially designed for the process of noncoherently excited photon up-conversion. The hypsochromic shift between the energy of the excitation photons and the emitted photons is about 0.7 eV, and an external quantum yield of 0.04 is achieved. As noncoherent excitation source, the near-infrared part of the solar spectrum was used.
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