Resonant Energy Transfer in Si Nanocrystal Solids
作者： Rens Limpens , Arnon Lesage , Peter Stallinga , Alexander N. Poddubny , Minoru Fujii
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摘要: Energy exchange between closely packed semiconductor quantum dots allows for long-range transfer of electronic energy and enables new functionalities nanostructured materials with a huge application potential in photonics, optoelectronics, photovoltaics. This is illustrated by impressive advances quantum-dot solids based on nanocrystals (NCs) direct bandgap materials, where this effect has been firmly established. Regretfully, the (resonant) close-packed ensembles NCs remains elusive silicon—the main material photovoltaic industries. subject present study which we conclusively demonstrate process taking place dense dispersions Si an SiO2 matrix. Using samples different NC configurations, can directly determine wavelength dependent rate show that it (i) be modulated parameters, (ii) decreases size, thus being consistent flow p...
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