Abstract
The cover picture shows a CdSe–CdTe nanorod heterostructure composite and the spectrally- and time-resolved photoluminescence from a typical sample. Photoexcitation promotes vectorial charge separation between the two halves of the rod and can be tuned by quantum confinement. Rapidly decaying CdTe emission is evident in the 650-nm region, while the charge-transfer emission—signaling recombination of the electron and hole—is seen in the near-infrared region and is found to decay on a microsecond time scale. Such a long-lived charge-separated state is a key requirement for future photovoltaic applications. For more information, please read the Full Paper “Nanorod Heterostructures Showing Photoinduced Charge Separation” by G. D. Scholes and co-workers beginning on page 1633.
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