Quantum Dot–Bridge–Fullerene Heterodimers with Controlled Photoinduced Electron Transfer


  • This research was carried out under the Office of Science US-DOE Contract No. DE-AC02-98CH10886. We thank Dr. H. L. Wang from LANL for providing the fullerene and Dr. M. Sfeir from BNL for help with transient absorption measurements.


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Link and gain: A series of donor–bridge–acceptor systems in the form of core/shell CdSe/ZnS quantum dot–bridge–fullerene heterodimers (see picture) with varying bridge length and varying quantum dot size were self-assembled by a surface-based stepwise method to demonstrate control of the rate and of the magnitude of fluctuations of photoinduced electron transfer at the single-molecule level.