Abstract
Using the physically separated electron and hole of an interdot exciton in a quantum dot molecule we have studied local electric fields with extremely high resolution. By monitoring the interdot exciton energy we have measured an electric field generated through non-resonant excitation in a Schottky device. A maximum optically generated field of ∼3.25 kV/cm was observed which corresponds to 5.04% of the total applied field. The time decay of the field was found to be in the range of 110–140 μs while the onset of the field was shorter than our experimental resolution (7–8 μs).
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Acknowledgments
The authors would like to thank Dan Gammon and Allan Bracker for helpful discussions. This work was supported by the Ohio University CMSS program and NSF grant number DMR-1005525.
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Stinaff, E., Wijesundara, K., Garrido, M., Ramanathan, S. (2014). Stark Effect and the Measurement of Electric Fields with Quantum Dot Molecules. In: Wu, J., Wang, Z. (eds) Quantum Dot Molecules. Lecture Notes in Nanoscale Science and Technology, vol 14. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8130-0_11
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