The enormous enhancement of optical fields within the gaps of nanoantennas can be exploited for improved harvesting and detection of light. When semiconductor colloidal quantum dots (CQD) are embedded within such antennas, unique optoelectronic devices are realized with high sensitivity and fast response time which profit from the optical tunability of both the CQDs and the antennas.
Such electro-optical devices reveal intricate interactions between their current and optical properties.
We study these interactions in nanoantennas embedded with PbSe CQDs. The devices response to light as a function of bias and wavelength appears to be non-trivial and unique.
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