To my best knowledge, that is not how it works. http://en.wikipedia.org/wiki/Quantum_dot
A quantum dot is like an atom with an unlimited number of electron orbitals. As new electrons enter the dot, the electron takes on the next available higher energy level. More energy is required to push an electron into a highly populated quantum dot because of the Pauli Exclusion Principle. However, when electrons become polaritons, the Pauli Exclusion Principle does not apply anymore because the electrons now become polaritons (bosons). Now, only the Heisenberg Uncertainty Principle (HUP) applies and a large and growing population of polaritons will increasingly localize any given newly created polariton to a higher energy state. In other terms, as more electrons and photons enter the optical cavity, the average energy of the resident particle quasiparticles goes up due to increasing average localization of the polariton population. Polariton optical cavities ar used to simulate astrophysical black holes. http://arxiv.org/pdf/1104.3013.pdf Stranger yet, the polaritons reach an equalized energy states even at high energies and form a Bose Einstein condensate at an identical yet very high level. This is why a polariton optical cavity is superconducting even when it packs very high energy levels.
