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Updated: May 14, 2026

Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
Published on: October 13, 2017
Photobleaching of quantum dots by non-resonant light
Xingbo Shi1, Yang Tu, Xiaojun Liu
1College of Food Science and Technology, Hunan Agricultural University, Changsha, Hunan 410128, China.
Abstract:
Core-shell quantum dots suffer from photobleaching by light at wavelengths longer than their emission wavelengths. That is, QD photobleaching can be triggered by photons with low energies that are insufficient to pump electrons into the conduction band. The most probable reason is that electrons are pumped into a surface state and then nonradiatively decayed as in conventional photobleaching.
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