How Inner-Filter Effects (IFE) can affect your fluorescence measurements: A case study - Colloidal InP Quantum Dots

Introduction

Figure 2: Excitation Emission Matrix (EEM) used to quickly determine optimal spectral ranges for further 2D spectral analysis.

During the last two decades, a great deal of attention has been focused on the optoelectronic properties of nanostructured semiconductors or Quantum Dots (QDs). QDs absorb over a broad range and have photoluminescence emission over a narrow range which can be tuned depending on the material from which the QD is made and the size of the QD. The applications of QDs continue to expand, i.e. in vivo imaging, light-emitting devices, photodetection or solar energy conversion [1].

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