Doped luminescent materials and particle discrimination using same

摘要

Doped luminescent materials are provided for converting excited triplet states to radiative hybrid states. The doped materials may be used to conduct pulse shape discrimination (PSD) using luminescence generated by harvested excited triplet states. The doped materials may also be used to detect particles using spectral shape discrimination (SSD).

主权项

1. A method of making a material for particle detection, the method comprising:
providing a host material, wherein the host material is configured to generate excited singlet and triplet states responsive to excitation; and doping the host material with a quantity of heavy atoms wherein the quantity of heavy atoms are configured to generate luminescence from at least a portion of the excited triplet states, and wherein the quantity is sufficient to generate detectable luminescence from the excited triplet states, and wherein the quantity is insufficient to quench substantially all luminescence from the excited singlet states wherein the host material is configured to generate luminescence from the excited singlet states at a first wavelength, and wherein the heavy atoms are configured to generate luminescence from the excited triplet states at a second wavelength, different from the first wavelength.